A portable refrigerator for outdoor use

Abstract

The application relates to a portable refrigerator for outdoor use, belonging to the field of refrigerators, which comprises a box body, a containing cavity is formed in the box body, an inner container for containing food is arranged in the containing cavity, a cooling cavity is formed in the bottom wall of the containing cavity, the cooling cavity is used for containing cooling liquid, a semiconductor refrigerating sheet is arranged at the bottom of the box body, the semiconductor refrigerating sheet is used for refrigerating the cooling liquid, a cooling pipe is arranged on the inner wall of an energy storage cavity of the box body, a pump for guiding the cooling liquid into the cooling pipe is arranged in the cooling cavity; an energy storage cavity is formed in the inner side wall of the box body, and an ice bag is arranged in the energy storage cavity. The application has the effects of being convenient to carry and replacing the traditional compressor refrigeration.

Description

Technical Field

[0001] This application relates to the field of refrigeration equipment, and more particularly to a portable refrigerator for outdoor use. Background Technology

[0002] A refrigerator is a consumer product that maintains a constant low temperature to keep food or other items at a constant temperature. It contains a cabinet or box for freezing ice, and includes storage compartments.

[0003] During the hot summer months, many items require refrigeration, making refrigerators a popular appliance. However, most existing refrigerators use compressor cooling, resulting in large size and weight, making them inconvenient to carry when out and about. While insulated food containers are sometimes used for picnics, they only keep food warm, not cool it down, and food can still spoil over time. Therefore, designing a refrigerator that replaces compressor cooling and is also easy to carry is a pressing issue. Summary of the Invention

[0004] In order to design a portable refrigerator that can be easily carried and replace traditional compressor refrigeration, this application provides a portable refrigerator for outdoor use.

[0005] The portable refrigerator for outdoor use provided in this application adopts the following technical solution: A portable refrigerator for outdoor use includes a cabinet with a receiving cavity inside, in which an inner liner for holding food is placed. A cooling cavity is formed in the bottom wall of the receiving cavity for holding coolant. A semiconductor cooling chip is provided at the bottom of the cabinet for cooling the coolant. A cooling pipe is provided in the inner wall of the energy storage cavity of the cabinet, and a pump is provided in the cooling cavity to guide the coolant into the cooling pipe. An energy storage cavity is formed in the inner side wall of the cabinet, in which ice packs are placed.

[0006] By adopting the above technical solution, when the user uses the refrigerator, the semiconductor cooling chip can cool the coolant in the cooling chamber, the pump guides the coolant to the cooling pipe, the coolant cools the inner liner, the energy storage chamber can separate the inner liner from the inner wall of the refrigerator, and play a certain role in heat insulation. The ice pack, as a cold insulator, can cool the energy storage chamber. The ice in the ice pack melts and absorbs heat, thereby cooling the food in the inner liner and extending the cooling time of the refrigerator. Through the combination of coolant and ice pack, the refrigerator can have a strong cooling effect outdoors, thus replacing the traditional compressor refrigeration and making it easy to carry outdoors.

[0007] Optionally, there are multiple cooling pipes, which are radially distributed from the middle of the bottom of the receiving cavity.

[0008] By adopting the above technical solution, when the user uses the device, the refrigeration pipes are arranged radially to cover the inner liner, which uniformly cools the side walls of the inner liner and fully cools the inner liner, thus improving the food storage effect inside the inner liner.

[0009] Optionally, the cooling pipe includes a horizontal section, a first vertical section, and a second vertical section connected in sequence. The horizontal section is located at the bottom of the receiving cavity, the first vertical section extends upward along the inner wall of the receiving cavity to the top of the receiving cavity, and the second vertical section extends downward to the cooling cavity at the bottom of the housing.

[0010] By adopting the above technical solution, when the user uses the device, the coolant is pumped upward through the horizontal section to the first and second vertical sections. This allows the coolant in the cooling chamber to flow upward from the bottom and then back into the cooling chamber, causing the coolant to circulate repeatedly on the inner wall and bottom of the chamber. This allows the semiconductor cooling chip to cool the coolant and fully cool the inner liner, resulting in better food storage performance inside the inner liner.

[0011] Optionally, the second vertical portion of the refrigeration tube is vertically distributed along the inner wall of the energy storage cavity, and the second vertical portion of the refrigeration tube is used to refrigerate the ice pack.

