Lightweight luggage refrigerator

Abstract

The utility model discloses a light-weight luggage refrigerator which comprises an inner container, and at least one freezing cavity is formed in the inner container. The heat preservation layer is arranged on the outer side face of the inner container in a sleeving mode; the bottom support assembly is arranged at the bottom of the inner container, and a containing cavity is formed in the bottom support assembly; the refrigeration assembly is arranged in the containing cavity and refrigerates the freezing cavity of the inner container; the outer skin layer is arranged on the outer sides of the heat preservation layer and the bottom support assembly in a sleeving mode; the refrigerator cover covers the inner container and the heat preservation layer to seal the freezing cavity, one side of the refrigerator cover is rotationally connected with the outer skin layer, the outer skin layer wraps the outer sides of the heat preservation layer and the bottom support assembly, the inner container, the heat preservation layer and the bottom support assembly form a whole in the wrapping state of the outer skin layer, and the overall structure of the luggage refrigerator is simplified; meanwhile, a metal shell is replaced by the outer skin layer, so that the overall weight of the luggage refrigerator is greatly reduced, and outdoor carrying and moving are facilitated.

Description

[Technical field]

[0001] The utility model relates to the fields of refrigerators and bags, and in particular to a lightweight bag refrigerator. [Background Technology]

[0002] Outdoor mountaineering and camping have become the first choice for many consumers, and they often carry food to enjoy during outdoor trips. Due to the limitations of ordinary outdoor backpacks, the food that consumers carry is often limited to baked goods, dairy products, beverages, etc., and they cannot carry frozen foods or ingredients, which will undoubtedly reduce the dining experience of outdoor activities. Therefore, how to keep the freshness of food or the freezing effect of beverages outdoors has become a problem faced in current outdoor travel. In addition, outdoor sports consume a lot of physical energy, especially for women, and the food itself has a certain weight. Therefore, based on the need to carry a certain amount of food, how to design a lightweight and portable refrigeration bag and how to reduce the weight while ensuring the cooling effect are the technical problems to be solved in this project.

[0003] Currently available cooling backpacks on the market typically use ice packs to maintain a short-term low temperature, but this is not particularly effective. Other insulated boxes, such as takeout containers, are lightweight and primarily use insulated ice packs to maintain a short-term low temperature. However, these cannot maintain a stable low temperature over time, and their insulation performance is limited, making them ineffective in keeping food and drinks fresh and frozen for extended periods in outdoor environments. Other cooling packs utilize semiconductor condenser panels, but these are inefficient and have a limited temperature range. Other effective cooling devices, such as car refrigerators, use compressors. While these are generally more efficient and can achieve a wide temperature range, car refrigerators are often constructed of metal or heavy materials, resulting in a high overall weight and making them difficult to carry and move. Therefore, these existing types of bags and luggage fail to meet the requirements for maintaining food freshness and freezing at low temperatures while maintaining a lightweight design for outdoor activities. This project was developed based on these requirements. [Utility Model Content]

[0004] The utility model overcomes the deficiencies of the prior art and provides a lightweight luggage refrigerator, which reduces the overall weight of the refrigerator and is easy to carry and move.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A lightweight luggage refrigerator, characterized by:

[0007] An inner tank, wherein at least one freezing chamber is provided in the inner tank;

[0008] The thermal insulation layer is provided on the outer surface of the inner liner;

[0009] A bottom bracket assembly is arranged at the bottom of the inner container, and a receiving cavity is provided in the bottom bracket assembly;

[0010] A refrigeration component is disposed in the accommodating cavity and cools the freezing cavity of the inner container;

[0011] An outer skin layer, which is sleeved on the outer side of the thermal insulation layer and the bottom bracket assembly;

[0012] The box cover is closed on the inner container and the heat-insulating layer to seal the freezing cavity, and one side of the box cover is rotatably connected with the outer layer.

[0013] The lightweight luggage refrigerator as described above is characterized in that the inner liner is a plastic liner, the insulation layer is a polyurethane foam layer, the outer layer is a polyurethane outer layer, and the box cover is a polyurethane box cover.

[0014] The lightweight luggage refrigerator as described above is characterized in that: the refrigeration component includes an evaporator, and the evaporator is in contact with the inner container;

[0015] A compressor is disposed in the accommodating chamber, and an input end of the compressor is connected to one end of the evaporator;

[0016] The condenser is arranged in the accommodating cavity, and the two ends of the condenser are respectively connected with the other end of the evaporator and the output end of the compressor;

[0017] A cooling fan is connected to the condenser.

