Cold chain box

Abstract

A cold chain box comprises a storage chamber and a temperature control system for providing cold or heat for the storage chamber. The temperature control system comprises an energy storage chamber internally provided with an energy storage device, an air duct communicating the energy storage chamber with the storage chamber, a first fan driving air to flow between the energy storage chamber and the storage chamber, a cold supply assembly providing cold for the energy storage device, and a heat supply assembly providing heat for the energy storage device. The cold chain box can start the cold supply assembly in a high-temperature environment to store cold for the energy storage device and continuously supply cold for the storage chamber. The heat supply assembly can be started in a low-temperature environment to store heat for the energy storage device and continuously supply heat for the storage chamber; on one hand, the temperature regulation and control range is expanded, and the types of refrigerated or transported articles are expanded; and on the other hand, cold supply and heat supply can be flexibly switched in the transportation process according to the change of the environment temperature, the temperature of the storage chamber is always maintained at the temperature necessary for keeping the goods fresh and alive, and the transportation of the goods breaks through the seasonal and regional limitation.

Description

Technical Field

[0001] The utility model relates to the field of cold chain, and in particular to a cold chain box with precise temperature control. Background Art

[0002] Cold chain boxes can provide a low-temperature environment for goods and can transport fresh products, medicines, vaccines, etc. Among them, medicines and vaccines have the highest temperature requirements. If they exceed their appropriate refrigeration temperature, they may become inactivated and lose their medicinal efficacy.

[0003] However, the existing cold chain boxes can only provide limited refrigeration temperatures. Not only can they only transport a single product, but they can also only transport goods in concentrated areas where the temperature difference is not much.

[0004] In view of this, it is necessary to provide an improved cold chain box to solve the above technical problems. Utility Model Content

[0005] The utility model provides a cold chain box, which optimizes the temperature control system and expands the temperature control adjustment range thereof.

[0006] In order to achieve one of the above-mentioned purposes of the utility model, the utility model adopts the following technical solutions:

[0007] A cold chain box, comprising a storage chamber and a temperature control system for providing cold or hot air to the storage chamber, wherein the temperature control system comprises:

[0008] An energy storage room, which is equipped with an energy storage device;

[0009] an air duct, connecting the energy storage chamber and the storage chamber;

[0010] at least one first fan, driving air to flow between the energy storage chamber and the storage chamber;

[0011] A cooling component for providing cooling to the energy storage device;

[0012] A heating component provides heat to the energy storage device.

[0013] Optionally, the energy storage device includes a shell surrounding a cold storage chamber, a cold storage material located in the cold storage chamber, and a pipeline running through the cold storage chamber.

[0014] Optionally, the cooling assembly includes a compressor, a condenser, a throttling element and an evaporator, and the evaporator includes an evaporation tube;

[0015] The heating component includes an electric heating tube;

[0016] One of the evaporation tube and the electric heating tube is located in the pipeline, and the other is located between adjacent energy storage devices.

[0017] Optionally, the shell is cylindrical, a plurality of the energy storage devices are arranged axially in parallel, an air channel for air circulation is formed between two or more adjacent energy storage devices, one of the evaporation tube or the electric heating tube is located in the pipe, and the other is located in the air channel.

[0018] Optionally, the energy storage device includes a shell surrounding a cold storage cavity, a cold storage material located in the cold storage cavity, and an air channel for air circulation is formed between two or more adjacent energy storage devices;

[0019] The cooling assembly comprises a compressor, a condenser, a throttling element and an evaporator, wherein the evaporator comprises an evaporation tube;

[0020] The heating component includes an electric heating tube;

[0021] The evaporation tube is located in a part of the air passage, and the electric heating tube is located in another part of the air passage.

[0022] Optionally, the evaporation tubes and the electric heating tubes are evenly distributed in a plurality of air channels, and the evaporation tubes and the electric heating tubes are arranged alternately.

