Light luggage refrigerator convenient to carry outdoors

Abstract

The invention discloses a light luggage refrigerator convenient to carry outdoors. The light luggage refrigerator 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 box cover covers the inner container and the heat preservation layer to seal the freezing cavity, and one side of the box cover is rotationally connected with the outer skin layer; the straps are arranged on the outer skin layer and used for being carried by a user, so that the inner container, the heat preservation layer and the bottom support assembly form a whole in the wrapping state of the outer skin layer, the overall structure of the luggage refrigerator is simplified, meanwhile, a metal shell is replaced with the outer skin layer, the overall weight of the luggage refrigerator is greatly reduced, and outdoor carrying and moving are convenient.

Description

[Technical field]

[0001] The invention relates to the field of refrigerators and bags, and in particular to a lightweight bag refrigerator that is easy to carry outdoors. [Background Technology]

[0002] Outdoor mountaineering and camping have become the first choice for many consumers, and they will carry food to enjoy during outdoor travel. Limited by the functions of ordinary outdoor backpacks, the food that consumers carry is often limited to baked goods, dairy products, beverages, etc. They cannot carry frozen food or ingredients, which will undoubtedly reduce the dining experience of outdoor activities. Therefore, how to keep the freshness of ingredients 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, on the basis of carrying a certain amount of food, how to design a lightweight and portable refrigeration bag, and how to reduce the weight while ensuring the refrigeration effect are the technical problems to be solved in this project.

[0003] Currently, there are refrigeration backpacks on the market. The most common method is to use ice packs to maintain a short-term low temperature state, and the low temperature effect is not good. There are also thermal insulation boxes, such as takeout boxes, which are light in weight and mainly use thermal insulation ice packs to achieve a low temperature effect for a period of time, but they cannot maintain a stable low temperature state for a long time, and the thermal insulation performance is limited, making it difficult to keep food and beverages fresh and frozen for a long time in outdoor environments. There are also refrigeration bags that use semiconductor condensation plates for refrigeration, but the semiconductor refrigeration efficiency is low and the refrigeration temperature range is limited. Other refrigeration equipment with good refrigeration effects, such as car refrigerators, use compressor refrigeration methods, which generally have higher refrigeration efficiency and can achieve a larger temperature difference, but car refrigerators are mostly made of metal or heavy materials, resulting in a large overall weight, which is not conducive to users carrying and moving. Therefore, the existing luggage and bags in the above market cannot meet the requirements of maintaining low temperature, freshness and freezing effects of food in outdoor activities and lightweight design. This project is based on this. [Summary of the invention]

[0004] The present invention overcomes the shortcomings of the prior art and provides a lightweight luggage refrigerator that is easy to carry outdoors, thereby reducing the overall weight of the refrigerator and making it easy to carry and move.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A lightweight luggage refrigerator that is easy to carry outdoors, characterized in that:

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

[0008] A thermal insulation layer, which is sleeved on the outer surface of the inner liner;

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

[0010] A refrigeration component is arranged 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] A box cover is covered on the inner container and the insulation layer to seal the freezing chamber, and one side of the box cover is rotatably connected to the outer skin layer;

[0013] The shoulder strap is arranged on the outer layer for the user to carry the backpack.

[0014] The lightweight luggage refrigerator that is easy to carry outdoors as described above is characterized in that the inner liner is a plastic liner, the insulation layer is a polyurethane foam layer, the outer skin layer is a polyurethane outer skin layer, and the box cover is a polyurethane box cover.

[0015] The lightweight luggage refrigerator that is easy to carry outdoors is characterized in that: the refrigeration component includes

[0016] an evaporator, the evaporator is in contact with the inner tank;

[0017] A compressor is disposed in the accommodating chamber, and an input end of the compressor is connected to one end of the evaporator;

[0018] The condenser is arranged in the accommodating cavity, and two ends of the condenser are respectively connected with the other end of the evaporator and the output end of the compressor;

[0019] A cooling fan is connected to the condenser.

[0020] The lightweight luggage refrigerator that is easy to carry outdoors as described above is characterized in that the evaporator is arranged on the outer side of the inner container in a surrounding manner.

[0021] The lightweight luggage refrigerator that is easy to carry outdoors is characterized in that: the bottom bracket assembly includes

[0022] A bottom shell, wherein the accommodating cavity is arranged in the bottom shell, and a bottom shell air inlet hole and a bottom shell air outlet hole are arranged on the bottom surface of the bottom shell;

[0023] The outer skin layer bottom surface is provided with an outer skin layer air inlet hole and an outer skin layer air outlet hole at positions corresponding to the bottom shell air inlet hole and the bottom shell air outlet hole.

