A heat preservation device and a terminal

Abstract

The application discloses a heat preservation device and a terminal, which comprise a containing box, an evaporator and a first heat preservation piece. The containing box is provided with a receiving cavity, and comprises a first box wall, the first box wall comprises a first inner shell and a first outer shell, a first gap is arranged between the first inner shell and the first outer shell, the evaporator is arranged in the first gap and is attached to the first inner shell. The material of the first heat preservation piece comprises foamed material and porous material, the first heat preservation piece is arranged in the first gap and is fixedly connected with the first inner shell, the first heat preservation piece covers the evaporator, and the part of the first heat preservation piece composed of the foamed material is in contact with the evaporator, and the thermal conductivity of the porous material is smaller than that of the foamed material. The foamed material in the first heat preservation piece plays a role of heat preservation and fixing the evaporator. The thickness of the first heat preservation piece is relatively low, the space occupied by the first heat preservation piece is reduced, the space reserved for the receiving cavity is increased, and the volume of the heat preservation device can be increased.

Description

Technical Field

[0001] This application relates to the field of heat preservation device technology, and in particular to a heat preservation device and terminal. Background Technology

[0002] Many end products, such as vehicles, are equipped with insulation devices. Typically, these devices require an insulation layer to maintain the temperature of items placed inside, preventing them from deteriorating or being damaged.

[0003] However, the current insulation layer is too thick and takes up too much space, resulting in a small internal space for the insulation device. Utility Model Content

[0004] This application provides a heat preservation device and terminal. The heat preservation device has a thinner heat preservation layer and a better heat preservation effect, which reduces the space occupied by the heat preservation layer and increases the internal space of the heat preservation device.

[0005] This application provides a heat-insulating device, comprising: a receiving box, an evaporator, and a first heat-insulating element. The receiving box has a receiving cavity and includes a first box wall. The first box wall includes a first inner shell and a first outer shell. The first inner shell faces the receiving cavity, and the first outer shell faces away from the receiving cavity. A first gap is formed between the first inner shell and the first outer shell. The evaporator is disposed within the first gap and is fitted to the first inner shell. The first heat-insulating element is made of a foamed material and a porous material. The first heat-insulating element is disposed within the first gap and fixedly connected to the first inner shell. The first heat-insulating element covers the evaporator, and the portion of the first heat-insulating element composed of foamed material is in contact with the evaporator. The porous material includes at least one of nanoporous material and microporous material. The thermal conductivity of the porous material is lower than that of the foamed material.

[0006] The evaporator contains the refrigerant. When low-pressure liquid refrigerant flows into the evaporator, it absorbs heat and becomes low-pressure gaseous refrigerant, causing a temperature change within the insulation device. The first insulation component maintains the temperature of the receiving cavity within the insulation device within a set range, thus keeping items placed inside the cavity fresh or warm. As can be seen, the evaporator and the first insulation component play a crucial role in the insulation effect of the insulation device. The evaporator must be tightly attached to the first inner shell to maximize its function; therefore, the reliability of the evaporator's position is paramount. Besides insulation effectiveness, the volume of the insulation device is an important indicator of its performance. The thickness of the first insulation component directly affects the volume of the insulation device. With a constant total volume, a thicker first insulation component leaves less space for the receiving cavity, resulting in a smaller cavity volume and thus a smaller insulation device volume. Conversely, a thinner first insulation component leaves more space for the receiving cavity, increasing the cavity volume and thus a larger insulation device volume.

[0007] In this application, the foamed material in the first insulation component serves both as insulation and as a fixation mechanism for the evaporator, preventing displacement and improving its stability. Since porous materials have extremely low thermal conductivity, a small amount of porous material can achieve the same insulation effect as a large amount of foamed material. When the first insulation component includes porous material, its thickness can be reduced, thus decreasing the space it occupies and increasing the space reserved for the receiving cavity. This allows for an increase in the volume of the receiving cavity, enabling it to hold more items. Alternatively, while maintaining the same thickness, including porous material in the first insulation component can enhance its insulation effect.

[0008] In some possible implementations, the first insulation component includes a first insulation layer and a second insulation layer that are stacked and fixed together. The material of the first insulation layer includes a foamed material, and the material of the second insulation layer includes a porous material. The side of the first insulation layer away from the second insulation layer is fixed to the first inner shell, and the first insulation layer covers the evaporator. The side of the second insulation layer away from the first insulation layer faces the first outer shell.

[0009] In the above implementation, the first insulation layer is made of foamed material, which not only provides insulation but also, through the foaming process, fixes the foamed material to the first inner shell and covers the evaporator, preventing displacement and improving its stability. The second insulation layer is made of a porous material with lower thermal conductivity. Therefore, for the same insulation requirements, the second insulation layer made of porous material is thinner than that made of foamed material. With the overall volume of the insulation device remaining constant, the reduced space occupied by the second insulation layer increases the space reserved for the receiving cavity, allowing for a larger volume of the cavity to hold more items. If the thickness of the second insulation layer made of porous material and the insulation layer made of foamed material are the same, the insulation effect of the second insulation layer is better.

[0010] In some possible implementations, the second insulation layer includes an aerogel layer containing aerogel, one side of which is fixed to the first insulation layer and the other side of which is attached to the first outer shell.

[0011] In the above implementation, an aerogel layer is used as the second insulation layer. Aerogel has an extremely low thermal conductivity, and there are no gaps between the aerogel layer and the first outer shell; they are in direct contact. This design can improve the insulation effect and enhance the structural compactness of the insulation device.

[0012] In some possible implementations, the second insulation layer includes a porous silicon layer containing porous silicon, one side of which is fixed to the first insulation layer and the other side of which is attached to the first outer shell.

[0013] In the above implementation, a porous silicon layer is used as the second insulation layer. Porous silicon has an extremely low thermal conductivity, and there are no gaps between the porous silicon layer and the first outer shell; they are in direct contact. This design can improve the insulation effect and enhance the structural compactness of the insulation device.

[0014] In some possible implementations, the second insulation layer includes an aerogel layer containing aerogel and a porous silicon layer containing porous silicon. The aerogel layer and the porous silicon layer are stacked and fixed. The side of the aerogel layer away from the porous silicon layer is fixed to the first insulation layer, and the side of the porous silicon layer away from the aerogel layer is attached to the first outer shell. Alternatively, the side of the porous silicon layer away from the aerogel layer is fixed to the first insulation layer, and the side of the aerogel layer away from the porous silicon layer is attached to the first outer shell.

[0015] In the above implementation method, the second insulation layer is made of porous silicon layer and aerogel layer with extremely low thermal conductivity, which can improve the insulation effect and improve the structural compactness of the insulation device.

[0016] In some possible implementations, the material of the second insulation layer may also include a matrix loaded with porous material, the matrix being any one of polyester fiber, aramid fiber, polyimide fiber, and nano-sponge.

[0017] The porous material can be in powder or granular form and adhere to the pores of the matrix, making the second insulation layer a separate sheet-like object such as felt, blanket, or cotton. The separate second insulation layer can be bonded to the first insulation layer using adhesive. Alternatively, before the first insulation layer is foamed, the second insulation layer is placed within the foaming space of the first insulation layer. During the foaming process of the first insulation layer, the second insulation layer will be compressed, and some material from the first insulation layer will adhere to the second insulation layer, allowing the first and second insulation layers to directly contact and fix each other.

[0018] The above implementation method simplifies the manufacturing process of the second insulation layer and can improve processing efficiency.