[0023] Optionally, the air duct includes a first air duct extending from the energy storage chamber to the top of the storage chamber, a second air duct located at the top of the storage chamber, and a third air duct located at the bottom of the storage chamber and connecting the storage chamber and the energy storage chamber, and the first fan is located in the second air duct.

[0024] Optionally, the storage chamber is provided with a first air duct plate forming the first air duct with the side wall of the storage chamber, a second air duct plate forming the second air duct with the top of the storage chamber, and a third air duct plate assembly located at the bottom of the storage chamber; the third air duct plate assembly includes a base plate, a plurality of ribs located on the base plate, and a cover plate located on the ribs, the cover plate is provided with a return air outlet, and the third air duct is formed between the cover plate and the base plate; the second air duct plate is provided with a plurality of air outlets or the first fan is installed on the second air duct plate.

[0025] Optionally, the temperature control system further includes an auxiliary heating component located in the storage chamber, and the auxiliary heating component includes an electric heater and a second fan located in the storage chamber.

[0026] Optionally, the auxiliary heating component is located at the bottom of the storage chamber, and the angle between the air outlet direction of the second fan and the horizontal plane is 30° to 85°.

[0027] Optionally, the auxiliary heating assembly further includes a wind hood, and the wind hood is provided with ventilation holes corresponding to the second fan.

[0028] Optionally, the cold chain box also includes an electronic control system, which includes a first temperature sensor for detecting the temperature inside the storage room, a second temperature sensor for detecting the temperature inside the energy storage room, and a controller, and the controller is communicatively connected to the temperature control system.

[0029] Optionally, the cold chain box also includes an electronic control system, which includes a rechargeable battery and a charging port electrically connected to the rechargeable battery, and the rechargeable battery is electrically connected to the temperature control system; and / or the electronic control system includes a mains power interface, and the mains power interface is electrically connected to the temperature control system.

[0030] Optionally, the rechargeable battery is located between the energy storage chamber and the storage chamber.

[0031] The beneficial effects of the utility model are as follows: the temperature control system of the cold chain box can start the cooling component in a high-temperature environment to store cold in the energy storage device, and continuously supply cold to the storage room through the energy storage device; it can also start the heating component in a low-temperature environment to store heat in the energy storage device, and continuously supply heat to the storage room through the energy storage device; on the one hand, the range of temperature control is expanded, and the types of items that can be refrigerated or transported are expanded; on the other hand, it can flexibly switch between cooling and heating according to changes in ambient temperature during transportation, so that the temperature of the storage room can always be maintained at the necessary temperature for keeping the goods fresh and alive, and the transportation of goods breaks through seasonal and regional restrictions. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a front view of a stereogram of the cold chain box of the utility model;

[0033] Figure 2 for Figure 1 Cross-sectional view along AA direction;

[0034] Figure 3 for Figure 1 Cross-sectional view along direction BB;

[0035] Figure 4 for Figure 1 Cross-sectional view along CC direction;

[0036] Figure 5 for Figure 1 The three-dimensional image of the cold chain box shown has the enclosure of the non-insulated area removed;

[0037] Figure 6 for Figure 1 The schematic diagram of the cold chain box shown is a diagram with part of the box body removed;

[0038] Figure 7 for Figure 1 The schematic diagram of the cold chain box shown is a diagram after removing the box body around the storage room;

[0039] Figure 8 for Figure 7 Schematic diagram after removing the structural elements in the non-insulated area;

[0040] Fig. 9 for Figure 7 Exploded view after removing the second air duct plate;

[0041] Fig.10 This is a schematic diagram of the cooperation between the energy storage device and the evaporation tube in one embodiment of the utility model;

[0042] Fig.11 It is a schematic diagram of the coordination of the energy storage device, the evaporation tube, and the heating component in one embodiment of the utility model;

[0043] Fig.12 is a schematic diagram of an auxiliary heating component;

[0044] Fig.13 for Fig.12 Schematic diagram after removing the wind shield.