[0012] By adopting the above technical solution, the ice pack can easily freeze inside the energy storage chamber when the user uses it, while continuously storing energy for the ice inside the ice pack, reducing the melting of the ice, thereby extending the use time of the ice pack and providing longer preservation time for food in the inner liner that is carried out.

[0013] Optionally, a support assembly is provided inside the ice pack to reduce deformation of the ice pack within the energy storage cavity. The support assembly includes a first support rod and a second support rod connected inside the ice pack. The first support rod is located on both symmetrical sides of the ice pack. Both the first and second support rods are hollow. Two first connecting rods are hinged to each end of the first support rod, and two second connecting rods are hinged to each end of the second support rod. The first and second connecting rods are arranged in a one-to-one correspondence. A connecting rod is hinged between the first and second connecting rods. The first support rod, the second support rod, and the connecting rod together form a square support frame. A limit rod is hinged to each connecting rod, and the end of the limit rod away from the connecting rod is fixed to the inner wall of the ice pack.

[0014] By adopting the above technical solution, when the user uses the ice pack, the support frame is used to support the inside of the ice pack, reducing the deformation of the ice pack due to the refrigerant inside. When the liquid refrigerant inside the ice pack freezes and expands, it can squeeze the first support rod and the second support rod inside the ice pack, causing the first support rod and the second support rod to move in opposite directions. The first support rod pulls the connecting rod through the first connecting rod, and the second support rod pulls the connecting rod through the second connecting rod. The first support rod and the second support rod lift the top and bottom of the ice pack, and at the same time drive the connecting rod to support the two sides perpendicular to the first support rod, reducing the deformation of the ice pack in the energy storage cavity, thereby making the ice blocks inside the ice pack more evenly distributed.

[0015] Optionally, the ice pack is provided with multiple connecting components; the connecting components include a first top rod and a second top rod fixedly connected to opposite sides inside the ice pack; one end of the first top rod is fixedly connected to the inner side wall of the ice pack, and the other end is fixedly connected to a limiting plate one, the limiting plate one extending out of the first top rod has a first clearance hole for the second top rod to pass through; one end of the second top rod is fixedly connected to the side wall of the ice pack, the other end is a free end and fixedly connected to a limiting plate two, the limiting plate two extending out of the second top rod has a second clearance hole for the first top rod to pass through; the overlapping part of the first top rod and the second top rod is jointly fitted with a return spring, one end of the return spring is fixedly connected to the limiting plate one, and the other end is fixedly connected to the limiting plate two.

[0016] By adopting the above technical solution, when the user uses the ice pack, the first and second push rods pull on both sides of the ice pack. The ice pack deforms due to the gravity of the refrigerant liquid inside. When the refrigerant inside the ice pack freezes and expands, the first push rod slides in the second clearance hole, and the second push rod slides in the first clearance hole, together squeezing the return spring. This provides a certain space for the ice expansion. When the ice melts, the tension of the return spring pushes the first and second push rods to return to their original positions, making it easy to remove the ice pack from the energy storage cavity.

[0017] Optionally, a corrugated buffer sleeve is fixedly connected to the inner side wall of the ice pack. One end of the corrugated buffer sleeve is closed, and the other end of the corrugated buffer sleeve is fixedly connected to the inner wall of the ice pack. Multiple buffer springs are fixedly connected inside the corrugated buffer sleeve, and the buffer springs are evenly distributed along the length direction of the corrugated buffer sleeve.

[0018] By adopting the above technical solution, the corrugated buffer sleeve can stretch and contract during use. After the ice expands, it compresses the corrugated buffer sleeve. The corrugated buffer sleeve provides space for the ice expansion inside the ice bag, thereby reducing the damage caused by the ice expansion to the ice bag. One end of the buffer spring is fixedly connected to the inner wall of the corrugated buffer sleeve, and the other end is fixedly connected to the inner wall of the ice bag. When the ice melts, the buffer spring is mainly used to reset the corrugated buffer sleeve.

[0019] Optionally, a telescopic rod is provided on one side of the outer wall of the box, and two fixed sleeves are fixedly connected to the outer wall of the box. The two symmetrical sides of the telescopic rod are slidably connected to the fixed sleeves. Universal wheels are provided at the four corners of the bottom of the box.

[0020] By adopting the above technical solution, when the user uses the omnidirectional wheels, it is easy to slide the box, and the telescopic rod is easy to move the box. When not sliding, it can slide into the fixed sleeve, which serves to store the telescopic rod.