[0019] In some possible implementations, the first insulation layer and the second insulation layer are bonded together with adhesive.

[0020] The above implementation method simplifies the manufacturing process of the second insulation layer and can improve processing efficiency.

[0021] In some possible implementations, the thickness of the first insulation layer is between 10 mm and 12 mm, and the thickness of the second insulation layer is between 1 mm and 3 mm.

[0022] The above-described implementation method results in a total thickness of the first insulation component between 11 mm and 15 mm, which is more than 10 mm less than the thickness of an insulation component made entirely of foamed material. The space saved by reducing the thickness of the first insulation component can be reserved for the receiving cavity to increase the volume of the insulation device.

[0023] In some possible implementations, the first insulation element is formed by physically mixing foamed material and porous material together.

[0024] In the above implementation, the first insulation component is a single-layer structure with a low total thickness, which saves space. This saved space can be reserved for the receiving cavity to increase the volume of the insulation device. In addition, the single-layer structure of the first insulation component is relatively simple to manufacture, which can improve the processing efficiency of the insulation device.

[0025] In some possible implementations, the foaming material includes at least one of polyurethane and polystyrene. When the foaming material includes polyurethane and polystyrene, the polyurethane and polystyrene do not react chemically, but are only physically bonded.

[0026] Polyurethane and polystyrene are common foaming materials, and they are readily available and inexpensive.

[0027] In some possible implementations, the porous material includes at least one of aerogel and porous silicon.

[0028] In the above implementation, when the porous material includes aerogel and porous silicon, the aerogel and porous silicon do not undergo a chemical reaction, but are only physically bonded. Furthermore, the thermal conductivity of both aerogel and porous silicon is much lower than that of foamed materials. Using aerogel or porous silicon to create a second insulation layer can significantly improve the insulation effect or significantly reduce the thickness of the second insulation layer.

[0029] In some possible implementations, the aerogel includes at least one of silica aerogel and graphene aerogel.

[0030] Both silica aerogel and graphene aerogel are materials with very low thermal conductivity, which gives them excellent thermal insulation properties and can further improve the thermal insulation effect of thermal insulation devices.

[0031] In some possible implementations, porous silicon includes porous vacuum silicon.

[0032] Porous vacuum silicon is a material with very low thermal conductivity, which gives it excellent thermal insulation performance and can further improve the thermal insulation effect of thermal insulation devices.

[0033] In some possible implementations, the container further includes a second container wall connected to the first container wall. The second container wall includes a second inner shell and a second outer shell, with a second gap between the second inner shell and the second outer shell. The insulation device further includes a second insulation element disposed within the second gap. The material of the second insulation element includes at least one of foamed material and porous material.

[0034] When the second insulation component includes both foamed and porous materials, its structure can be identical to that of the first insulation component. This design allows both components to be manufactured using the same process. Alternatively, the second insulation component can consist only of foamed material, simplifying its manufacturing process and improving processing efficiency. The second insulation component can also consist only of porous materials, such as an aerogel layer or a porous silicon layer. This design simplifies the manufacturing process, improves processing efficiency, reduces thickness, and further increases the volume of the insulation device.

[0035] In some possible implementations, the insulation device also includes: a capillary tube, a dryer filter, a condenser, and a compressor, with the evaporator, compressor, condenser, dryer filter, and capillary tube connected end to end.

[0036] The high-pressure liquid refrigerant flowing from the condenser is dried by a dryer filter and then flows into a capillary tube. The capillary tube reduces the pressure of the high-pressure liquid refrigerant, turning it into a low-pressure liquid refrigerant. The low-pressure liquid refrigerant flows into the evaporator, where it absorbs heat and becomes a low-pressure gaseous refrigerant. At this point, the temperature inside the insulation device 100 decreases. Then, the low-pressure gaseous refrigerant flows into the compressor, which compresses it into a high-pressure gaseous refrigerant. The high-pressure gaseous refrigerant then flows into the condenser, where it condenses into a high-pressure liquid refrigerant.

[0037] In the above implementation method, the heat preservation device can continuously maintain the set temperature to keep the items fresh.

[0038] A second aspect of this application provides a terminal, which includes the heat preservation device of any one of the first aspects of this application.

[0039] In some possible implementations, the terminal is one of a vehicle, a robot, or a drone.

[0040] The beneficial effects of the second aspect of this application can be referenced in the first aspect. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the structure of the heat preservation device provided in the embodiments of this application.

[0042] Figure 2 for Figure 1 The diagram shows a cross-sectional view of the insulation device shown, cut along section plane L1.

[0043] Figure 3 for Figure 1 The diagram shows a cross-sectional view of the insulation device shown, cut along section plane L2.

[0044] Figure 4 This is a cross-sectional view of the internal structure of the heat preservation device provided in the embodiment of this application.

[0045] Figure 5 This is a partial structural cross-sectional view of the heat preservation device provided in the embodiment of this application.

[0046] Figure 6 This is a partial structural diagram of the heat preservation device provided in an embodiment of this application.

[0047] Figure 7 This is a schematic diagram of the structure of a first insulation component of the insulation device provided in the embodiments of this application.

[0048] Figure 8 yes Figure 7 The diagram shows the manufacturing process of the first insulation component.

[0049] Figure 9 This is a schematic diagram of the structure of another first insulation component of the insulation device provided in the embodiments of this application.

[0050] Figure 10 This is a schematic diagram of the structure of another first insulation component of the insulation device provided in the embodiments of this application.

[0051] Figure 11 This is a schematic diagram of the structure of another first insulation component of the insulation device provided in the embodiments of this application.

[0052] Figure 12 yes Figure 10 The diagram shows the manufacturing process of the first insulation component.

[0053] Figure 13 yes Figure 11 The diagram shows the manufacturing process of the first insulation component.

[0054] Figure 14 This is a schematic diagram of the structure of another first insulation component of the insulation device provided in the embodiments of this application.

[0055] Figure 15 This is a schematic diagram of the structure of another first insulation component of the insulation device provided in the embodiments of this application.

[0056] Figure 16This is a schematic diagram of the structure of another first insulation component of the insulation device provided in the embodiments of this application.

[0057] Figure 17 This is a schematic diagram of the structure of another first insulation component of the insulation device provided in the embodiments of this application.

[0058] Figure 18 This is a cross-sectional structural schematic diagram of another heat preservation device provided in the embodiments of this application.

[0059] Figure 19 This is a partial structural schematic diagram of another heat preservation device provided in the embodiments of this application.

[0060] Figure 20 This is a partial structural schematic diagram of another heat preservation device provided in the embodiments of this application.

[0061] Figure 21 This is a schematic diagram of the terminal structure provided in the embodiments of this application. Detailed Implementation

[0062] The embodiments of this application are described below with reference to the accompanying drawings.

[0063] The use of prefixes such as "first" and "second" in this scheme is solely for distinguishing different descriptive objects and does not limit the position, order, priority, quantity, or content of the described objects. For example, the number of described objects is not limited by the prefixes and can be one or more; for instance, in "first device," the number of "devices" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the described object is "device," then "first device" and "second device" can be the same device, devices of the same type, or devices of different types. In summary, the use of prefixes to distinguish descriptive objects in this application does not constitute a limitation on the described objects. The description of the described objects is based on the claims or the context of the embodiments, and the use of such prefixes should not constitute unnecessary restrictions.

[0064] To facilitate understanding, the relevant terms that may be involved in the embodiments of this application will be introduced below.