[0045] Among them, 100-cold chain box, 1-box, 11-insulation area, 12-non-insulation area, 13-enclosure, 2-storage room, 3-temperature control system, 31-energy storage room, 32-energy storage device, 33-air duct, 331-first air duct, 332-second air duct, 333-third air duct, 334-first air duct plate, 335-second air duct plate, 336-third air duct plate assembly, 3361-bottom plate, 3362-convex rib, 3363-cover plate , 3364-return air outlet, 3365-pad, 337-air guide strip, 34-first fan, 35-cooling component, 351-compressor, 352-condenser, 353-evaporator, 36-heating component, 37-auxiliary heating component, 371-electric heater, 372-second fan, 373-wind hood, 4-electronic control system, 41-first temperature sensor, 42-second temperature sensor, 43-controller, 44-rechargeable battery. DETAILED DESCRIPTION

[0046] The present invention will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0047] In the various drawings of the present invention, for the convenience of illustration, some dimensions of structures or parts are exaggerated relative to other structures or parts, and therefore, are only used to illustrate the basic structure of the subject matter of the present invention.

[0048] like Figures 1 to 13As shown, a cold chain box 100 of a preferred embodiment of the utility model includes a box body 1, a storage chamber 2 located in the box body 1, a temperature control system 3 for providing cold or heat to the storage chamber 2, and an electric control system 4 communicatively connected to the temperature control system 3.

[0049] The insulation performance of different parts of the box body 1 is different to meet the requirements of insulation performance or heat dissipation performance of different areas or different components. In the utility model, the box body 1 is provided with an insulation area 11 and a non-insulation area 12, and the non-insulation area 12 is connected to the external environment. Preferably, a panel 13 is provided in the non-insulation area 12, and a heat dissipation hole is provided on the panel 13. The storage room 2 and the components of the temperature control system 3 that need to be insulated are located in the insulation area to prevent cold or heat leakage. The components of the electric control system 4 and the temperature control system 3 that need to dissipate heat outward are located in the non-insulation area and dissipate heat outward when working.

[0050] In the present invention, the heat preservation area includes a storage room 2 and an energy storage room 31 located below the storage room 2, and the non-heat preservation area and the energy storage room 31 are located side by side at the bottom of the storage room 2. The temperature control system 3 and the electric control system 4 are both located below the energy storage room 31, which lowers the center of gravity of the entire cold chain box 100 and facilitates empty box lifting.

[0051] The storage room 2 is used to store items to be stored and transported, including but not limited to fresh products, medical products, vaccines, etc.

[0052] The temperature control system 3 includes an energy storage chamber 31, an energy storage device 32 located in the energy storage chamber 31, an air duct 33 connecting the energy storage chamber 31 and the storage chamber 2, at least one first fan 34 driving air to circulate between the energy storage chamber 31 and the storage chamber 2, a cooling component 35 for providing cold to the energy storage device 32, and a heating component 36 for providing heat to the energy storage device 32.

[0053] The temperature control system 3 of the cold chain box 100 selects one of the cooling component 35 and the heating component 36 to operate according to the transportation requirements of the goods and the transportation environment temperature, so as to store cold or heat for the energy storage device 32. Specifically, the cooling component 35 can be started in a high temperature environment to store cold for the energy storage device 32, and then the energy storage device 32 can be used to continuously supply cold to the storage room 2 during transportation to maintain a low temperature environment; the heating component 36 can also be started in a low temperature environment to store heat for the energy storage device 32, and then the energy storage device 32 can be used to continuously supply heat to the storage room 2 during transportation.

[0054] On the one hand, the scope of temperature control is expanded, and the types of items that can be refrigerated or transported are expanded. Not only different fresh products can be transported, but also temperature-sensitive biological preparations such as medicines and vaccines can be transported; on the other hand, during transportation, according to changes in ambient temperature, it is possible to flexibly switch between cooling and heating, so that the temperature of storage room 2 can always be maintained at the necessary temperature for keeping the goods fresh and alive, and the transportation of goods has broken through seasonal and regional restrictions.