[0024] The lightweight luggage refrigerator that is easy to carry outdoors is characterized in that: the bottom bracket assembly includes

[0025] 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 inner bottom surface of the bottom shell.

[0026] A lightweight luggage refrigerator that is easy to carry outdoors 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 faces the side where the air outlet hole of the bottom shell is set.

[0027] The lightweight luggage refrigerator that is easy to carry outdoors 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.

[0028] The lightweight luggage refrigerator that is easy to carry outdoors as described above is characterized in that a plurality of support frame bending parts extending outwardly to press against the inner side of the bottom shell are provided on the side of the support frame.

[0029] A lightweight luggage refrigerator that is easy to carry outdoors as described above is characterized in that: a supporting bracket includes a bracket base, a plurality of supporting rod groups are arranged on the bracket base, the supporting rod group consists of two supporting rods, and a supporting 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 supporting rods on the supporting rod group, and the supporting frame bending parts are arranged at both ends of the supporting frame.

[0030] The lightweight luggage refrigerator that is easy to carry outdoors 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 arranged on the partition plate.

[0031] The lightweight luggage refrigerator that is easy to carry outdoors 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.

[0032] The lightweight luggage refrigerator that is easy to carry outdoors as described above is characterized in that an inner liner flange bent outward is provided at the opening end of the inner liner, and the bottom surface of the inner liner flange contacts the side surface of the opening end of the insulation layer.

[0033] The lightweight luggage refrigerator that is easy to carry outdoors as described above is characterized in that a sealing zipper is provided between the lid and the outer layer.

[0034] The lightweight luggage refrigerator that is easy to carry outdoors as described above is characterized in that a sealing component is provided between the lid and the outer layer.

[0035] The lightweight luggage refrigerator that is easy to carry outdoors 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.

[0036] The lightweight luggage refrigerator that is easy to carry outdoors as described above is characterized in that a touch panel component that passes through the outer skin layer and is used to set and display the temperature is provided on the lower side of the front side of the bottom shell.

[0037] The beneficial effects of the present invention are:

[0038] 1. The present invention 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 in the state of being covered by the outer skin layer, thereby simplifying the overall structure of the luggage refrigerator. At the same time, light materials such as a plastic inner liner, a polyurethane foam layer, a polyurethane outer skin layer and a polyurethane box cover are adopted, and the outer skin layer is used instead of a metal shell, thereby greatly reducing the overall weight of the luggage refrigerator, making it convenient to carry and move outdoors.

[0039] 2. The present invention is provided 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.

[0040] 3. The present invention arranges 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, thereby ensuring the heat preservation effect and heat preservation durability of the luggage refrigerator.

[0041] 4. The present invention is provided with a touch panel assembly, and the touch panel is used for temperature adjustment, so that the user can set the desired temperature intuitively and quickly. [Drawings]

[0042] Figure 1 It is one of the structural schematic diagrams of the preferred embodiment of the present invention;

[0043] Figure 2 This is a second structural diagram of a preferred embodiment of the present invention;

[0044] Figure 3 It is a structural exploded view of a preferred embodiment of the present invention;

[0045] Figure 4 It is a schematic diagram of a bottom shell separation state of a bottom bracket assembly according to a preferred embodiment of the present invention;

[0046] Figure 5 This is a schematic diagram of the insulation layer separation state of a preferred embodiment of the present invention;

[0047] Figure 6 This is a schematic diagram of the assembly state of the bottom bracket assembly and the refrigeration assembly according to a preferred embodiment of the present invention;

[0048] Figure 7 It is an exploded view of the bottom support assembly and the refrigeration assembly of the preferred embodiment of the present invention;

[0049] Figure 8 This is the third structural schematic diagram of the preferred embodiment of the present invention. [Specific implementation method]

[0050] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings.

[0051] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the 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 used for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "preferred" or "sub-preferred" may explicitly or implicitly include at least one such feature.

[0052] like Figure 1-8 As shown, a lightweight luggage refrigerator that is easy to carry outdoors includes

[0053] The inner container 1 is provided with at least one freezing chamber 101;

[0054] The thermal insulation layer 2 is sleeved on the outer surface of the inner liner 1;

[0055] A bottom bracket assembly 3, which is disposed at the bottom of the inner liner 1, and has a receiving cavity 301 therein;

[0056] A refrigeration component 4, which is disposed in the accommodating cavity 301 and refrigerates the freezing cavity 101 of the inner container 1;

[0057] An outer skin layer 5, the outer skin layer 5 is sleeved on the outer sides of the thermal insulation layer 2 and the bottom bracket assembly 3;

[0058] A box cover 6, the box cover 6 covers 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 layer 5;

[0059] The shoulder strap 11 is arranged on the outer skin layer 5 for the user to carry.