[0018] The lightweight luggage refrigerator as described above is characterized in that the evaporator is arranged around the outer surface of the inner container.

[0019] The lightweight luggage refrigerator as described above is characterized in that: the bottom bracket assembly includes

[0020] The bottom shell has an accommodating cavity provided in the bottom shell, and a bottom shell air inlet hole and a bottom shell air outlet hole provided on the bottom surface of the bottom shell;

[0021] An outer skin layer air inlet hole and an outer skin layer air outlet hole are respectively arranged on the bottom surface of the outer skin layer at positions corresponding to the bottom shell air inlet hole and the bottom shell air outlet hole.

[0022] The lightweight luggage refrigerator as described above is characterized in that: the bottom bracket assembly includes

[0023] The support bracket is arranged in the accommodating cavity, and the upper end of the support bracket contacts the bottom of the inner container, or the lower end of the support bracket contacts the bottom surface of the inner side of the bottom shell.

[0024] A lightweight luggage refrigerator as described above is characterized in that: the compressor and the condenser are respectively fixed on the supporting bracket, and the condenser is arranged in the accommodating cavity at a position between the air inlet hole and the air outlet hole of the bottom shell, and the air outlet end of the cooling fan is facing the side where the air outlet hole of the bottom shell is set.

[0025] The lightweight luggage refrigerator as described above is characterized in that the upper end of the support bracket is embedded in the insulation layer and contacts the bottom of the inner container.

[0026] The lightweight luggage refrigerator as described above is characterized in that a plurality of support frame bending portions extending outwards and pressing against the inner side surface of the bottom shell are provided on the side surface of the support frame.

[0027] A lightweight luggage refrigerator as described above is characterized in that: the support bracket includes a bracket base, a plurality of support rod groups are provided on the bracket base, the support rod group consists of two support rods, and a support frame embedded in the insulation layer and in contact with the bottom of the inner tank is connected between the upper ends of the two support rods on the support rod group, and the bending parts of the support frame are provided at both ends of the support frame.

[0028] The lightweight luggage refrigerator as described above is characterized in that a partition plate is provided in the accommodating cavity between the air inlet hole and the air outlet hole of the bottom shell, and the cooling fan is provided on the partition plate.

[0029] The lightweight luggage refrigerator as described above is characterized in that the bottom surface of the outer skin layer is provided with supporting feet connected to the bottom of the bottom shell.

[0030] The lightweight luggage refrigerator as described above is characterized in that an inner liner flange bent outward is provided at the open end of the inner liner, and the bottom surface of the inner liner flange contacts the side surface of the open end of the insulation layer.

[0031] The lightweight luggage refrigerator as described above is characterized in that a sealing zipper is provided between the box cover and the outer layer.

[0032] The lightweight luggage refrigerator as described above is characterized in that a sealing component is provided between the box cover and the outer layer.

[0033] The lightweight luggage refrigerator as described above is characterized in that a locking assembly for fixing an external battery is provided on the outside of the outer skin layer, and a power supply interface is provided on one side of the bottom shell that passes through the outer skin layer and is electrically connected to the external battery for supplying power to the refrigeration assembly.

[0034] The lightweight luggage refrigerator as described above is characterized in that a touch panel component is provided on the lower side of the front side of the bottom shell, which passes through the outer layer and is used to set and display the temperature.

[0035] The beneficial effects of the utility model are:

[0036] 1. The utility model sets a heat preservation layer on the outside of the inner liner, and sets a bottom bracket assembly on the bottom of the inner liner. Finally, the outer skin layer is covered on the outer side of the heat preservation layer and the bottom bracket assembly, so that the inner liner, the heat preservation layer and the bottom bracket assembly form a whole when covered by the outer skin layer, which simplifies the overall structure of the luggage refrigerator. At the same time, lightweight materials such as plastic inner liner, polyurethane foam layer, polyurethane outer skin layer and polyurethane box cover are used, and the outer skin layer is used instead of the metal shell, which greatly reduces the overall weight of the luggage refrigerator and facilitates outdoor carrying and movement.

[0037] 2. The utility model is equipped with a refrigeration component, which can continuously cool the inner tank, so that food and drinks can be kept at a low temperature for a long time, meeting the user's needs for refrigerated food during self-driving tours or outdoor activities. At the same time, the refrigeration component is arranged at the bottom of the luggage refrigerator, which can maximize the capacity of the inner tank and lower the overall center of gravity to prevent the luggage refrigerator from falling.