[0055] Specifically, no matter in spring, summer, autumn or winter, or in different ambient temperatures across the country, the cold chain box 100 can maintain the temperature in the storage room 2 at the temperature required by the items. Even if the temperature difference between the departure place and the destination is large, one place requires cooling (heating) and the other place requires heating (cooling), the cold chain box 100 of the utility model can also do the job. For example, in winter, the items are transported from the Northeast to Hainan, the temperature of the departure place is -20°C, and the temperature of the destination is close to 30°C. Before departure, start the heating component 36 to accumulate heat in the energy storage device 32, and provide heat to the storage room 2 in the first half; when the ambient temperature is moderate, preferably when the difference with the target temperature of the storage room 2 is within 5°C, start the cooling component 35 to store cold in the energy storage device 32, so as to provide coldness to the storage room 2 in the second half.

[0056] The energy storage device 32 includes a shell surrounding a cold storage chamber, a cold storage material located in the cold storage chamber, and a pipeline running through the cold storage chamber.

[0057] In this embodiment, the shell of the energy storage device 32 is preferably cylindrical, and a plurality of energy storage devices 32 are arranged in an array, for example, a plurality of energy storage devices 32 are arranged in an axially parallel manner, and an air channel for air circulation is formed between two or more adjacent energy storage devices 32, and the energy storage device 32 fully exchanges heat with the air passing through the air channel.

[0058] Preferably, two adjacent rows of energy storage devices 32 and / or two adjacent columns of energy storage devices 32 are closely arranged in a staggered manner, the energy storage devices 32 are in line contact with each other, and the air channel is formed between three adjacent energy storage devices 32. With such a design, the maximum number of energy storage devices 32 can be installed in a limited space, thereby increasing the cold storage capacity; and the energy storage devices 32 still maintain a large exposed area, and the heat exchange speed is fast.

[0059] The phase change temperature of the cold storage material is -20°C to 20°C, preferably -10°C to 10°C, and more preferably -5°C to 5°C. The temperature control range is large. It can store heat in a low-temperature environment and store cold in a high-temperature environment, thereby realizing two-way temperature regulation of cooling and heating.

[0060] The pipeline runs through the cold storage cavity and is immersed in the cold storage material, and can fully exchange heat with the cold storage material. In addition, the pipeline is preferably a straight pipeline, which is convenient for installation with the cooling component 35 or the heating component 36.

[0061] The cooling assembly 35 includes a compressor 351, a condenser 352, a throttling element and an evaporator 353, wherein the evaporator 353 includes an evaporation tube. The condenser 352 is an air-cooled condenser, and the compressor 351 and the condenser 352 are located in a non-insulated area, and heat is dissipated outwards through the heat dissipation holes on the enclosure 13; the evaporation tube is located in the energy storage chamber 31 to provide cooling for the energy storage device 32.

[0062] The heating component 36 includes a plurality of electric heating tubes, which can quickly provide heat to the energy storage device 32 .

[0063] One of the evaporation tube and the electric heating tube is located in the pipeline to supply cooling or heating to the cold storage material from the inside; the other is located between adjacent energy storage devices 32 to supply cooling or heating to the cold storage material from the outside. Considering that there are more application scenarios for cooling than for heating, it is preferred that the evaporation tube is passed through the pipeline, and the electric heating tube is located between adjacent energy storage devices 32. The electric heating tube is preferably located in the air channel, so as not to affect the arrangement of the energy storage device 32. Of course, the electric heating tube can also be located in the pipeline, and the evaporation tube can be located between adjacent energy storage devices 32. The evaporation tube is preferably located in the air channel.

[0064] In addition, the evaporation tube or the electric heating tube located in the pipeline is in close contact with the pipeline, reducing thermal resistance and improving heat exchange between it and the cold storage material. Correspondingly, the evaporation tube or the electric heating tube located outside the energy storage device 32 is in close contact with the outer shell of the energy storage device 32 to improve heat exchange efficiency, thereby increasing the speed of cold or heat storage.