[0021] Optionally, a solar panel is inserted into the side wall of the enclosure, which is used to power the semiconductor cooling chip; a solar photovoltaic panel is provided on the side wall of the enclosure, which is used to store electricity for the solar panel.

[0022] By adopting the above technical solution, when users use the device, solar energy is converted into electrical energy to charge the solar panel, extending the battery storage time of the solar panel, thereby extending the working time of the semiconductor refrigeration chip, and extending the cooling time of the coolant, thus increasing the outdoor cooling time.

[0023] Optionally, a hinge seat is fixedly connected to the side wall of the housing, and a rotating shaft is rotatably connected inside the hinge seat. A pull rod is fixedly connected to the rotating shaft, and the solar photovoltaic panel is hinged to the end of the pull rod away from the rotating shaft.

[0024] By adopting the above technical solution, when the user uses the solar photovoltaic panel, it can rotate around the hinge point between itself and the pull rod to adjust the angle of the solar photovoltaic panel according to the position of the sun. Pulling the pull rod around the pivot point between itself and the hinge seat can adjust the position of the solar photovoltaic panel so that the solar photovoltaic panel can fully absorb solar energy and convert solar energy into electrical energy to charge the solar panel.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. By having a cooling chamber at the bottom of the cabinet to hold coolant, and a semiconductor cooling chip at the bottom of the cabinet to cool the coolant, a cooling pipe is installed on the inner wall of the energy storage chamber of the cabinet, and a pump is installed in the cooling chamber to guide the coolant to the cooling pipe. An energy storage chamber is also opened on the inner side wall of the cabinet, and ice packs are placed in the energy storage chamber. The semiconductor cooling chip can cool the coolant in the cooling chamber, and the pump can guide the coolant to the cooling pipe. The coolant cools the inner liner. The energy storage chamber can separate the inner liner from the inner wall of the cabinet, which can play a certain role in heat insulation. The ice packs, as a cold insulator, can cool the energy storage chamber. The melting ice in the ice packs absorbs heat, thereby cooling the food in the inner liner and extending the cooling time inside the cabinet. Through the combination of coolant and ice packs, the refrigerator can have a strong cooling effect outdoors, thus replacing the traditional compressor refrigeration and making it easy to carry outdoors. 2. By providing a support component and a connecting component inside the ice pack, the support frame of the support component is used to support the inside of the ice pack, reducing the deformation of the ice pack due to the refrigerant inside. The first and second top rods of the connecting component pull the two sides of the ice pack, reducing the deformation of the ice pack due to the gravity of the refrigerant liquid inside or the deformation after freezing and expansion. 3. A solar panel is inserted into the side wall of the housing to power the semiconductor refrigeration chip; a solar photovoltaic panel is installed on the side wall of the housing to store electricity for the solar panel, converting solar energy into electrical energy to charge the solar panel, extending the storage time of the solar panel, thereby extending the working time of the semiconductor refrigeration chip, and extending the cooling time of the coolant, thus increasing the outdoor cooling time. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a cross-sectional view of an embodiment of this application; Figure 3 This is an exploded view created to highlight the inner liner and the cavity. Figure 4 This is a structural diagram designed to highlight the telescopic tie rod; Figure 5 This is a structural diagram designed to highlight the solar photovoltaic panel; Figure 6 This is a cross-sectional view of an ice pack; Figure 7 It's a picture of an ice pack exploding; Figure 8 yes Figure 7 Enlarged view of part A; Figure 9 yes Figure 7 Enlarged view of part B; Figure 10 This is a structural diagram of the connecting components.

[0027] Explanation of reference numerals in the attached drawings: 1. Cabinet; 11. Receiving cavity; 12. Inner liner; 13. Cabinet door; 131. Hinge; 132. Fastener; 14. Casters; 15. Heat dissipation cavity; 151. Semiconductor cooling chip; 152. Heat dissipation vent; 153. Fan; 16. Cooling pipe; 161. Horizontal section; 162. First vertical section; 163. Second vertical section; 17. Cooling cavity; 18. Telescopic rod; 181. Fixing sleeve; 19. Solar panel; 2. Solar photovoltaic panel; 21. Hinge seat; 22. Rotating shaft; 23. 3. Pull rod; 4. Energy storage chamber; 5. Ice pack; 6. Support assembly; 7. First support rod; 8. Second support rod; 9. First connecting rod; 10. Second connecting rod; 11. Connecting rod; 12. Hinge shaft; 13. Limiting rod; 14. Connecting assembly; 15. First top rod; 16. Limiting plate one; 17. First clearance hole; 18. Second top rod; 19. Limiting plate two; 20. Second clearance hole; 21. Return spring; 22. Corrugated buffer sleeve; 23. Buffer spring. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1-10 This application will be described in further detail.