[0060] In this case, the outer skin layer 5 is coated on the outside of the insulation layer 2 and the bottom bracket assembly 4, so that the inner liner 1, the insulation layer 2 and the bottom bracket assembly 4 are formed into a whole under the coating of the outer skin layer 5, which simplifies the overall structure of the luggage refrigerator. At the same time, the outer skin layer 5 is used to replace the traditional metal, which greatly reduces the weight of the luggage refrigerator. On the other hand, the inner liner 1 is a plastic inner liner, the insulation 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. By using the above-mentioned lightweight materials, the weight of the luggage refrigerator is further reduced, and the luggage refrigerator is lightweight, which is easy to carry and move.

[0061] In this case, the plastic inner liner makes the inner liner lightweight, impact-resistant, durable and waterproof; the polyurethane foam layer makes the insulation layer lightweight and highly heat-insulating, ensuring that the food and beverages in the freezing chamber of the inner liner remain at a low temperature for a long time; the polyurethane outer layer makes the outer layer waterproof and wear-resistant, protecting the internal insulation layer and the bottom bracket assembly; the polyurethane box cover makes the box cover lightweight, heat-insulating and durable, ensuring good insulation after the inner liner is closed to seal the freezing chamber.

[0062] 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.

[0063] like Figure 4-8 As shown, the refrigeration assembly 4 includes

[0064] An evaporator 401, the evaporator 401 is in contact with the inner container 1;

[0065] A compressor 402, wherein 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;

[0066] Condenser 403, condenser 403 is disposed in the accommodating chamber 301, and two ends of condenser 403 are respectively connected with the other end of evaporator 401 and the output end of compressor 402;

[0067] The cooling fan 404 is connected to the condenser 403 .

[0068] In this case, the evaporator 401 is in contact with the outer wall of the inner tank 1 to achieve cooling of the freezing chamber 101, and the evaporator 401 is arranged around the outer wall of the inner tank 1, which increases the contact area between the two and greatly improves the cooling effect of the freezing chamber 101. Similarly, this case can also use plate and tube cooling, inflation cooling or air cooling to achieve cooling of the freezing chamber of the inner tank.

[0069] In this case, the heat dissipation fan 404 is provided to 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.

[0070] like Figure 2-7 As shown, the bottom bracket assembly 3 includes

[0071] The bottom shell 302, the accommodating cavity 301 is arranged in the bottom shell 302, the bottom surface of the bottom shell 302 is provided with a bottom shell air inlet hole 3011 and a bottom shell air outlet hole 3012, and the bottom surface of the outer skin layer 5 is provided with an outer skin layer air inlet hole 501 and an outer skin layer air outlet hole 502 at positions corresponding to the bottom shell air inlet hole 3011 and the bottom shell air outlet hole 3012;

[0072] A support bracket 303, 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;

[0073] The compressor 402 and the condenser 403 are fixed on the support bracket 303 respectively, 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 arranged toward the bottom shell air outlet hole 3012.

[0074] like Figure 4-7 As shown, the thermal insulation layer 2 includes a side layer and a bottom layer, and the upper end of the support bracket 303 is embedded in the thermal 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 thermal 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.

[0075] 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, so that the inner liner 1, the insulation layer 2 and the bottom shell 302 are connected as a whole, and the compressor 402, the condenser 403 and the cooling fan 404 are fixed to the bottom shell 302 through the bracket base 3031; on the other hand, the support frame bending part 3035 of the bottom bracket assembly 3 is pressed against the inner wall of the bottom shell 302 to open the bottom shell 302 from the inside, ensuring that the bottom shell 302 will not deform, and also ensuring that the outer skin layer 5 is opened. In this case, the bottom shell 302 is a plastic bottom shell, and the bottom bracket assembly 3 is connected by sheet metal rods, which effectively reduces the weight of the luggage refrigerator.

[0076] In this case, during the refrigeration operation, 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 hole 501 and the bottom shell air inlet hole 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 hole 3012 and the outer skin air outlet hole 502, thereby achieving heat dissipation for the compressor 402 and the condenser 403.

[0077] like Figure 4-7 As shown, a partition plate 304 is provided in the accommodating chamber 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. In this case, the partition plate 304 is provided to divide the accommodating chamber 301 into two independent chambers, and the bottom shell air inlet hole 3011 and the bottom shell air outlet hole 3012 are respectively provided on the two independent chambers. During the heat dissipation process, air enters an independent chamber of the accommodating chamber 301 through the bottom shell air inlet hole 3011. Under the action of the heat dissipation fan 404, the air dissipates heat for the compressor 402 and the condenser 403, and then passes through the partition plate 304 into the independent chamber on the other side of the accommodating chamber 301, and is finally discharged from the bottom shell air outlet hole 3012, thereby improving the heat dissipation effect.