[0065] Foamed materials are materials with a porous structure formed by introducing air bubbles (or pores) into a substrate (such as polymers, metals, ceramics, etc.) through physical or chemical methods. The pore size of the air bubbles is at or above the micrometer level.

[0066] Porous materials: These are solid materials that contain a large number of pores (holes or channels) inside. These pores can be interconnected (open pores) or closed (closed pores).

[0067] Micron-sized porous materials refer to porous materials with pore sizes in the micrometer range, that is, porous materials with pore sizes less than or equal to 1000 micrometers (μm).

[0068] Nanoporous materials: These are porous materials with pore sizes at the nanometer level, that is, porous materials with pore sizes less than or equal to 1000 nanometers (nm).

[0069] Porous silicon: Porous silicon is a porous material with a highly open pore structure made of silicon. Its pore structure presents an interconnected three-dimensional network, exhibiting high specific surface area and large pore volume. The pore size of porous silicon is tunable, ranging from the nanoscale to the microscale. Porous silicon is typically prepared using methods such as the sol-gel method, evaporation method, and template method. The process of preparing porous silicon using the sol-gel method is as follows: a silicon source, solvent, and surfactant are mixed to form a colloidal sol, which is then subjected to gelation, drying, and high-temperature treatment to finally obtain the porous silicon material.

[0070] Porous vacuum silicon: Porous silicon with extremely low internal pressure in its pores, making it difficult for gas molecules to move and collide freely within the pores, thus creating a vacuum-like effect.

[0071] Aerogels are porous materials with a highly open pore structure, exhibiting a connected three-dimensional network of pores, resulting in high specific surface area and large pore volume. The pore size of aerogels is tunable, ranging from nanometer to micrometer scales. Aerogels are typically prepared using methods such as the sol-gel method, supercritical drying, and colloidal gelation. The sol-gel method involves mixing a sol and a gelling agent to form a colloidal sol, followed by gelation, drying, and heat treatment to obtain the final aerogel material.

[0072] Silica aerogel: A three-dimensional network of porous materials with silica (SiO2) as the framework and pores filled with air or other gases.

[0073] Graphene aerogel: A three-dimensional network of porous materials with graphene as the framework and air or other gases filling the pores.

[0074] The above explanations of the terminology can be applied to the embodiments described below.

[0075] refer to Figure 1 , Figure 2 and Figure 3 , Figure 1 This is a schematic diagram of the structure of the heat preservation device 100 provided in the embodiments of this application. Figure 2 for Figure 1 The schematic diagram shows a cross-sectional view of the insulation device 100 shown, cut along the cutting plane L1. Figure 3 for Figure 1The diagram shows a cross-sectional view of the insulation device 100 taken along section plane L2. This application provides an insulation device 100, which can be a refrigerator. The refrigerator can hold items 110 that need to be kept fresh, such as mineral water, beverages, and fruits (see reference). Figure 4 The insulation device 100 can also be a warm box, which can hold hot water, food and other items that need to be kept warm 110.

[0076] The insulation device 100 includes a housing 200, an evaporator 300, a first insulation component 400, and a second insulation component 700.

[0077] The container 200 has a receiving cavity 201 for storing items 110 that need to be kept fresh or warm. The insulation device 100 can be a top-opening device, allowing users to easily insert or remove items 110 from the receiving cavity 201 from the top of the insulation device 100. The insulation device 100 can also be a side-opening device, allowing users to easily insert or remove items 110 from the side of the insulation device 100.

[0078] The following describes the structure of the receiving box 200 when the insulation device 100 is a top-opening device: The receiving box 200 is rectangular in shape and includes a first box wall 210 and a second box wall 220. The first box wall 210 is the side wall of the receiving box 200. There are two second box walls 220, one of which is the lid 202 of the receiving box 200, and the other is the bottom 203 of the receiving box 200. The first box wall 210 is a rectangular frame with openings at both the top and bottom. The bottom 203 is fixedly connected to the bottom of the first box wall 210 and closes the bottom opening of the first box wall 210. The lid 202 is rotatably connected to the top of the first box wall 210 through a rotating component 500, so that the lid 202 can rotate relative to the first box wall 210. The rotating component 500 can be a hinge, a pivot, or a hinge, etc. The first box wall 210, the bottom 203, and the lid 202 form a receiving cavity 201. The lid 202 can close or expose the top opening of the first box wall 210, thereby facilitating the user to place or remove the item 110 inside the receiving cavity 201. A sealing ring is provided between the lid 202 and the box wall.

[0079] The following describes the structure of the receiving box 200 when the insulation device 100 is a side-opening device: The difference from the top-opening device is that in the side-opening device, the first box wall 210 has a side opening, and the box cover 202 is movably connected to the side of the first box wall 210. The box cover 202 can close or expose the side opening of the first box wall 210, thereby facilitating the user to put in or take out the items 110 in the receiving cavity 201.

[0080] The following explanation uses the top-opening insulation device 100 as an example.

[0081] In some embodiments, reference is made to Figure 2 and Figure 3 The first housing wall 210 is generally rectangular and ring-shaped. The first housing wall 210 includes a first inner shell 230 and a first outer shell 240. The first inner shell 230 includes a first inner side plate 231, a second inner side plate 232, a third inner side plate 233, and a fourth inner side plate 234 connected end to end. The first outer shell 240 includes a first outer side plate 241, a second outer side plate 242, a third outer side plate 243, and a fourth outer side plate 244 connected end to end. The first inner shell 230 is located inside the first outer shell 240, facing the receiving cavity 201. The first outer shell 240 is away from the receiving cavity 201. The first inner side plate 231 and the first outer side plate 241 are opposite to each other, the second inner side plate 232 and the second outer side plate 242 are opposite to each other, the third inner side plate 233 and the third outer side plate 243 are opposite to each other, and the fourth inner side plate 234 and the fourth outer side plate 244 are opposite to each other. A first gap 204 is provided between the first inner shell 230 and the first outer shell 240, and the first gap 204 is used to accommodate the evaporator 300 and the first insulation component 400. The first inner shell 230, the first outer shell 240 and the first gap 204 are all rectangular rings.

[0082] The evaporator 300 is disposed within the first gap 204 and is attached to the first inner shell 230. Exemplarily, the evaporator 300 is a continuously extending tubular component, wound in concentric circles around the first inner shell 230 of the housing. Taking the cooling function of the insulation device 100 as an example, the refrigerant within the evaporator 300 can absorb heat from the air within the insulation device 100, thereby lowering the temperature within the receiving cavity 201.

[0083] In some embodiments, reference is made to Figure 3 The second box wall 220 includes a second inner shell 221 and a second outer shell 222, both of which can be rectangular plates. The second inner shell 221 faces the receiving cavity 201, and the second outer shell 222 faces away from the receiving cavity 201. A second gap 223 is provided between the second inner shell 221 and the second outer shell 222 for accommodating the second insulation component 700. There are two second box walls 220, one of which is the box bottom 203. The second inner shell 221 of the box bottom 203 is fixedly connected to the bottom of the first inner shell 230 of the box side wall, and the second outer shell 222 of the box bottom 203 is fixedly connected to the bottom of the first outer shell 240.