[0029] This application discloses a portable refrigerator for outdoor use, referring to... Figure 1 and Figure 2 The container includes a body 1, which has a receiving cavity 11. An inner liner 12 is placed inside the receiving cavity 11 for storing food requiring refrigeration. A door 13 is located on the top of the body 1. One side of the door 13 is hinged to the body 1 via a hinge 131, and the other side is secured to the body 1 via a latch 132. The latch 132 facilitates the fixing and opening of the door 13 to the body 1. Universal wheels 14 are located at the four corners of the bottom of the body 1, allowing for easy sliding and movement of the body 1. A heat dissipation cavity 15 is located at the bottom of the body 1. A cooling chamber 17 is provided at the bottom of the receiving cavity 11. The cooling chamber 17 is used to hold coolant and is equipped with a pump. A thermoelectric cooler 151 is fixedly connected to the inner bottom wall of the heat dissipation cavity 15. The thermoelectric cooler 151 is used to cool the coolant in the cooling chamber 17. Heat dissipation vents 152 are fixedly connected to the symmetrical sides of the heat dissipation cavity 15. The heat dissipation vents 152 are used to dissipate heat from the thermoelectric cooler 151. A fan 153 is fixedly connected to the bottom of the heat dissipation cavity 15. The fan 153 can increase the air circulation, thereby improving the heat dissipation effect of the thermoelectric cooler 151.

[0030] Reference Figure 2 and Figure 3Multiple cooling pipes 16 are fixedly connected to the inner wall of the receiving cavity 11. The cooling pipes 16 are radially distributed from the middle of the bottom of the receiving cavity 11. Each cooling pipe 16 includes a horizontal part 161, a first vertical part 162, and a second vertical part 163 that are interconnected. The horizontal part 161 is located at the bottom of the receiving cavity 11, and one end of the horizontal part 161 is connected to the cooling cavity 17. The first vertical part 162 extends upward along the inner wall of the receiving cavity 11 to the top of the receiving cavity 11. The second vertical part 163 is connected to the first vertical part 162 and extends downward to the cooling cavity 17 at the bottom of the box 1, so that the coolant circulates back and forth on the inner wall and bottom of the receiving cavity 11 to cool the inner liner 12.

[0031] Reference Figure 4 A telescopic rod 18 is provided on one side of the outer wall of the housing 1. The telescopic rod 18 is U-shaped and facilitates the sliding of the housing 1. Two fixed sleeves 181 are fixedly connected to the outer wall of the housing 1. The two symmetrical sides of the telescopic rod 18 are slidably connected to the fixed sleeves 181. A solar panel 19 is installed between the two fixed sleeves 181 in the housing 1. A socket is provided on the housing 1 for charging the solar panel 19 and for supplying power to the semiconductor cooling chip 151.

[0032] Reference Figure 5 A solar photovoltaic panel 2 is installed on the side of the housing 1 away from the solar panel 19. The solar photovoltaic panel 2 is used to charge the solar panel 19. A hinge seat 21 is fixedly connected to the side wall of the housing 1. The hinge seat 21 is located near the bottom of the side wall of the housing 1. A rotating shaft 22 is rotatably connected inside the hinge seat 21. A pull rod 23 is fixedly connected to the rotating shaft 22. The solar photovoltaic panel 2 is hinged to the end of the pull rod 23. The solar photovoltaic panel 2 can be rotated around the hinge point between itself and the pull rod 23 to adjust the angle of the solar photovoltaic panel 2 according to the position of the sun. Pulling the pull rod 23 to rotate around the rotating shaft 22 between itself and the hinge seat 21 is used to adjust the position of the solar photovoltaic panel 2 so that the solar photovoltaic panel 2 can fully absorb solar energy and convert solar energy into electrical energy to charge the solar panel 19.