[0038] 3. The utility model sets a polyurethane foam layer on the outside of the inner liner, so that the foaming technology is applied to the inside of the luggage refrigerator to form an efficient heat insulation layer, ensuring the heat preservation effect and heat preservation durability of the luggage refrigerator.

[0039] 4. The utility model is provided with a touch panel component, which uses the touch panel to adjust the temperature, so that the user can set the required temperature intuitively and quickly. [Brief Description of the Drawings]

[0040] Figure 1 This is one of the structural diagrams of the preferred embodiment of the utility model;

[0041] Figure 2 This is the second structural diagram of the preferred embodiment of the utility model;

[0042] Figure 3 This is a structural exploded view of a preferred embodiment of the present utility model;

[0043] Figure 4 This is a schematic diagram of a bottom shell separation state of a bottom bracket assembly according to a preferred embodiment of the present invention;

[0044] Figure 5 This is a schematic diagram of the insulation layer separation state of the preferred embodiment of the utility model;

[0045] Figure 6 This is a schematic diagram of the assembly state of the bottom bracket assembly and the refrigeration assembly in a preferred embodiment of the present utility model;

[0046] Figure 7 This is an exploded view of the bottom bracket assembly and the refrigeration assembly of the preferred embodiment of the utility model;

[0047] Figure 8 This is the third structural diagram of the preferred embodiment of the utility model. [Specific implementation method]

[0048] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings.

[0049] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. In addition, the descriptions of "preferred", "sub-preferred", etc. in the present invention are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "preferred" or "sub-preferred" may explicitly or implicitly include at least one such feature.

[0050] like Figure 1-8 As shown, a lightweight luggage refrigerator includes

[0051] Inner container 1, at least one freezing chamber 101 is provided in the inner container 1;

[0052] The thermal insulation layer 2 is provided on the outer surface of the inner liner 1;

[0053] The bottom bracket assembly 3 is disposed at the bottom of the inner liner 1 and has an accommodating cavity 301 therein;

[0054] The refrigeration component 4 is disposed in the accommodating cavity 301 and cools the freezing cavity 101 of the inner container 1;

[0055] The outer skin layer 5 is sleeved on the outer sides of the thermal insulation layer 2 and the bottom bracket assembly 3;

[0056] The box cover 6 is covered on the inner container 1 and the insulation layer 2 to close the freezing chamber 101, and one side of the box cover 6 is rotatably connected to the outer skin 5.

[0057] In this case, the outer layer 5 is wrapped around the outside of the insulation layer 2 and the bottom bracket assembly 4, so that the inner liner 1, insulation layer 2, and bottom bracket assembly 4 form a single unit when covered by the outer layer 5. This simplifies the overall structure of the refrigerator. Furthermore, the outer layer 5 replaces traditional metal, significantly reducing the weight of the refrigerator. Furthermore, the inner liner 1 is made of plastic, the insulation layer 2 is a polyurethane foam layer, the outer layer 5 is a polyurethane outer layer, and the lid 6 is a polyurethane lid. The use of these lightweight materials further reduces the weight of the refrigerator, making it lightweight and easy to carry and move.

[0058] In this case, the plastic liner makes the liner lightweight, impact-resistant, durable and waterproof; the polyurethane foam layer makes the insulation layer lightweight and highly efficient insulated, ensuring that the food and beverages in the freezing chamber of the liner remain at a low temperature for a long time; the polyurethane outer layer makes the outer layer waterproof and wear-resistant, which can well protect the internal insulation layer and bottom bracket assembly; the polyurethane box cover makes the box cover lightweight, heat-insulating and durable, ensuring good insulation effect after the inner liner is closed to seal the freezing chamber.

[0059] In this case, the refrigeration component 4 is arranged in the bottom bracket component 3 at the bottom of the luggage refrigerator, which can maximize the capacity of the inner tank 1 and at the same time lower the overall center of gravity to prevent the luggage refrigerator from falling.

[0060] like Figure 4-8 As shown, the refrigeration component 4 includes

[0061] Evaporator 401, evaporator 401 is in contact with the inner container 1;

[0062] The compressor 402 is disposed in the accommodating chamber 301 , and the input end of the compressor 402 is connected to one end of the evaporator 401 ;

[0063] Condenser 403, condenser 403 is disposed in the accommodating chamber 301, and two ends of condenser 403 are respectively connected to the other end of evaporator 401 and the output end of compressor 402;

[0064] The cooling fan 404 is connected to the condenser 403 .