[0084] In some embodiments, reference is made to Figure 4 , Figure 4This is a cross-sectional view of the internal structure of the heat preservation device 100 provided in an embodiment of this application. The heat preservation device 100 also has a mounting cavity 205, which is separated from the receiving cavity 201. The heat preservation device 100 also includes a third outer shell 250, which is fixed to the first outer shell 240 and together with the first outer shell 240 forms the mounting cavity 205. In some optional embodiments, the first outer side plate 241 includes a first sub-plate 245, a second sub-plate 246, and a third sub-plate 247 connected in sequence. The first sub-plate 245 and the third sub-plate 247 extend along the height direction of the heat preservation device 100, and the second sub-plate 246 extends along the width direction of the heat preservation device 100. Correspondingly, the first inner side plate 231 includes a fourth sub-plate 235, a fifth sub-plate 236, and a sixth sub-plate 237 connected in sequence. The fourth sub-plate 235 is opposite to the first sub-plate 245, the fifth sub-plate 236 is opposite to the second sub-plate 246, and the sixth sub-plate 237 is opposite to the third sub-plate 247. The third outer casing 250 includes a fifth outer side plate 251 and a sixth outer side plate 252 fixedly connected. The included angle between the fifth outer side plate 251 and the sixth outer side plate 252 is a right angle. The end of the fifth outer side plate 251 away from the sixth outer side plate 252 is fixed to a second sub-plate 246, and the end of the sixth outer side plate 252 away from the fifth outer side plate 251 is fixed to a third sub-plate 247. The second sub-plate 246, the third sub-plate 247, the fifth outer side plate 251, and the sixth outer side plate 252 form a mounting cavity 205. This design makes the thermal insulation device 100 have a regular rectangular shape.

[0085] In some embodiments, reference is made to Figure 4 The insulation device 100 also includes a capillary tube 301, a dryer filter 302, a condenser 303, and a compressor 304. The dryer filter 302, condenser 303, and compressor 304 are all disposed within the mounting cavity 205. The capillary tube 301 is located within the second gap 223 and is wrapped by the second insulation member 700. The condenser 303, dryer filter 302, capillary tube 301, evaporator 300, and compressor 304 are connected end to end. The evaporator 300 and compressor 304 are connected by a pipe 306. A portion of the pipe 306 is located within the first gap 204 and is wrapped by the first insulation member 400, while the other portion of the pipe 306 is located within the second gap 223 and is wrapped by the second insulation member 700.

[0086] The working principle of the insulation device 100 in the above embodiments is as follows: The high-pressure liquid refrigerant flowing out of the condenser 303 is dried by the dryer filter 302 and then flows into the capillary tube 301. The capillary tube 301 depressurizes the high-pressure liquid refrigerant, making it a low-pressure liquid refrigerant. The low-pressure liquid refrigerant flows into the evaporator 300, where it absorbs heat and becomes a low-pressure gaseous refrigerant, thus lowering the temperature inside the insulation device 100. Then, the low-pressure gaseous refrigerant flows into the compressor 304, which compresses it into a high-pressure gaseous refrigerant. The high-pressure gaseous refrigerant flows into the condenser 303, where it condenses into a high-pressure liquid refrigerant.

[0087] The insulation device 100 also includes a fan 305 disposed within the mounting cavity 205. The third housing 250 is provided with an air vent (not shown). Exemplarily, the air vent is disposed on the fifth outer side plate 251. At least a portion of the fan 305 is opposite to the air vent, and the fan 305 can dissipate hot air from the mounting cavity 205 outside the insulation device 100 through the air vent.

[0088] The first insulation element 400 is disposed within the first gap 204, and the second insulation element 700 is disposed within the second gap 223. That is, insulation elements are disposed on the top, bottom, left, right, front, and rear of the receiving box 200 to keep the temperature inside the receiving cavity 201 within an ideal temperature range. The structures of the first insulation element 400 and the second insulation element 700 may be the same or different.

[0089] In some possible implementations, the first insulation member 400 and the second insulation member 700 have the same structure. The structure of the first insulation member 400 is described below, and the structure of the second insulation member 700 can be referred to the structure of the first insulation member 400.

[0090] In some embodiments, the first insulation element 400 includes a vacuum insulation board with a density between 50 kg / m³. 3 Up to 280kg / m 3 The operating environment temperature range is between -50°C and 100°C, the thermal conductivity is approximately 0.015 W / (m·K), and the thickness of the vacuum insulation board is between 4 mm and 5 mm. However, the vacuum insulation board is made of a rigid, inflexible material, so it cannot be filled at the corner of the first gap 204, resulting in a decrease in the insulation effect of the insulation device 100. Furthermore, damage to the vacuum insulation board will significantly reduce the insulation effect.

[0091] To address the aforementioned issues, in some embodiments, the first insulation component 400 is made of a foamed material, including polyurethane or polystyrene. In some possible embodiments, the first insulation component 400 is a polyurethane board with a density between 45 kg / m³. 3 Up to 55kg / m 3 The operating environment temperature range is between -65℃ and 80℃, the thermal conductivity is approximately 0.023 W / (m·K), and the thickness of the polyurethane board is between 25 mm and 30 mm. In some other possible embodiments, the first insulation element 400 is a polystyrene board with a density between 15 kg / m³. 3 Up to 50kg / m 3 The thermal conductivity is approximately 0.032 W / (m·K), the operating temperature range is between -60℃ and 70℃, and the thickness of the polystyrene board is approximately 30 mm. The first insulation component 400 is made of foamed material, which not only provides insulation but also allows the evaporator 300 to be fixed to the first inner side plate 231 during the foaming process.

[0092] In the above embodiments, the foaming material can be filled into the first gap 204 using a foaming process. Therefore, the corner positions of the first gap 204 can also be filled with foaming material, thereby improving the insulation effect of the insulation device 100. Furthermore, damage to the polyurethane foam has little impact on the insulation effect. However, under the same temperature requirements, the thickness of the foaming material is greater than the thickness of the vacuum insulation board. When the total volume of the insulation device 100 remains constant, the increased space occupied by the first insulation component 400 reduces the space reserved for the receiving cavity 201, resulting in a decrease in the volume of the receiving cavity 201.

[0093] To address the aforementioned issues, this application provides the following first insulation component 400.

[0094] In some embodiments, reference is made to Figure 4 The first insulation component 400 is made of foamed material and porous material. The first insulation component 400 is disposed within the first gap 204 and fixedly connected to the first inner shell 230. The first insulation component 400 covers the evaporator 300, and the portion of the first insulation component 400 composed of foamed material is in contact with the evaporator 300. The porous material includes at least one of nano-sized porous material or micro-sized porous material, and the thermal conductivity of the porous material is less than that of the foamed material. For example, the thermal conductivity of the foamed material is between 0.023 W / (m·K) and 0.032 W / (m·K), while the thermal conductivity of the porous material is less than 0.023 W / (m·K). Exemplarily, the comparison of the thermal conductivity of the porous material and the foamed material is based on the same ambient temperature.

[0095] The first insulation element 400 maintains the temperature of the receiving cavity 201 within the insulation device 100 within a set range, thus keeping items placed in the receiving cavity 201 fresh or warm. The evaporator 300 and the first insulation element 400 play crucial roles in the insulation effect of the insulation device. The evaporator 300 must be in close contact with the first inner shell 230 to maximize its function; therefore, the positional reliability of the evaporator 300 is critical. Besides the insulation effect, the volume of the insulation device 100 is an important indicator of its performance. The thickness of the first insulation element 400 directly affects the volume of the insulation device. With the total volume of the insulation device 100 remaining constant, a thicker first insulation element 400 leaves less space in the receiving cavity 201, resulting in a smaller volume of the receiving cavity 201 and thus a smaller volume of the insulation device 100. Conversely, a thinner first insulation element 400 leaves more space in the receiving cavity, resulting in a larger volume of the receiving cavity 201 and thus a larger volume of the insulation device 100.