[0033] Looking back Figure 2 In order to achieve better cooling effect for the inner liner 12 and to store the inner liner 12 at low temperature, energy storage cavities 3 are provided on the side walls of the box body 1. The energy storage cavities 3 extend downward from the top of the box body 1. The energy storage cavities 3 can separate the inner liner 12 from the inner wall of the box body 1, and play a certain role in heat preservation.

[0034] In addition, refer to Figure 2 and Figure 6The energy storage cavity 3 is used to hold the ice pack 4. The ice pack 4 acts as a coolant to cool the inside of the energy storage cavity 3. The ice in the ice pack 4 melts and absorbs heat, thereby cooling the food inside the inner liner 12. The second vertical part 163 of the cooling pipe 16 extends downward along the inner wall of the energy storage cavity 3 into the cooling cavity. The second vertical part 163 of the cooling pipe 16 is used to cool the ice pack 4, which facilitates the freezing of the ice pack 4 inside the energy storage cavity 3. At the same time, it continuously stores energy for the ice in the ice pack 4, reduces the melting of the ice, and thus extends the usage time of the ice pack 4. It has a better cooling effect on the food inside the inner liner 12 that is carried out.

[0035] Reference Figure 6 After the ice pack 4 is placed into the energy storage cavity 3, the liquid refrigerant inside the ice pack 4 causes the bottom of the ice pack 4 to be larger than the top. When the ice pack 4 freezes, the ice is unevenly distributed within the energy storage cavity 3. To prevent uneven ice distribution, a support component 41 is installed inside the ice pack 4. The support component 41 is used to reduce deformation of the ice pack 4 within the energy storage cavity 3. (Refer to...) Figure 7 and Figure 8 The support assembly 41 includes a first support rod 411 and a second support rod 412 connected inside the ice pack 4. The first support rod 411 is located near the top of the ice pack 4, and the second support rod 412 is located near the bottom of the ice pack 4. Both the first support rod 411 and the second support rod 412 are horizontally arranged. Both the first support rod 411 and the second support rod 412 are hollow. Two first connecting rods 413 are hinged to both ends of the first support rod 411, and two second connecting rods 414 are hinged to both ends of the second support rod 412. The first connecting rods 413 and the second connecting rods 414 are arranged in a one-to-one correspondence. A connecting rod 415 is hinged between the first connecting rods 413 and the second connecting rods 414, that is, two connecting rods 415 are respectively provided at both ends of the first support rod 411 and the second support rod 412. The first support rod 411, the second support rod 412 and the connecting rod 415 together form a square support frame, which is used to support the interior of the ice pack 4 and reduce the deformation of the ice pack 4 due to the refrigerant inside.

[0036] Looking back Figure 6 A hinge shaft 416 is fixedly connected to the first connecting rod 413. The hinge shaft 416 passes through the first support rod 411 and is rotatably connected to the first support rod 411. The hinge shaft 416 serves as the hinge point for the rotation of the first connecting rod 413 and also provides guidance and support for the first support rod 411, reducing the deformation of the first support rod 411 due to compression after freezing. Similarly, the second connecting rod 414 and the second support rod 412 are provided with hinge shafts 416 with the same structure, which will not be described in detail here.

[0037] Among them, reference Figure 9Each connecting rod 415 is hinged with a limiting rod 417. The figure shows that the limiting rod 417 is hinged to the middle of the connecting rod 415, but it is not limited to the middle position. One end of the limiting rod 417 is hinged to the connecting rod 415, and the other end is fixedly connected to the inner wall of the ice pack 4. When the liquid refrigerant in the ice pack 4 freezes and expands, it can squeeze the first support rod 411 and the second support rod 412 in the ice pack 4, causing the first support rod 411 and the second support rod 412 to move in opposite directions. The first support rod 411 pulls the connecting rod 415 through the first connecting rod 413, and the second support rod 412 pulls the connecting rod 415 through the second connecting rod 414. The first support rod 411 and the second support rod 412 lift the top and bottom of the ice pack 4, and at the same time drive the connecting rod 415 to support the two sides perpendicular to the first support rod 411, reducing the deformation of the ice pack 4 in the energy storage cavity 3, thereby making the ice in the ice pack 4 more evenly distributed.

