A portable refrigerator box

By incorporating a built-in battery and an adjustable portable cooler box, combined with semiconductor cooling and heat dissipation components, the problems of limited battery life and single placement options for coolers are solved, enabling flexible use and efficient refrigeration.

CN224455044UActive Publication Date: 2026-07-03ZHONGSHAN YICHENG ELECTRIC APPLIANCE TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGSHAN YICHENG ELECTRIC APPLIANCE TECH CO LTD
Filing Date
2025-07-23
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing cooler boxes rely on external batteries for power, making them inconvenient to carry and limiting their placement options and flexibility of use.

Method used

Design a portable cooler box with a built-in battery that can be placed horizontally or vertically. It uses a cooling component that combines a semiconductor cooling chip and a heat-conducting element, and combines a fan and a heat sink for heat dissipation. It also has a built-in display screen and a speaker for monitoring temperature and battery level.

Benefits of technology

It features a built-in battery for extended battery life, improved portability, and flexible usage, making it suitable for outdoor camping and car travel, while also meeting refrigeration needs.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a portable refrigerator box, whose outer shell includes a first cavity, a second cavity, and a third cavity arranged sequentially; an inner liner assembly is disposed in the first cavity; a heat dissipation assembly is disposed in the second cavity; a cooling assembly is disposed between the inner liner assembly and the heat dissipation assembly, the cooling assembly including a semiconductor cooling chip and a cooling conductor, one side of the cooling conductor being connected to the semiconductor cooling chip, and the other side of the cooling conductor being connected to the inner liner assembly; a battery is disposed in the third cavity; wherein, the first cavity has a first cover at the end away from the second cavity; the third cavity has a second cover; the refrigerator box can be placed horizontally or vertically. It has a built-in battery for extended operation, is easy to carry, and can be placed horizontally or vertically, offering flexible use, making it suitable for outdoor camping, car travel, and short-distance transportation of items requiring refrigeration or a specified temperature.
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Description

Technical Field

[0001] This utility model relates to the field of refrigeration equipment technology, and in particular to a portable refrigeration box. Background Technology

[0002] Most current refrigerators are powered by external batteries, which makes them inconvenient to carry. Furthermore, their placement is limited, as they can only be placed upright, resulting in poor flexibility in use. Utility Model Content

[0003] The purpose of this utility model is to provide a portable refrigerator box with a built-in battery for power supply, which is easy to carry and can be placed horizontally or vertically, making it flexible in use.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A portable refrigerator box, comprising:

[0006] The outer shell includes a first cavity, a second cavity, and a third cavity arranged sequentially;

[0007] The inner liner assembly is located in the first cavity;

[0008] The heat dissipation component is located in the second cavity;

[0009] A cooling component is located between the inner liner component and the heat dissipation component. The cooling component includes a thermoelectric cooling chip and a heat conduction component. One side of the heat conduction component is connected to the thermoelectric cooling chip, and the other side of the heat conduction component is connected to the inner liner component.

[0010] The battery is located in the third cavity;

[0011] The first cavity has a first cover at the end away from the second cavity; the third cavity has a second cover.

[0012] This refrigerator can be placed horizontally or vertically.

[0013] In some embodiments, the first cavity and the second cavity are separated by a first support;

[0014] The first bracket is provided with a heat insulation plate on the side near the second cavity, and the heat insulation plate is provided with a groove that can accommodate the semiconductor cooling chip;

[0015] A cooling guide is provided on the side of the first support near the first cavity.

[0016] In some embodiments, the inner liner assembly includes an inner liner body;

[0017] The cooling conductor contacts the inner liner, and at least partially extends out of the inner liner.

[0018] In some embodiments, the inner liner assembly includes a first insulation layer and a sealing layer, and the outer periphery of the inner liner is provided with the first insulation layer and the sealing layer in sequence;

[0019] The first insulation layer is made of EVA material; the sealing layer is made of aluminum foil or self-adhesive tape.

[0020] In some implementations, a second support is also included;

[0021] The first bracket has a first protruding edge, which is sleeved on one end of the inner liner assembly;

[0022] The second bracket has a second protruding edge, which is sleeved on one end of the inner liner assembly.

[0023] In some implementations, the heat dissipation components include a fan and a heat sink;

[0024] The third cavity is equipped with an air inlet and an air outlet that are positioned opposite each other; the air inlet corresponds to the fan.

[0025] In some embodiments, a second insulating layer is provided on the inner side of the first cover.

[0026] In some implementations, a display screen, a speaker, and an electronic control board are also included; the display screen can display temperature and power consumption.

[0027] When the internal temperature of the inner liner assembly exceeds a preset value or the battery charge falls below a preset value, the horn will emit an alarm sound.