[0065] In other embodiments, the energy storage device 32 includes a shell surrounding a cold storage chamber, a cold storage material located in the cold storage chamber, and no pipe is provided. In this case, the evaporation tube is located in part of the air passage, and the electric heating tube is located in another part of the air passage, and both provide cooling or heating to the energy storage device 32 from the outside. The shape of the shell and the arrangement order of the energy storage device 32 are the same as those in the above embodiment. For example, the shell is cylindrical, and a plurality of the energy storage devices 32 are arranged in axial parallel manner, and an air passage for air circulation is formed between two or more adjacent energy storage devices 32, which will not be described in detail.

[0066] Preferably, the evaporation tubes and the electric heating tubes are evenly distributed in a plurality of air channels, and the evaporation tubes and the electric heating tubes are arranged alternately, so that the energy storage device 32 at any position can realize cold storage or heat storage.

[0067] The air duct 33 includes a first air duct 331 extending from the energy storage chamber 31 to the top of the storage chamber 2, a second air duct 332 located at the top of the storage chamber 2, and a third air duct 333 located at the bottom of the storage chamber 2 and connecting the storage chamber 2 and the energy storage chamber 31. The first fan 34 is located in the second air duct 332 to provide cold air to the storage chamber 2 from the top.

[0068] Specifically, the storage chamber 2 is provided with a first air duct plate 334 that forms the first air duct 331 with the side wall of the storage chamber 2, a second air duct plate 335 that forms the second air duct 332 with the top of the storage chamber 2, and a third air duct plate assembly 336 located at the bottom of the storage chamber 2.

[0069] A plurality of air guide strips 337 are further provided between the first air duct plate 334 and the side wall of the storage chamber 2. The air guide strips 337 extend in the up-down direction to assist in fixing the first air duct plate 334 and divide the first air duct 331 into a plurality of sub-air ducts 33 arranged along its width direction, so that the air volume in different areas is uniform.

[0070] The second air duct plate 335 is provided with a plurality of air outlets or the first fan 34 is installed on the second air duct plate 335. In a preferred embodiment, the temperature control system 3 includes at least five first fans 34, one of which is located in the middle of the top and four are located at the four corners of the top, so that the temperature in the entire storage room 2 is uniform.

[0071] The third air duct plate assembly 336 includes a bottom plate 3361, a plurality of convex ribs 3362 located on the bottom plate 3361, and a cover plate 3363 located on the convex ribs 3362. The cover plate 3363 is provided with a return air port 3364, and the third air duct 333 is formed between the cover plate 3363 and the bottom plate 3361. When the convex ribs 3362 extend along the air path direction, air passes through between the convex ribs 3362; when the convex ribs 3362 are arranged in a perpendicular or other cross manner to the air path direction, the convex ribs 3362 are provided with ventilation holes penetrating along the air path direction, and air passes through the ventilation holes.

[0072] Preferably, a pad 3365 is provided above the third air duct 333 plate, and a return air port 3364 corresponding to the cover plate 3363 is provided on the pad 3365 to facilitate disassembly and cleaning.

[0073] The air in the energy storage chamber 31 flows upward from the first air duct 331 to the second air duct 332, and enters the storage chamber 2 from top to bottom through the air outlet or the first fan 34. The air after heat exchange with the articles enters the third air duct 333 from the return air duct 3364, and then returns to the energy storage chamber 31. After heat exchange with the energy storage device 32, it enters the storage chamber 2 again through the first air duct 331 and the second air duct 332. This reciprocating process continuously provides cooling or heating to the storage chamber 2.

[0074] Furthermore, the temperature control system 3 also includes an auxiliary heating component 37 for assisting in regulating the temperature in the storage chamber 2. The temperature in the storage chamber 2 may be low sometimes. For example, when the cooling component 35 is started to store cold, the temperature in the storage chamber 2 may be low. At this time, the auxiliary heating component 37 may be started to heat the storage chamber 2 in time to prevent the temperature from being too low, so as to prevent fresh food from being frozen and medicines or vaccines from becoming ineffective.