[0038] In addition, refer to Figure 6 and Figure 10 The ice pack 4 is provided with multiple connecting components 42, which are evenly distributed within the ice pack 4. Each connecting component 42 includes a first push rod 421 fixedly connected to the inner wall of the ice pack 4. One end of the first push rod 421 is fixedly connected to the inner wall of the ice pack 4, and the other end is fixedly connected to a limiting plate 422. The limiting plate 422 extends beyond one end of the first push rod 421 and has a first clearance hole 423. The connecting component 42 also includes a second push rod 424 fixedly connected within the ice pack 4. The second push rod 424 is located on the side of the ice pack 4 opposite to the first push rod 421, and one end of the second push rod 424 is fixedly connected to the ice pack 4. The side wall has a free end and is fixedly connected to a second limiting plate 425. The second limiting plate 425 extends to a second push rod 424, which has a second clearance hole 426 for the first push rod 421 to pass through. The second clearance hole 426 is used for the first push rod 421 to slide. The second push rod 424 passes through a first clearance hole 423, which is used for the second push rod 424 to slide. The overlapping part of the first push rod 421 and the second push rod 424 is fitted with a return spring 427. One end of the return spring 427 is fixedly connected to a first limiting plate 422, and the other end is fixedly connected to a second limiting plate 425.

[0039] The first push rod 421 and the second push rod 424 pull the two sides of the ice pack 4. The ice pack 4 deforms due to the gravity of the refrigerant liquid inside. When the refrigerant inside the ice pack 4 freezes and expands, the first push rod 421 slides in the second clearance hole 426 and the second push rod 424 slides in the first clearance hole 423, together squeezing the return spring 427, which can provide a certain space for the ice expansion. When the ice melts, the tension of the return spring 427 pushes the first push rod 421 and the second push rod 424 to return to their original positions, making it easy to remove the ice pack 4 from the energy storage cavity 3.

[0040] Looking back Figure 7 and Figure 8 A corrugated buffer sleeve 43 is fixedly connected to the top of the ice pack 4. The corrugated buffer sleeve 43 can stretch and contract. One end of the corrugated buffer sleeve 43 is closed, and the other end is open. The open end of the corrugated buffer sleeve 43 is fixedly connected to the inner wall of the ice pack 4 to prevent refrigerant from entering the corrugated buffer sleeve 43. After the ice expands, it compresses the corrugated buffer sleeve 43. The corrugated buffer sleeve 43 provides space for the ice expansion inside the ice pack 4, thereby reducing the damage caused by the ice expansion. Multiple buffer springs 431 are fixedly connected inside the corrugated buffer sleeve 43. The buffer springs 431 are evenly distributed along the length of the corrugated buffer sleeve 43. One end of the buffer spring 431 is fixedly connected to the inner wall of the corrugated buffer sleeve 43, and the other end is fixedly connected to the inner wall of the ice pack 4. When the ice melts, the buffer springs 431 are mainly used to reset the corrugated buffer sleeve 43.

[0041] The implementation principle of a portable refrigerator for outdoor use according to an embodiment of this application is as follows: Open the door 13, place the food to be carried into the inner liner 12, and then place an ice pack 4 into the energy storage cavity 3. The ice pack 4 is preferably frozen, but can also be liquid. The semiconductor cooling chip 151 operates, cooling the coolant in the cooling cavity 17. The coolant flows along the cooling pipes on the inner wall of the inner liner 12 and the inner wall of the energy storage cavity 3, cooling the inner liner 12. Simultaneously, it cools and stores energy for the ice pack 4, extending the melting time of the ice pack 4, thus improving the cooling effect on the inner liner 12. Furthermore, in sunny outdoor conditions, the solar photovoltaic panel 2 can store electricity in the battery panel 19, further extending the cooling time of the semiconductor cooling chip 151.