[0028] In some implementations, the control board is located in the third cavity and is connected to the power port.

[0029] The advantages of this utility model are: it has a built-in battery for extended operation, is easy to carry, and can be placed horizontally or vertically, making it flexible in use and suitable for outdoor camping, car travel, and short-distance transportation of items that require refrigeration or rated temperature. Attached Figure Description

[0030] Figure 1 This is a structural diagram of the refrigerator box of this utility model, which is placed horizontally;

[0031] Figure 2 This is a structural diagram of the refrigerator box of this utility model, placed vertically;

[0032] Figure 3 This is one of the exploded views of the refrigerator box of this utility model;

[0033] Figure 4 This is the second exploded view of the refrigerator box of this utility model;

[0034] Figure 5 This is the third exploded view of the refrigerator box of this utility model;

[0035] Figure 6 This is a cross-sectional view of the refrigerator box of this utility model;

[0036] Figure 7 This is a connection diagram of the electronic control board of this utility model;

[0037] Wherein: 1-Outer shell; 11-First shell; 12-Second shell; 120-Blocking wall; 13-First bracket; 131-First protruding edge; 14-Second bracket; 141-Second protruding edge; 15-First cover; 151-Second insulation layer; 16-Second cover; 17-Heat insulation board; 170-Groove; 181-Air inlet; 182-Air outlet; 1a-First cavity; 1b-Second cavity; 1c-Third cavity; 2-Inner liner assembly; 21-Inner liner; 22-First insulation layer; 23-Sealing layer; 3-Refrigeration assembly; 31-Semiconductor cooling chip; 32-Cooling component; 4-Heat dissipation assembly; 41-Fan; 42-Radiator; 5-Display screen; 6-Speaker; 7-Electronic control board; 8-Battery; 9-Power port; 10-Temperature sensor. Detailed Implementation

[0038] The present invention will now be described in further detail with reference to the accompanying drawings.

[0039] refer to Figures 1 to 4 A portable refrigerator box, comprising:

[0040] The outer shell 1 includes a first cavity 1a, a second cavity 1b and a third cavity 1c arranged in sequence;

[0041] Inner liner assembly 2 is located in the first cavity 1a;

[0042] Heat dissipation component 4 is located in the second cavity 1b;

[0043] A refrigeration component 3 is disposed between the inner liner component 2 and the heat dissipation component 4. The refrigeration component 3 includes a semiconductor cooling chip 31 and a heat-conducting element 32. One side of the heat-conducting element 32 is connected to the semiconductor cooling chip 31, and the other side is connected to the inner liner component 2. The semiconductor cooling chip 31 is used for cooling, and the heat-conducting element 32, which may be made of aluminum, is used to transfer cold energy to the inner liner component 2, thereby achieving refrigeration of objects placed inside the inner liner component 2.

[0044] Battery 8 is located in the third cavity 1c; battery 8 is a rechargeable battery that can be charged and discharged to provide power to the whole machine.

[0045] The first cavity 1a is provided with a first cover 15 at the end away from the second cavity 1b; the first cover 15 can be opened and closed, so that objects can be placed inside the inner liner assembly 2;

[0046] The third cavity 1c is provided with a second cover 16; the second cover 16 can be opened and closed, thereby facilitating the replacement of the battery 8;

[0047] Therefore, the inner liner component 2, the heat dissipation component 4, and the battery 8 are arranged in sequence. It can be understood that the inner liner component 2 is located at one end of the outer shell 1, and the battery 8 is located at the other end of the outer shell 1, so that the inner liner component 2 and the battery 8 are isolated from each other, making it safer to use. The battery 8 is convenient to carry, making the refrigerator box suitable for outdoor, vehicle and other places. In addition, the first cover 15 and the second cover 16 are independent of each other, and the battery 8 is easy to replace.

[0048] This refrigerator can be placed horizontally or vertically. The outer shell 1 can be long and narrow or block-shaped, with a square or rectangular cross-section, thus enabling both horizontal and vertical placement, making it more flexible and convenient to use.

[0049] refer to Figure 3 and Figure 4 The outer shell 1 includes a first shell 11, a second shell 12, a first bracket 13, a second bracket 14, a first cover 15, and a second cover 16;

[0050] The first housing 11 and the second housing 12 can be assembled by snap-fit ​​structure or threads, etc. The assembly of the first housing 11 and the second housing 12 forms an inner cavity. The first bracket 13 separates the first cavity 1a and the second cavity 1b. The third cavity 1c is formed by the partition wall 120 of the first housing 11 and the second housing 12 themselves.