[0065] In this case, evaporator 401 contacts the outer wall of inner container 1 to cool freezing chamber 101. Evaporator 401 surrounds the outer wall of inner container 1, increasing the contact area between the two and significantly improving the cooling effect of freezing chamber 101. Similarly, this case can also utilize plate and tube cooling, inflation cooling, or air cooling to cool the freezing chamber of the inner container.

[0066] In this case, the provision of the cooling fan 404 can improve the heat dissipation effect of the condenser 403, thereby reducing the volume of the condenser 403 and reducing the overall volume of the luggage refrigerator.

[0067] like Figure 2-7 As shown, the bottom bracket assembly 3 includes

[0068] The bottom shell 302 and the accommodating cavity 301 are provided in the bottom shell 302. The bottom surface of the bottom shell 302 is provided with a bottom shell air inlet 3011 and a bottom shell air outlet 3012. The bottom surface of the outer skin layer 5 is provided with an outer skin layer air inlet 501 and an outer skin layer air outlet 502 at positions corresponding to the bottom shell air inlet 3011 and the bottom shell air outlet 3012.

[0069] The support bracket 303 is disposed in the accommodating cavity 301 , and the upper end of the support bracket 303 contacts the bottom of the inner container 1 , or the lower end of the support bracket 303 contacts the inner bottom surface of the bottom shell 302 ;

[0070] The compressor 402 and the condenser 403 are respectively fixed on the support bracket 303, and the condenser 403 is arranged in the accommodating cavity 301 between the bottom shell air inlet hole 3011 and the bottom shell air outlet hole 3012, and the air outlet end of the cooling fan 404 is set toward the bottom shell air outlet hole 3012.

[0071] like Figure 4-7 As shown, the insulation layer 2 includes a side layer and a bottom layer, and the upper end of the support bracket 303 is embedded in the insulation layer 2 and contacts the bottom of the inner liner 1; the side of the support bracket 303 is provided with a plurality of support bracket bent portions 3035 extending outward to press against the inner side of the bottom shell 302; the support bracket 303 includes a bracket base 3031, and the bracket base 3031 is provided with a plurality of support rod groups 3032, the support rod group 3032 is composed of two support rods 3033, and a support frame 3034 embedded in the insulation layer 2 and contacting the bottom of the inner liner 1 is connected between the upper ends of the two support rods 3033 on the support rod group 3032, and the support frame bent portions 3035 are arranged at both ends of the support frame 3034.

[0072] In this case, the support frame 3034 of the bottom bracket assembly 3 is embedded in the insulation layer 2 and supports the inner liner 1, connecting the inner liner 1, insulation layer 2, and bottom shell 302 into a single unit. The support base 3031 also secures the compressor 402, condenser 403, and cooling fan 404 to the bottom shell 302. Furthermore, the bent portion 3035 of the bottom bracket assembly 3 presses against the inner wall of the bottom shell 302, opening the bottom shell 302 from the inside, preventing deformation while also ensuring that the outer shell 5 is opened. In this case, the bottom shell 302 is made of plastic, and the bottom bracket assembly 3 is connected by sheet metal rods, effectively reducing the weight of the luggage refrigerator.

[0073] In this case, during the refrigeration process, the cooling fan 404 dissipates heat to the condenser 403. At this time, the outside air enters the accommodating chamber 301 from the outer skin air inlet 501 and the bottom shell air inlet 3011. The cooling fan 404 drives the air to pass through the compressor 402 and the condenser 403 to dissipate heat and then enter the other side of the accommodating chamber 301. Finally, it is discharged from the accommodating chamber 301 from the bottom shell air outlet 3012 and the outer skin air outlet 502, thereby realizing the heat dissipation of the compressor 402 and the condenser 403.

[0074] like Figure 4-7As shown, a partition plate 304 is provided within the accommodating chamber 301 between the bottom shell air inlet 3011 and the bottom shell air outlet 3012, and a cooling fan 404 is disposed on the partition plate 304. In this embodiment, the partition plate 304 divides the accommodating chamber 301 into two independent chambers, with the bottom shell air inlet 3011 and the bottom shell air outlet 3012 disposed in the two independent chambers, respectively. During the heat dissipation process, air enters one independent chamber of the accommodating chamber 301 through the bottom shell air inlet 3011. Under the action of the cooling fan 404, the air dissipates heat from the compressor 402 and condenser 403, then passes through the partition plate 304 and enters the independent chamber on the other side of the accommodating chamber 301. Finally, the air is discharged from the bottom shell air outlet 3012, thereby improving the heat dissipation effect.