[0096] In the insulation device 100 provided in this application embodiment, the foamed material in the first insulation member 400 can both provide insulation and fix the evaporator 300 to prevent the evaporator 300 from shifting position and improve the stability of the evaporator 300. Since porous materials have extremely low thermal conductivity, a small amount of porous material can achieve the insulation effect that a large amount of foamed material can achieve. When the material of the first insulation member 400 includes porous material, the thickness of the first insulation member 400 can be reduced, thus reducing the space occupied by the first insulation member 400 and increasing the space reserved for the receiving cavity 201. This allows for an increase in the volume of the receiving cavity 201, enabling it to accommodate more items 110. Alternatively, with the thickness of the first insulation member 400 remaining unchanged, it can still enhance the insulation effect.

[0097] In some embodiments, reference is made to Figure 4The first insulation component 400 includes a first insulation layer 410 and a second insulation layer 420 stacked and fixed together. The first insulation layer 410 is made of foamed material, and the second insulation layer 420 is made of porous material. The side of the first insulation layer 410 away from the second insulation layer 420 is fixed to the first inner shell 230, and the first insulation layer 410 covers the evaporator 300. The side of the second insulation layer 420 away from the first insulation layer 410 faces the first outer shell 240. The first insulation layer 410 is made of foamed material, which allows it to both provide insulation and, through the foaming process, fix the foamed material to the first inner shell 230 and cover the evaporator 300, preventing the evaporator 300 from shifting position and improving its stability. The second insulation layer 420 is made of a porous material with a lower thermal conductivity. Therefore, under the same insulation requirements, the second insulation layer 420 made of porous material is thinner than that made of foam material. With the overall volume of the insulation device 100 remaining constant, the space occupied by the second insulation layer 420 is reduced, thus increasing the space reserved for the receiving cavity 201. This allows the receiving cavity 201 to be larger, enabling it to accommodate more items 110. If the second insulation layer 420 made of porous material and the insulation layer made of foam material have the same thickness, the insulation effect of the second insulation layer 420 is better.

[0098] The insulation device 100 provided in this application embodiment achieves both insulation and fixing of the evaporator 300 through the first insulation layer 410, while the second insulation layer 420 only needs to achieve the insulation function and does not need to fix the evaporator 300. Therefore, the second insulation layer 420 can be made of a material with a lower thermal conductivity to achieve the following objectives: While keeping the total thickness of the first insulation element 400 unchanged, the insulation effect can be improved, increasing the insulation range of the insulation device 100. Alternatively, when the temperature maintained by the insulation device 100 is between -6°C and 50°C, the thickness of the first insulation element 400 can be significantly reduced, thereby reducing the space occupied by the first insulation element 400 and increasing the volume of the insulation device 100. In some possible embodiments, the volume of the insulation device 100 can be increased by 30% to 40%.

[0099] In some embodiments, the foaming material includes at least one of polyurethane and polystyrene. When the foaming material includes polyurethane and polystyrene, the polyurethane and polystyrene do not chemically react, but are only physically bonded. Exemplarily, the first insulation layer 410 includes a polyurethane layer 411 containing polyurethane, or the first insulation layer 410 includes a polystyrene layer 412 containing polystyrene, or the first insulation layer 410 includes both a polyurethane layer 411 containing polyurethane and a polystyrene layer 412 containing polystyrene, with the polyurethane layer 411 and polystyrene layer 412 stacked and fixed. This stacking and fixing of the polyurethane layer 411 and polystyrene layer 412 is a form of physical bonding. The polyurethane layer 411 is not limited to including only polyurethane, and the polystyrene layer 412 is not limited to including only polystyrene.

[0100] In some embodiments, the porous material includes at least one of aerogel and porous silicon. When the porous material includes aerogel and porous silicon, the aerogel and porous silicon do not chemically react, but are only physically bonded. Exemplarily, the second insulation layer 420 includes an aerogel layer 421, or the second insulation layer 420 includes a porous silicon layer 422, or the second insulation layer 420 includes a stacked and fixed aerogel layer 421 and a porous silicon layer 422, the stacking and fixing of the aerogel layer 421 and the porous silicon layer 422 being a form of physical bonding. When the ambient temperature is between -50℃ and 300℃, the thermal conductivity of both aerogel and porous silicon is less than 0.023 W / (m·k). The thermal conductivity of aerogel can reach as low as about 0.01 W / (m·k), and the thermal conductivity of porous silicon can reach as low as about 0.008 W / (m·k). Using aerogel or porous silicon to make the second insulation layer 420 can significantly improve the insulation effect or significantly reduce the thickness of the second insulation layer 420.

[0101] In some embodiments, the aerogel can be at least one of silica aerogel and graphene aerogel, that is, the aerogel is silica aerogel, or the aerogel is graphene aerogel, or the aerogel is a mixture of silica aerogel and graphene aerogel, where mixing refers to physical mixing without chemical reaction. The porosity of silica aerogel and graphene aerogel can be greater than 80%. When the ambient temperature is between -50°C and 300°C, the thermal conductivity of silica aerogel is between 0.011 W / (m·K) and 0.018 W / (m·K), and the thermal conductivity of graphene aerogel is between 0.011 W / (m·K) and 0.016 W / (m·K).

[0102] In some embodiments, the porous silicon can be porous vacuum silicon. The porosity of the porous vacuum silicon can be greater than 80%, and the thermal conductivity of the porous vacuum silicon is between 0.008 W / (m·k) and 0.020 W / (m·k) when the ambient temperature is between -50°C and 300°C.

[0103] Silica aerogel, graphene aerogel, and porous vacuum silicon are all materials with very low thermal conductivity, which gives them excellent thermal insulation properties. When used in the thermal insulation device 100 of this application embodiment, the thermal insulation effect of the device 100 can be improved.

[0104] In some embodiments, the first insulation layer 410 can be made using a foaming process first, and then the second insulation layer 420 can be directly formed onto the first insulation layer 410 so that the first insulation layer 410 and the second insulation layer 420 can be directly contacted and fixed, for example, the second insulation layer 420 can be coated onto the first insulation layer 410.

[0105] In other embodiments, reference is made to Figure 5 and Figure 6 , Figure 5 This is a partial structural cross-sectional view of the heat preservation device 100 provided in the embodiments of this application. Figure 6 This is another partial structural schematic diagram of the insulation device 100 provided in this application embodiment. The second insulation layer 420 can be first made into a sheet-like object such as felt, blanket, or cotton. Optionally, the material of the second insulation layer 420 includes the aforementioned porous material and a matrix 430 supporting the porous material. The matrix 430 includes any one of polyester fiber, aramid fiber, polyimide fiber, and nano-sponge. Polyester fiber is low in cost and has strong flexibility; aramid fiber has high strength and high temperature resistance; polyimide fiber can withstand high temperatures; and nano-sponge can withstand high temperatures.

[0106] Porous materials can be in powder or granular form and adhere to the pores of the matrix 430. (Reference) Figure 5 Before the first insulation layer 410 is foamed, the second insulation layer 420 is placed within the foaming space of the first insulation layer 410. During the foaming process of the first insulation layer 410, the second insulation layer 420 is compressed, and some material from the first insulation layer 410 adheres to the second insulation layer 420, allowing the first and second insulation layers 410 to directly contact and fix each other. Alternatively, after the second insulation layer 420 becomes an independent sheet of felt, blanket, or cotton, refer to... Figure 6 The second insulation layer 420 can be bonded to the first insulation layer 410 using adhesive 440.