[0051] The inner liner assembly 2 is located between the first bracket 13 and the second bracket 14, which can be understood as: the first bracket 13 and the second bracket 14 fix or limit the position of the inner liner assembly 2.

[0052] The first cover 15 can be assembled via a pivot structure to achieve flip-type opening and closing. For example, one end of the first cover 15 can be rotatably connected to the second housing 12 via a pivot, and the other end of the first cover 15 can be connected to the first housing 11 via a snap-fit.

[0053] The second cover 16 can be fastened by a snap-fit ​​structure. For example, the second cover 16 is provided with a protruding snap and the second housing 12 is provided with a corresponding recessed snap, so as to facilitate the disassembly of the second cover 16 and the replacement of the battery 8. Of course, the second cover 16 can also be assembled by a pivot structure.

[0054] refer to Figure 4 and Figure 5The first bracket 13 is provided with a heat insulation plate 17 on the side near the second cavity 1b. The heat insulation plate 17 is provided with a groove 170 that can accommodate the semiconductor cooling chip 31. The semiconductor cooling chip 31 is assembled in the groove 170. The heat insulation plate 17 can be made of heat insulation cotton or other materials and can be fixed to the first bracket 13 by screws or the like. The heat insulation plate 17 can reduce the transfer of energy, such as reducing the transfer of cold energy to the outside and reducing the transfer of heat energy to the inner liner assembly 2.

[0055] The first bracket 13 is provided with a cooling guide 32 on the side near the first cavity 1a. The cooling guide 32 can be fixed to the first bracket 13 by screws or the like; thus, the assembly structure is more compact.

[0056] The cooling surface of the semiconductor cooling chip 31 is connected to the cooling conductor 32, and the heating surface of the semiconductor cooling chip 31 faces the second cavity 1b, and heat is dissipated through the heat dissipation assembly 4.

[0057] refer to Figure 5 and Figure 6 The inner liner assembly 2 includes an inner liner body 21;

[0058] The cooling guide 32 contacts the inner liner 21, and the cooling guide 32 extends at least partially into the interior of the inner liner 21. For example, the cooling guide 32 is provided with a boss, which is inserted into the inner liner 21, so as to better transfer cold energy to the inner liner 21 and its interior.

[0059] The inner liner assembly 2 includes a first insulation layer 22 and a sealing layer 23, and the outer periphery of the inner liner body 21 is provided with the first insulation layer 22 and the sealing layer 23 in sequence.

[0060] The first insulation layer 22 is made of EVA material, and the sealing layer 23 is made of aluminum foil or self-adhesive tape.

[0061] Both the first insulation layer 22 and the sealing layer 23 can be wrapped or surrounded on the outer periphery of the inner liner 21. The first insulation layer 22 can be attached to the outer surface of the inner liner 21 with adhesive such as self-adhesive, and the sealing layer 23 can also be attached to the outer surface or periphery of the first insulation layer 22 with adhesive such as self-adhesive. Thus, the first insulation layer 22 forms an insulating layer to improve the refrigeration and insulation effect, and the sealing layer 23 further improves the insulating effect, reduces the contact between air and the outer surface of the inner liner 21, reduces the generation of condensate, and thus reduces energy loss.

[0062] refer to Figure 5 The first bracket 13 is provided with a first protruding edge 131, which is sleeved on one end of the inner liner assembly 2;

[0063] The second bracket 14 is provided with a second protruding edge 141, which is sleeved on one end of the inner liner assembly 2;

[0064] Therefore, the first bracket 13 and the second bracket 14 work together to fix the inner liner assembly 2, and also form a blocking or isolation structure, thereby improving the sealing and heat preservation of the inner liner assembly 2 to a certain extent.

[0065] refer to Figure 3 and Figure 4 The heat dissipation assembly 4 includes a fan 41 and a heat sink 42; the heat sink 42 may be made of aluminum and is connected to the heating surface of the thermoelectric cooler 31 to dissipate heat from the thermoelectric cooler 31.

[0066] The third cavity 1c is provided with an air inlet 181 and an air outlet 182 that are arranged opposite to each other; wherein, the air inlet 181 corresponds to the fan 41;

[0067] Therefore, the air inlet 181 and the air outlet 182 are positioned opposite each other to form a direct cooling airflow, making it less likely for cold air and hot air to mix, thus ensuring the cooling effect.

[0068] refer to Figure 3 and Figure 4 The inner side of the first cover 15 is provided with a second insulation layer 151, which may be made of EVA material. The second insulation layer 151 can cooperate with or abut against the end of the inner liner 21 or the second support 14 to improve the insulation effect.

[0069] refer to Figure 7 It also includes a display screen 5, a speaker 6, and an electronic control board 7;

[0070] The electronic control board 7 is equipped with a processing chip, which is existing technology. The electronic control board 7 can be located inside the third cavity 1c.