[0075] like Figure 2 As shown, the bottom surface of the outer skin 5 is provided with support feet 7 connected to the bottom of the bottom shell 302. In this case, the support feet 7 are provided so that when the luggage refrigerator is placed on the ground, a gap can be set between the luggage refrigerator and the ground, allowing outside air to enter and exit the accommodating cavity 301 for heat dissipation.

[0076] like Figure 3 As shown, the lid 6 is provided separately and seals the inner liner 1 after being closed onto the open end of the inner liner 1. In this embodiment, a sealing component such as a sealing zipper, EVA sealing strip, or Velcro can be provided between the lid 6 and the outer layer 5 to tightly fit the lid 6 to the open end of the inner liner 1, thereby improving the sealing between the lid 6 and the inner liner 1 and thus enhancing the cooling effect of the freezing chamber 101. Furthermore, in this embodiment, a sealing ring can be provided between the lid 6 and the inner liner 1 to further enhance the cooling effect of the freezing chamber 101.

[0077] like Figure 4-5 As shown, the open end of the liner 1 is provided with an outwardly bent liner flange 102, the bottom surface of which contacts the side surface of the open end of the insulation layer 2. In this embodiment, the liner flange 102 seals the inner cavity of the insulation layer 2, reducing the leakage of cooling air and better securing the insulation layer 2. It also allows the sealing components such as the zipper to be opened, allowing the box cover 6 to fit more tightly against the open end of the liner 1.

[0078] like Figure 1 As shown, a touch panel assembly 10 for setting and displaying the temperature is provided on the lower side of the front side of the bottom shell 302 through the outer skin 5. In this case, the touch panel is used for temperature adjustment, and the user can intuitively set the temperature in the refrigerator, which is simple and quick to operate.

[0079] like Figure 1As shown, a locking assembly 8 is provided on the outside of the outer layer 5 to secure the external battery. In this embodiment, the locking assembly 8 can be an elastic cord, a pocket, or a buckle, used to hold or suspend the external battery. A power supply port 9 is provided on one side of the bottom shell 302, which passes through the outer layer 5 and electrically connects to the external battery for supplying power to the refrigeration assembly 4. In this embodiment, a connecting cable connects the external battery to the power supply port 9 to supply power to the internal electrical components of the luggage refrigerator.

[0080] like Figure 1 and Figure 8 As shown, in this case, a shoulder strap 11, a chest buckle 12 and a waist buckle 13 are provided on the rear side of the outer layer 5, which can enable the luggage refrigerator to be carried firmly on the user's back; in this case, a back pad 14 is provided on the rear side of the outer layer 5 to improve the comfort of carrying the backpack; in this case, a side pocket 15 is provided on the side of the outer layer 5 for placing small objects; in this case, a luggage buckle 16 is provided on the side of the outer layer 5 for lifting the luggage refrigerator or hanging small objects; in this case, a lid handle 17 is provided on the top surface of the lid 6 to facilitate opening the lid 6.

[0081] The above are only preferred embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the utility model concept, or directly or indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A lightweight luggage refrigerator, characterized by: Including An inner container (1), wherein at least one freezing chamber (101) is provided in the inner container (1); A heat-insulating layer (2), the heat-insulating layer (2) being sleeved on the outer surface of the inner liner (1); A bottom bracket assembly (3), the bottom bracket assembly (3) is arranged at the bottom of the inner container (1), and a receiving cavity (301) is provided in the bottom bracket assembly (3); A refrigeration component (4), the refrigeration component (4) is arranged in the accommodating cavity (301) and cools the freezing cavity (101) of the inner container (1); An outer skin layer (5), the outer skin layer (5) is sleeved on the outer side of the thermal insulation layer (2) and the bottom bracket assembly (3); The box cover (6) is covered on the inner container (1) and the heat-insulating layer (2) to seal the freezing chamber (101), and one side of the box cover (6) is rotatably connected to the outer layer (5).

2. The lightweight luggage refrigerator according to claim 1, characterized in that: The inner liner (1) is a plastic inner liner, the heat-insulating layer (2) is a polyurethane foam layer, the outer skin layer (5) is a polyurethane outer skin layer, and the box cover (6) is a polyurethane box cover.