[0107] The following details several specific implementation methods of the first insulation component 400.

[0108] Among some possible implementations, refer to Figure 7 , Figure 7 This is a schematic diagram of the structure of a first insulation element 400 of the insulation device 100 provided in this application embodiment. The first insulation layer 410 includes a polyurethane layer 411 containing polyurethane. The polyurethane layer 411 is fixed to the first inner shell 230 and covers the evaporator 300. The polyurethane layer 411 is not limited to containing only polyurethane material. The second insulation layer 420 includes an aerogel layer 421 containing aerogel. The aerogel layer 421 is not limited to containing only aerogel material. One side of the aerogel layer 421 is fixed to the first insulation layer 410, and the other side of the aerogel layer 421 is attached to the first outer shell 240.

[0109] refer to Figure 8 , Figure 8 yes Figure 7 The diagram shows the manufacturing process of the first insulation component 400. The manufacturing process of the first insulation component 400 in this embodiment is described below.

[0110] Step S11: A template 800 is arranged around the outer periphery of the first inner shell 230 to which the evaporator 300 is wrapped, so that there is a third gap 810 between the template 800 and the first inner shell 230. The third gap 810 is smaller than the first gap 204 mentioned above, and the evaporator 300 does not contact the template 800. To facilitate the subsequent separation of the template 800 and the polyurethane layer 411, a hydrophobic layer can be provided on the outer surface of the template 800.

[0111] Step S12: Inject polyurethane raw material into the third gap 810 to foam the raw material, and then dry the foamed raw material to form a polyurethane layer 411. The drying time required for the raw material is between 0.5 hours (h) and 1 hour.

[0112] Step S13: Remove the template 800. At this time, the polyurethane layer 411 is fixed to the first inner side plate 231 and covers the evaporator 300.

[0113] Step S14: A dispersion containing aerogel material is applied to the surface of the polyurethane layer 411 facing away from the first inner shell 230. After the dispersion containing aerogel material solidifies, an aerogel layer 421 containing aerogel is formed. During the application process, the aerogel material and the polyurethane layer 411 do not undergo a chemical reaction.

[0114] Step S15: Place the first outer shell 240 around the first inner shell 230, and make the aerogel layer 421 adhere to the first outer shell 240.

[0115] In this embodiment, the side of the polyurethane layer 411 away from the aerogel layer 421 is fixed to the first inner shell 230, and the side of the aerogel layer 421 away from the polyurethane layer 411 is attached to the first outer shell 240. That is, the first insulation component 400 fills the entire first gap 204, and no other layer structure is required between the polyurethane layer 411 and the aerogel layer 421. The total thickness of the first insulation component 400 is between 11mm and 15mm, for example, 11mm, 12mm, 13mm, 14mm, or 15mm. The thickness of the polyurethane layer 411 is between 10mm and 12mm, for example, 10mm, 11mm, or 12mm. The thickness of the aerogel layer 421 is between 1mm and 3mm, for example, 1mm, 2mm, or 3mm. Compared to the solution of filling the first gap 204 entirely with foamed material, the above embodiment can improve the structural compactness of the insulation device 100, thereby increasing the volume of the insulation device 100 by about 40%.

[0116] Among other possible implementations, see reference Figure 9 , Figure 9 This is a schematic diagram of another first insulation component 400 of the insulation device 100 provided in this application embodiment. The first insulation layer 410 includes a polyurethane layer 411 containing polyurethane. The second insulation layer 420 includes a porous silicon layer 422 containing porous silicon, and the porous silicon layer 422 is not limited to containing only porous silicon material. One side of the porous silicon layer 422 is fixed to the first insulation layer 410, and the other side of the porous silicon layer 422 is attached to the first outer shell 240.

[0117] In this embodiment, the side of the polyurethane layer 411 away from the porous silicon layer 422 is fixed to the first inner shell 230, and the side of the porous silicon layer 422 away from the polyurethane layer 411 is attached to the second outer shell 222. That is, the first insulation component 400 fills the entire first gap 204, and no other layer structure is required between the polyurethane layer 411 and the porous silicon layer 422. This design can improve the structural compactness of the insulation device 100.

[0118] The manufacturing process of the first insulation component 400 in this embodiment can refer to the previous embodiment.

[0119] Among other possible implementations, see reference Figure 10 and Figure 11 , Figure 10 This is a schematic diagram of another first insulation element 400 of the insulation device 100 provided in this application embodiment. Figure 11This is a schematic diagram of another first insulation element 400 of the insulation device 100 provided in this application embodiment. The first insulation layer 410 includes a polyurethane layer 411 containing polyurethane, and the material of the second insulation layer 420 includes aerogel and a substrate 430 supporting the aerogel. The aerogel can be in granular or powder form and adheres to the pores of the substrate 430 to form an independent aerogel layer 421. The independent aerogel layer 421 can be an aerogel felt, an aerogel blanket, or aerogel cotton. (Reference) Figure 10 The independent aerogel layer 421 can be fixedly connected to the polyurethane material during the polyurethane foaming process, or, refer to... Figure 11 By fixing it to the polyurethane layer 411 through bonding or other methods, the processing of the first insulation component 400 is simplified.

[0120] In this embodiment, the thickness of the first insulation component 400 is about 15 mm, the thickness of the polyurethane layer 411 is about 12 mm, and the thickness of the aerogel layer 421 is about 3 mm. Compared with the scheme of filling the first gap 204 entirely with foamed material, the volume of the insulation device 100 is increased by about 40%.

[0121] The manufacturing process of the first insulation component 400 in this embodiment is described below.

[0122] The first production method, see reference. Figure 12 , Figure 12 yes Figure 10 The diagram shows the manufacturing process of the first insulation component 400.

[0123] Step S21: Adhere the aerogel layer 421 to the surface of the first outer shell 240.

[0124] Step S22: The first outer shell 240 is wrapped around the first inner shell 230 on which the evaporator 300 is wound, such that the template 800 and the first inner shell 230 maintain a first gap 204, the evaporator 300 and the aerogel layer 421 are both located within the first gap 204, and the evaporator 300 and the aerogel layer 421 are not in contact.

[0125] Step S23: Inject polyurethane raw material into the first gap 204 to foam the raw material. During foaming, the raw material will compress the aerogel layer 421, and some of the raw material will adhere to the surface of the aerogel layer 421. Then, the foamed raw material is cured to form a polyurethane layer 411. During the foaming process, the aerogel layer 421 and the polyurethane raw material do not undergo a chemical reaction; it is only a physical adhesion.

[0126] The second production method is referenced. Figure 13 , Figure 13 yes Figure 11 The diagram shows the manufacturing process of the first insulation component 400.

[0127] Step S31: A template 800 is set around the first inner shell 230 on which the evaporator 300 is wrapped, so that there is a fourth gap 820 between the template 800 and the first inner shell 230. The fourth gap 820 is smaller than the first gap 204 mentioned above, and the evaporator 300 does not contact the template 800.

[0128] Step S32: Inject polyurethane raw material into the fifth gap to make the raw material foam. When the raw material foams, it will squeeze the aerogel layer 421, and some of the raw material will adhere to the surface of the aerogel layer 421. Then the foamed raw material is cured to form the polyurethane layer 411.

[0129] Step S33: Remove template 800.

[0130] Step S34: Adhere the aerogel layer 421 to the side of the polyurethane layer 411 away from the first inner shell 230 using adhesive 440.