[0078] like Figure 2 As shown, the bottom surface of the outer skin layer 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 after the luggage refrigerator is placed on the ground, a gap can be set between the luggage refrigerator and the ground, so that the outside air can enter and exit the accommodating cavity 301 for heat dissipation.

[0079] like Figure 3 As shown, the box cover 6 is independently provided, and the box cover 6 closes the inner liner 1 after covering the open end of the inner liner 1. In this case, a sealing zipper, an EVA sealing strip, or a Velcro fastener or other sealing components can be provided between the box cover 6 and the outer skin layer 5, so that the box cover 6 is closely attached to the open end of the inner liner 1, and the sealing between the box cover 6 and the inner liner 1 is improved, thereby improving the refrigeration effect of the freezing chamber 101. At the same time, in this case, a sealing ring can also be provided between the box cover 6 and the inner liner 1 to further improve the refrigeration effect of the freezing chamber 101.

[0080] like Figure 4-5 As shown, the open end of the liner 1 is provided with an outwardly bent liner flange 102, and the bottom surface of the liner flange 102 contacts the side surface of the open end of the thermal insulation layer 2. In this case, the inner cavity of the thermal insulation layer 2 is sealed by the liner flange 102 to reduce the leakage of cooling air outward, and better fix the thermal insulation layer 2. At the same time, the sealing components such as the sealing zipper can be opened, so that the box cover 6 fits the open end of the liner 1 more closely.

[0081] like Figure 1As shown, a touch panel assembly 10 for setting and displaying temperature is provided on the lower side of the front side of the bottom shell 302, which passes through the outer skin layer 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.

[0082] like Figure 1 As shown, a locking assembly 8 for fixing an external battery is provided on the outside of the outer skin layer 5. In this case, the locking assembly 8 can be an elastic thread, a receiving bag or a buckle, which is used to hold or hang and fix the external battery. A power supply interface 9 is provided on one side of the bottom shell 302, which passes through the outer skin layer 5 and is electrically connected to the external battery for supplying power to the refrigeration assembly 4. In this case, the external battery is connected to the power supply interface 9 through a connecting line to supply power to the internal electrical components of the luggage refrigerator.

[0083] like Figure 1 and Figure 8 As shown, in this case, a chest strap 12 and a waist strap 13 are provided on the rear side of the outer layer 5, so that the luggage refrigerator can 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, side pockets 15 are provided on the side of the outer layer 5 for placing small objects; in this case, luggage buckles 16 are 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.

[0084] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, 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 that is easy to carry outdoors, characterized by: Included 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) being arranged at the bottom of the inner liner (1), and a receiving cavity (301) being arranged in the bottom bracket assembly (3); A refrigeration component (4), the refrigeration component (4) is arranged in the accommodating cavity (301) and refrigerates 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); A box cover (6), the box cover (6) covers 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 skin layer (5); A shoulder strap (11) is arranged on the outer skin layer (5) for a user to carry.

2. A lightweight luggage refrigerator that is easy to carry outdoors according to claim 1, characterized in that: The inner liner (1) is a plastic inner liner, the heat-insulating layer (2) is a polyurethane foaming 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 that is easy to carry outdoors according to claim 1 is characterized by: The refrigeration assembly (4) comprises An evaporator (401), the evaporator (401) is 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); A condenser (403), 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); A cooling fan (404) is connected to the condenser (403).

4. A lightweight luggage refrigerator that is easy to carry outdoors 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 that is easy to carry outdoors according to claim 3 is characterized by: The bottom bracket assembly (3) includes A bottom shell (302), wherein the accommodating cavity (301) is arranged in the bottom shell (302), and a bottom shell air inlet hole (3011) and a bottom shell air outlet hole (3012) are arranged 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 that is easy to carry outdoors according to claim 5, characterized in that: The bottom bracket assembly (3) includes A support bracket (303), 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. A lightweight luggage refrigerator that is easy to carry outdoors 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 heat dissipation fan (404) is arranged toward the bottom shell air outlet hole (3012).

8. The lightweight luggage refrigerator that is easy to carry outdoors 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. A lightweight luggage refrigerator that is easy to carry outdoors 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 that is easy to carry outdoors according to claim 9, characterized in that: The support bracket (303) comprises a bracket base (3031), a plurality of support rod groups (3032) are arranged on the bracket base (3031), the support rod group (3032) is composed of two support rods (3033), a support frame (3034) embedded in the thermal 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 parts (3035) are arranged at both ends of the support frame (3034).

11. The lightweight luggage refrigerator that is easy to carry outdoors 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 arranged on the partition plate (304).

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

15. The lightweight luggage refrigerator that is easy to carry outdoors 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 that is easy to carry outdoors 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 that is easy to carry outdoors 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 the temperature.

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