3. The lightweight luggage refrigerator according to claim 1, characterized in that: Refrigeration assembly (4) includes an evaporator (401), the evaporator (401) being in contact with the inner container (1); A compressor (402), the compressor (402) is disposed in the accommodating chamber (301), and an input end of the compressor (402) is connected to one end of the evaporator (401); The condenser (403) is disposed in the accommodating chamber (301), and two ends of the condenser (403) are respectively connected to the other end of the evaporator (401) and the output end of the compressor (402); The cooling fan (404) is connected to the condenser (403).

4. The lightweight luggage refrigerator according to claim 3, characterized in that: The evaporator (401) is arranged around the outer surface of the inner container (1).

5. The lightweight luggage refrigerator according to claim 3, characterized in that: The bottom bracket assembly (3) includes A bottom shell (302), wherein the accommodating cavity (301) is provided in the bottom shell (302), and a bottom shell air inlet hole (3011) and a bottom shell air outlet hole (3012) are provided on the bottom surface of the bottom shell (302); An outer skin layer air inlet hole (501) and an outer skin layer air outlet hole (502) are respectively provided on the bottom surface of the outer skin layer (5) at positions corresponding to the bottom shell air inlet hole (3011) and the bottom shell air outlet hole (3012).

6. The lightweight luggage refrigerator according to claim 5, characterized in that: The bottom bracket assembly (3) includes The support bracket (303) is arranged in the accommodating cavity (301), and the upper end of the support bracket (303) contacts the bottom of the inner container (1), or the lower end of the support bracket (303) contacts the inner bottom surface of the bottom shell (302).

7. The lightweight luggage refrigerator according to claim 6, characterized in that: The compressor (402) and the condenser (403) are respectively fixed on the support bracket (303), and the condenser (403) is arranged in the accommodating cavity (301) at a position between the bottom shell air inlet hole (3011) and the bottom shell air outlet hole (3012), and the air outlet end of the cooling fan (404) is facing the side where the bottom shell air outlet hole (3012) is arranged.

8. The lightweight luggage refrigerator according to claim 6, characterized in that: The upper end of the support bracket (303) is embedded in the thermal insulation layer (2) and contacts the bottom of the inner container (1).

9. The lightweight luggage refrigerator according to claim 6 or 8, characterized in that: The side surface of the support bracket (303) is provided with a plurality of support bracket bent portions (3035) extending outwards to press against the inner side surface of the bottom shell (302).

10. The lightweight luggage refrigerator according to claim 9, characterized in that: The support bracket (303) includes a bracket base (3031), and a plurality of support rod groups (3032) are provided on the bracket base (3031). The support rod group (3032) consists of two support rods (3033). A support frame (3034) embedded in the insulation layer (2) and in contact with the bottom of the inner liner (1) is connected between the upper ends of the two support rods (3033) on the support rod group (3032), and the support frame bending portion (3035) is provided at both ends of the support frame (3034).

11. The lightweight luggage refrigerator according to claim 7, characterized in that: A partition plate (304) is provided in the accommodating cavity (301) between the bottom shell air inlet hole (3011) and the bottom shell air outlet hole (3012), and a heat dissipation fan (404) is provided on the partition plate (304).

12. The lightweight luggage refrigerator according to claim 5, characterized in that: The bottom surface of the outer skin layer (5) is provided with a supporting foot (7) connected to the bottom of the bottom shell (302).

13. The lightweight luggage refrigerator according to claim 1, characterized in that: The opening end of the inner liner (1) is provided with an inner liner flange (102) bent outward, and the bottom surface of the inner liner flange (102) is in contact with the side surface of the opening end of the thermal insulation layer (2).

14. The lightweight luggage refrigerator according to claim 1 or 13, characterized in that: A sealing zipper is provided between the box cover (6) and the outer layer (5).

15. The lightweight luggage refrigerator according to claim 14, characterized in that: A sealing component is provided between the box cover (6) and the outer skin layer (5).

16. The lightweight luggage refrigerator according to claim 1, characterized in that: A locking assembly (8) for fixing an external battery is provided on the outside of the outer skin layer (5), and a power supply interface (9) is provided on one side of the bottom shell (302) for passing through the outer skin layer (5) and electrically connecting to the external battery for supplying power to the refrigeration assembly (4).

17. The lightweight luggage refrigerator according to claim 1, characterized in that: A touch panel assembly (10) is provided on the lower side of the front side of the bottom shell (302) and passes through the outer skin layer (5) for setting and displaying temperature.

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