[0131] Step S35: Place the first outer shell 240 around the first inner shell 230, and make the aerogel layer 421 adhere to the first outer shell 240.

[0132] Among other possible implementations, see reference Figure 14 and Figure 15 , Figure 14 This is a schematic diagram of another first insulation element 400 of the insulation device 100 provided in this application embodiment. Figure 15 This is a schematic diagram of another first insulation component 400 of the insulation device 100 provided in this application embodiment. The first insulation layer 410 includes a polyurethane layer 411 containing polyurethane, and the material of the second insulation layer 420 includes porous silicon and a substrate 430 loaded with porous silicon. The porous silicon can be in granular or powder form and is attached to the pores of the substrate 430 to form an independent porous silicon layer 422. The independent porous silicon layer 422 can be a porous silicon felt, a porous silicon blanket, or porous silicon wool. The independent porous silicon layer 422 can be fixedly connected to the polyurethane material during the polyurethane foaming process, or fixed to the polyurethane layer 411 by adhesive 440, simplifying the processing of the first insulation component 400.

[0133] In this embodiment, the manufacturing process of the first insulation component 400 can refer to the previous embodiment.

[0134] Among other possible implementations, see reference Figure 16 , Figure 16This is a schematic diagram of another first insulation element 400 of the insulation device 100 provided in this application embodiment. The first insulation layer 410 includes a polystyrene layer 412 containing polystyrene. The second insulation layer 420 includes an aerogel layer 421 containing aerogel and a porous silicon layer 422 containing porous silicon, the aerogel layer 421 and the porous silicon layer 422 being stacked and fixed. The side of the aerogel layer 421 away from the porous silicon layer 422 is fixed to the polystyrene layer 412, and the side of the porous silicon layer 422 away from the aerogel layer 421 is attached to the first outer shell 240. Alternatively, the side of the porous silicon layer 422 away from the aerogel layer 421 is fixed to the first insulation layer 410, and the side of the aerogel layer 421 away from the porous silicon layer 422 is attached to the first outer shell 240.

[0135] The polystyrene layer 412 can be manufactured using a foaming process, and the manufacturing process of the polystyrene layer 412 can refer to the manufacturing process of the polyurethane layer 411 described above. The manufacturing processes of the aerogel layer 421 and the porous silicon layer 422 can refer to the embodiments described above.

[0136] Among other possible implementations, see reference Figure 17 , Figure 17 This is a schematic diagram of another first insulation component 400 of the insulation device 100 provided in this application embodiment. The first insulation layer 410 includes a polystyrene layer 412 containing polystyrene and a polyurethane layer 411 containing polyurethane, and the second insulation layer 420 includes an aerogel layer 421 containing aerogel. The polystyrene layer 412, the polyurethane layer 411, and the aerogel layer 421 are sequentially stacked and fixed, with the side of the polystyrene layer 412 away from the polyurethane layer 411 fixed to the first inner shell 230, and the side of the aerogel layer 421 away from the polyurethane layer 411 attached to the first outer shell 240. Alternatively, the polyurethane layer 411, the polystyrene layer 412, and the aerogel layer 421 are sequentially stacked and fixed, with the side of the polyurethane layer 411 away from the polystyrene layer 412 stacked on the first inner shell 230, and the side of the aerogel layer 421 away from the polystyrene layer 412 attached to the first outer shell 240.

[0137] This application embodiment also provides another first insulation element 400, see reference. Figure 18 , Figure 18This is a cross-sectional structural schematic diagram of another heat preservation device 100 provided in this application embodiment. The material of the first heat preservation element 400 includes foamed material and porous material. The first heat preservation element 400 is formed by physically mixing the foamed material and porous material together, and the first heat preservation element 400 appears to be a single-layer structure. The porous material is uniformly dispersed in the foamed material. The first heat preservation element 400 is fixed to the first inner shell 230 and covers the evaporator 300. The thickness of the first heat preservation element 400 is between 15mm and 20mm, increasing the volume of the heat preservation device 100 by approximately 30%. The foamed material and porous material in the first heat preservation element 400 are physically mixed and do not undergo chemical reaction.

[0138] In this embodiment, the manufacturing process of the first insulation component 400 is as follows:

[0139] Step 1: Add aerogel material to the polyurethane raw materials. The aerogel material can be in granular or powder form, so that the aerogel material is evenly distributed in the polyurethane raw materials.

[0140] Step 2: Inject polyurethane raw material containing aerogel material into the first gap 204 for foaming. During the foaming process, the aerogel material and the polyurethane raw material do not undergo a chemical reaction.

[0141] In this embodiment, the first insulation element 400 is a single-layer structure with a low total thickness, which saves space. This saved space can be reserved for a receiving cavity to increase the volume of the insulation device 100. Furthermore, the single-layer structure of the first insulation element 400 simplifies its fabrication process, improving the processing efficiency of the insulation device 100. The structure of the second insulation element 700 is the same as that of the first insulation element 400; that is, the second insulation element 700 can also consist of only one layer of the first insulation element 400.

[0142] In other embodiments of this application, reference is made to Figure 19 , Figure 19 This is a partial structural schematic diagram of another heat insulation device 100 provided in an embodiment of this application. The structure of the second heat insulation member 700 is different from that of the first heat insulation member 400. Exemplarily, the first heat insulation member 400 includes a first heat insulation layer 410 and a second heat insulation layer 420. The first heat insulation layer 410 includes at least one of a polyurethane layer 411 or a polystyrene layer 412, and the second heat insulation layer 420 includes at least one of an aerogel layer 421 and a porous silicon layer 422. The material of the second heat insulation member 700 includes only porous materials. For example, refer to... Figure 19The second insulation element 700 may consist only of an aerogel layer 421, or it may consist only of a porous silicon layer 422. Compared to a solution where the second insulation element 700 includes a first insulation layer 410 and a second insulation layer 420, the thickness of the second insulation element 700 is reduced, the space required by the second insulation element 700 is reduced, and the space reserved for the receiving cavity 201 is further increased, thereby further improving the volume of the insulation device 100.

[0143] Optionally, the material of the second insulation component 700 may consist only of foam material. For example, the second insulation component 700 may consist only of a polyurethane layer 411, or it may consist only of a polystyrene layer 412. Compared to a solution where the second insulation component 700 includes a first insulation layer 410 and a second insulation layer 420, the manufacturing process of the second insulation component 700 is simplified, and processing efficiency can be improved.

[0144] In other embodiments of this application, reference is made to Figure 20 , Figure 20 This is a partial structural diagram of another insulation device 100 provided in an embodiment of this application. The structure of the second insulation component 700 in the bottom 203 is the same as that of the first insulation component 400, while the structure of the second insulation component 700 in the lid 202 is different from that of the first insulation component 400. For example, both the first insulation component 400 and the second insulation component 700 in the bottom 203 are laminated and fixed with a polyurethane layer 411 and an aerogel layer 421, while the second insulation component 700 in the lid 202 only includes the aerogel layer 421.

[0145] This application also provides a terminal 1000, as referenced. Figure 21 , Figure 21 This is a schematic diagram of the terminal 1000 provided in an embodiment of this application. The terminal 1000 includes the heat preservation device 100 of any of the above embodiments of this application.