[0042] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A portable refrigerator for outdoor use, comprising a housing (1), wherein a receiving cavity (11) is provided inside the housing (1), and an inner liner (12) for holding food is placed inside the receiving cavity (11), characterized in that: The bottom wall of the receiving cavity (11) is provided with a cooling cavity (17), which is used to hold coolant. A semiconductor refrigeration chip (151) is provided at the bottom of the box body (1), which is used to cool the coolant. A refrigeration pipe (16) is provided on the inner wall of the energy storage cavity (3) of the box body (1). A pump is provided in the cooling cavity (17) to guide the coolant to the refrigeration pipe (16). An energy storage cavity (3) is provided on the inner side wall of the box (1), and an ice pack (4) is placed in the energy storage cavity (3); The ice pack (4) is provided with a support component (41), which is used to reduce the deformation of the ice pack (4) in the energy storage cavity (3); The support assembly (41) includes a first support rod (411) and a second support rod (412) connected inside the ice pack (4). The first support rod (411) is located on both sides of the ice pack (4) symmetrically. Both the first support rod (411) and the second support rod (412) are hollow. Two first connecting rods (413) are respectively hinged to both ends of the first support rod (411), and two second connecting rods (414) are respectively hinged to both ends of the second support rod (412). The first connecting rods (413) and the second connecting rods (414) are arranged in a one-to-one correspondence. A connecting rod (415) is hinged between the first connecting rods (413) and the second connecting rods (414). The first support rod (411), the second support rod (412) and the connecting rod (415) together form a square support frame. Each of the connecting rods (415) is hinged with a limiting rod (417), and the end of the limiting rod (417) away from the connecting rod (415) is fixed to the inner wall of the ice pack (4); The ice pack (4) is provided with multiple connecting components (42); The connecting assembly (42) includes a first top rod (421) and a second top rod (424) fixedly connected to opposite sides inside the ice pack (4); One end of the first push rod (421) is fixedly connected to the inner side wall of the ice pack (4), and the other end is fixedly connected to a limiting plate (422). The limiting plate (422) extends out of the first push rod (421) and has a first clearance hole (423) for the second push rod (424) to pass through. One end of the second push rod (424) is fixedly connected to the side wall of the ice pack (4), and the other end is a free end and is fixedly connected to a limiting plate (425). The limiting plate (425) extends out of the second push rod (424) and has a second clearance hole (426) for the first push rod (421) to pass through. The overlapping parts of the first push rod (421) and the second push rod (424) are jointly fitted with a return spring (427). One end of the return spring (427) is fixedly connected to the first limiting plate (422), and the other end is fixedly connected to the second limiting plate (425).

2. A portable refrigerator for outdoor use according to claim 1, characterized in that: The refrigeration pipes (16) are multiple and are radially distributed from the middle of the bottom of the receiving cavity (11).

3. A portable refrigerator for outdoor use according to claim 2, characterized in that: The refrigeration pipe (16) includes a horizontal part (161), a first vertical part (162) and a second vertical part (163) connected in sequence. The horizontal part (161) is located at the bottom of the receiving cavity (11). The first vertical part (162) extends upward along the inner wall of the receiving cavity (11) to the top of the receiving cavity (11). The second vertical part (163) extends downward to the cooling cavity (17) at the bottom of the box body (1).

4. A portable refrigerator for outdoor use according to claim 3, characterized in that: The second vertical part (163) of the refrigeration pipe (16) is vertically distributed along the inner wall of the energy storage cavity (3), and the second vertical part (163) of the refrigeration pipe (16) is used to refrigerate the ice pack (4).

5. A portable refrigerator for outdoor use according to claim 1, characterized in that: A corrugated buffer sleeve (43) is fixedly connected to the inner side wall of the ice pack (4). One end of the corrugated buffer sleeve (43) is closed, and the other end of the corrugated buffer sleeve (43) is fixedly connected to the inner wall of the ice pack (4). Multiple buffer springs (431) are fixedly connected inside the corrugated buffer sleeve (43), and the buffer springs (431) are evenly distributed along the length direction of the corrugated buffer sleeve (43).

6. A portable refrigerator for outdoor use according to claim 1, characterized in that: A telescopic rod (18) is provided on one side of the outer wall of the box (1). Two fixed sleeves (181) are fixedly connected to the outer wall of the box (1). The two sides of the telescopic rod (18) are symmetrically slidably connected to the fixed sleeves (181). The telescopic rod (18) is slidably connected to the fixed sleeves (181). Universal wheels (14) are provided at the four corners of the bottom of the box (1).

7. A portable refrigerator for outdoor use according to claim 1, characterized in that: A battery panel (19) is inserted into the side wall of the housing (1), and the battery panel (19) is used to supply power to the semiconductor cooling chip (151); The side wall of the box (1) is provided with a solar photovoltaic panel (2), which is used to store electricity for the battery panel (19).

8. A portable refrigerator for outdoor use according to claim 7, characterized in that: The side wall of the box (1) is fixedly connected to a hinge seat (21), and a rotating shaft (22) is rotatably connected inside the hinge seat (21). A pull rod (23) is fixedly connected on the rotating shaft (22), and the solar photovoltaic panel (2) is hinged to the end of the pull rod (23) away from the rotating shaft (22).

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