[0071] The display screen 5, battery 8, speaker 6, temperature sensor 10, etc. are all electrically connected to the electronic control board 7;

[0072] The display screen 5 can be installed in the first housing 11, and the speaker 6 can be installed in the electronic control board 7;

[0073] Display screen 5 can display temperature and battery level, as well as the power on / off status of the unit, temperature adjustment, and other functions.

[0074] When the internal temperature of the inner liner assembly 2 is higher than the preset value or the battery power of 8 is lower than the preset value, the speaker 6 will emit an alarm sound. For example, when the internal temperature of the inner liner is higher than the preset value (about 6 degrees), the processing chip will cause the speaker 6 to emit an alarm sound; when the battery power of 8 is lower than the preset value (about 20%), the processing chip will cause the speaker 6 to emit an alarm sound, thereby promptly reminding the user of any abnormal situation and allowing for timely handling, such as timely replacement or charging of the battery 8.

[0075] The temperature sensor 10 can be located on the outside of the inner liner 21, with the probe in contact with the wall of the inner liner 21, and can detect the wall temperature of the inner liner 21. Alternatively, the probe of the temperature sensor 10 can be inserted into the interior of the inner liner 21 to detect the internal temperature of the inner liner 21.

[0076] refer to Figure 1 and Figure 3 The control board 7 is connected to the power port 9, which can be located on the control board 7. The power port 9 is used to connect to an external power source, which can be used to charge the battery 8 or to power the entire machine. Thus, power can be supplied by an external power source or the battery 8.

[0077] The above description only discloses some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A portable cooler box, characterized in that, include: The outer shell (1) includes a first cavity (1a), a second cavity (1b) and a third cavity (1c) arranged in sequence; The inner liner assembly (2) is located in the first cavity (1a); A heat dissipation component (4) is disposed in the second cavity (1b); A cooling assembly (3) is disposed between the inner liner assembly (2) and the heat dissipation assembly (4). The cooling assembly (3) includes a semiconductor cooling chip (31) and a heat-conducting component (32). One side of the heat-conducting component (32) is connected to the semiconductor cooling chip (31), and the other side of the heat-conducting component (32) is connected to the inner liner assembly (2). Battery (8) is located in the third cavity (1c); The first cavity (1a) is provided with a first cover (15) at the end away from the second cavity (1b); the third cavity (1c) is provided with a second cover (16); This refrigerator can be placed horizontally or vertically.

2. The portable refrigerator box according to claim 1, characterized in that, The first cavity (1a) and the second cavity (1b) are separated by a first support (13); The first bracket (13) is provided with a heat insulation plate (17) on the side near the second cavity (1b), and the heat insulation plate (17) is provided with a groove (170) that can accommodate the semiconductor cooling chip (31); The first bracket (13) has a cooling component (32) on the side near the first cavity (1a).

3. The portable cooler of claim 1, wherein, The inner liner assembly (2) includes an inner liner body (21); The cooling element (32) is in contact with the inner liner (21), and the cooling element (32) extends at least partially into the interior of the inner liner (21).

4. The portable cooler of claim 3, wherein, The inner liner assembly (2) includes a first insulation cotton layer (22) and a sealing layer (23), and the outer periphery of the inner liner body (21) is provided with the first insulation cotton layer (22) and the sealing layer (23) in sequence; The first insulation layer (22) is made of EVA material; The sealing layer (23) is made of aluminum foil or self-adhesive tape.

5. The portable cooler of any one of claims 1 to 4, wherein, It also includes a first support (13) and a second support (14); The first bracket (13) is provided with a first protruding edge (131), which is sleeved on one end of the inner liner assembly (2); The second bracket (14) is provided with a second protruding edge (141), which is sleeved on one end of the inner liner assembly (2).

6. The portable cooler of claim 1, wherein, The heat dissipation assembly (4) includes a fan (41) and a heat sink (42); The third cavity (1c) is provided with an air inlet (181) and an air outlet (182) arranged opposite to each other; wherein the air inlet (181) corresponds to the fan (41).

7. The portable cooler of claim 1, wherein, The inner side of the first cover (15) is provided with a second insulation cotton layer (151).

8. The portable cooler of claim 1, wherein, It also includes a display screen (5), a speaker (6), and an electronic control board (7); The display screen (5) can display temperature and battery level; When the internal temperature of the inner liner assembly (2) is higher than a preset value or the battery (8) charge is lower than a preset value, the horn (6) emits an alarm sound.

9. A portable refrigerator box according to claim 8, characterized in that, The control board (7) is located in the third cavity (1c) and is connected to the power port (9).