[0146] Terminal 1000 can be a vehicle, drone, robot, or other intelligent terminal 1000 or means of transportation. It should be understood that "vehicle" here is used in a broad sense, including means of transportation (such as commercial vehicles, passenger cars, motorcycles, flying cars, trains, etc.), industrial vehicles (such as forklifts, trailers, tractors, etc.), engineering vehicles (such as excavators, bulldozers, cranes, etc.), agricultural equipment (such as lawnmowers, harvesters, etc.). Similarly, "robot" can refer to automated guided vehicles (AGVs), walking conversational robots, and service robots.

[0147] Taking a vehicle as an example, the vehicle includes an outer shell, within which a cabin is located. An insulation device 100 is integrated into the cabin; that is, the insulation device 100 and the cabin are integrally formed, and the insulation device 100 is included with the vehicle at the factory. The cabin includes front seats, second-row seats, and rear seats. In some possible implementations, the insulation device 100 can be located at the front passenger dashboard position, and the insulation device 100 is a drawer-type, side-opening device with its lid 202 facing the rear seats. The lid 202 is connected to an internal receiving cavity. When the lid 202 is open, the receiving cavity extends along with the lid 202; when the lid 202 is closed, the receiving cavity and the lid 202 retract together.

[0148] In some other possible implementations, the heat preservation device 100 can also be located in the center console of the second row of seats, and the heat preservation device 100 can be a top-opening device.

[0149] In some other possible implementations, the insulation device 100 can also be set between the two rear seats. The insulation device 100 can be a side-opening device. The bottom of the lid 202 is rotatably connected to the box body. When the lid 202 rotates around the connection point, the top of the lid 202 gradually moves away from the lid 202.

[0150] In addition, a few additional points need to be made regarding this application:

[0151] I. The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to depart from the protection scope of the technical solutions of the embodiments of this application.

[0152] 2. Unless otherwise stated, “multiple” means two or more.

[0153] 3. Unless otherwise specified or in case of logical conflict, the terms and / or descriptions in different embodiments of this application are consistent and can be referenced by each other. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0154] IV. The various numerical designations used in this application are merely for descriptive convenience and are not intended to limit the scope of protection of this application. The magnitude of the serial numbers used in this application does not imply a sequential order of execution; the execution order of each process should be determined by its function and internal logic. For example, the terms "first," "second," "third," "fourth," and other various terminology (if present) in the specification, claims, and drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Such data can be interchanged where appropriate so that the embodiments described herein can be implemented in a sequence other than that illustrated or described herein.

[0155] Furthermore, any embodiment or design described in this application as "exemplary" or "for example" should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner for ease of understanding.

[0156] V. The terms “comprising” and “having” and any variations thereof are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or modules is not necessarily limited to those steps or modules that are expressly listed, but may include other steps or modules that are not expressly listed or that are inherent to such process, method, product or device.

[0157] VI. The terms “center,” “upper,” “lower,” “left,” “right,” “vertical,” “horizontal,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0158] VII. The Cartesian coordinate system and the x, y, z directions shown in the various embodiments of this application are exemplary identifiers for ease of understanding and are not intended to limit the embodiments of this application. In actual implementation, the placement of devices, the arrangement direction, and the direction of the beam may be designed differently, and other coordinate systems such as spherical coordinates may also be used.

[0159] 8. Unless otherwise stated, " / " indicates that the objects before and after are in an "or" relationship. For example, A / B can mean A or B. In this application, "and / or" is merely a description of the relationship between the related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, and B exists alone. A and B can be singular or plural.

[0160] 9. Unless otherwise stated, the names of devices, systems, modules and other information in the embodiments of this application are merely examples, and devices, modules and modules are used to represent possible entities that implement a certain function, and the meanings of the three can be used interchangeably.

Claims

1. A heat preservation device, characterized in that, include: A receiving box is provided with a receiving cavity. The receiving box includes a first box wall, which includes a first inner shell and a first outer shell. The first inner shell faces the receiving cavity, and the first outer shell faces away from the receiving cavity. A first gap is provided between the first inner shell and the first outer shell. An evaporator is disposed within the first gap and is fitted to the first inner shell. The first insulation component is made of foamed material and porous material. The first insulation component is disposed in the first gap and fixedly connected to the first inner shell. The first insulation component covers the evaporator, and the part of the first insulation component made of foamed material is in contact with the evaporator. The thermal conductivity of the porous material is less than that of the foamed material.

2. The heat preservation device according to claim 1, characterized in that, The first insulation component includes a first insulation layer and a second insulation layer that are stacked and fixed together. The material of the first insulation layer includes a foamed material, and the material of the second insulation layer includes a porous material. The side of the first insulation layer away from the second insulation layer is fixed to the first inner shell, and the first insulation layer covers the evaporator. The side of the second insulation layer away from the first insulation layer faces the first outer shell.

3. The heat preservation device according to claim 2, characterized in that, The second insulation layer includes an aerogel layer containing aerogel, one side of which is fixed to the first insulation layer and the other side of which is attached to the first outer shell.

4. The heat preservation device according to claim 2, characterized in that, The second insulation layer includes a porous silicon layer containing porous silicon, one side of which is fixed to the first insulation layer and the other side of which is attached to the first outer shell.

5. The heat preservation device according to claim 2, characterized in that, The second insulation layer includes an aerogel layer containing aerogel and a porous silicon layer containing porous silicon, wherein the aerogel layer and the porous silicon layer are stacked and fixed together. The side of the aerogel layer away from the porous silicon layer is fixed to the first insulation layer, and the side of the porous silicon layer away from the aerogel layer is attached to the first outer shell; or, the side of the porous silicon layer away from the aerogel layer is fixed to the first insulation layer, and the side of the aerogel layer away from the porous silicon layer is attached to the first outer shell.

6. The heat preservation device according to claim 2, characterized in that, The material of the second insulation layer also includes a matrix that supports the porous material, the matrix including any one of polyester fiber, aramid fiber, polyimide fiber and nano sponge.

7. The heat preservation device according to claim 2, characterized in that, The first insulation layer and the second insulation layer are bonded and fixed together with adhesive.

8. The heat preservation device according to claim 2, characterized in that, The thickness of the first insulation layer is between 10 mm and 12 mm, and the thickness of the second insulation layer is between 1 mm and 3 mm.

9. The heat preservation device according to claim 1, characterized in that, The foamed material and the porous material are physically mixed to form the first insulation component.

10. The heat preservation device according to any one of claims 1 to 9, characterized in that, The porous material includes at least one of aerogel and porous silicon.

11. The heat preservation device according to claim 10, characterized in that, The aerogel includes at least one of silica aerogel and graphene aerogel.

12. The heat preservation device according to claim 10, characterized in that, The porous silicon includes porous vacuum silicon.

13. The heat preservation device according to any one of claims 1 to 9, characterized in that, The foaming material includes at least one of polyurethane and polystyrene.

14. The heat preservation device according to any one of claims 1 to 9, characterized in that, The container further includes a second wall connected to the first wall. The second wall includes a second inner shell and a second outer shell, with a second gap between the second inner shell and the second outer shell. The insulation device further includes a second insulation component, which is disposed within the second gap. The material of the second insulation component includes at least one of foamed material and porous material.

15. The heat preservation device according to any one of claims 1 to 9, characterized in that, The heat preservation device further includes a capillary tube, a dryer filter, a condenser, and a compressor, wherein the evaporator, the compressor, the condenser, the dryer filter, and the capillary tube are connected end to end in sequence.

16. A terminal, characterized in that, The terminal includes the heat preservation device according to any one of claims 1 to 15.

17. The terminal according to claim 16, characterized in that, The terminal can be one of a vehicle, a robot, or a drone.

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