[0075] The auxiliary heating component 37 is located in the storage chamber 2, and includes an electric heater 371 and a second fan 372 located on one side of the electric heater 371. The second fan 372 drives the air in the storage chamber 2 to flow through the electric heater 371, so that the temperature in the storage chamber 2 rises.

[0076] Preferably, the auxiliary heating component 37 is located at the bottom of the storage chamber 2, and the angle between the air outlet direction of the second fan 372 and the horizontal plane is 30°C to 85°C, and the hot air is blown obliquely upward into the storage chamber 2, so that the heat can reach the top of the storage chamber 2 and provide heat to the goods in the entire storage chamber 2.

[0077] In this embodiment, the auxiliary heating component 37 is fixed to the bottom of the second air plate, and the auxiliary heating component 37 is higher than the third air duct plate component 336. The air in the storage room 2 enters the auxiliary heating component 37 from below, and the air circulates smoothly.

[0078] The auxiliary heating assembly 37 also includes a hood 373 , which is provided with ventilation holes corresponding to the second fan 372 to prevent debris in the storage chamber 2 from entering the auxiliary heating assembly 37 and contaminating the second fan 372 and the electric heater 371 .

[0079] The electric control system 4 includes a first temperature sensor 41 for detecting the temperature in the storage chamber 2, a second temperature sensor 42 for detecting the temperature in the energy storage chamber 31, and a controller 43. The controller 43 is located in a non-insulated area for easy operation and dissipates heat outward. The controller 43 is in communication connection with the first temperature sensor 41, the second temperature sensor 42, and the temperature control system 3. The operation of the temperature control system 3 is controlled by the temperature in the storage chamber 2 and the temperature in the energy storage chamber 31, so that the storage chamber 2 is kept within a stable temperature range.

[0080] Furthermore, the electric control system 4 provides power to other components, and specifically can provide power through a rechargeable battery 44 and / or a mains power interface.

[0081] Preferably, the electric control system 4 includes a rechargeable battery 44 and a charging port electrically connected to the rechargeable battery 44, and the charging port is a plug port that can be pulled out of the box 1, or a plug port fixed on the box 1. The rechargeable battery 44 is electrically connected to the temperature control system 3, and no external power supply is required during the journey, and the normal operation of the temperature control system 3 can be ensured. The "electrical connection" here means that the rechargeable battery 44 is electrically connected to the components that need power supply during operation.

[0082] In the utility model, the rechargeable battery 44 is located between the energy storage chamber 31 and the storage chamber 2, that is, the rechargeable battery 44 is located above the energy storage chamber 31. On the one hand, the spatial layout is reasonable, and enough energy storage devices 32 can be installed in a limited space; on the other hand, the cold energy of the energy storage chamber 31 can be prevented from penetrating into the storage chamber 2, and the temperature in the storage chamber 2 can be prevented from being too low or too high; and the rechargeable battery 44 is in an environment with moderate temperature and relatively stable temperature, and its working temperature can be maintained with the help of the energy storage chamber 31, and its service life is long.

[0083] Preferably, the power supply system includes a mains power interface, which is electrically connected to the temperature control system 3; therefore, the cold chain box 100 can also be used as a collection box at the production site, as a turnover box in the sorting warehouse, and as a storage box at the destination. Specifically, the mains power interface can be a plug connector that can be pulled out from the non-insulated area, or a plug connector fixed on the box body 1, both of which can be connected to the mains power.

[0084] More preferably, the electric control system 4 includes both a rechargeable battery 44 and a mains interface. All power-consuming components can be powered by a rechargeable battery or a mains interface. The recommended usage is: during non-transportation, use the mains to operate to complete cold storage or heat storage, cold supply or heat supply; on the way, use the rechargeable battery 44 to power the first fan 34, the second fan 372, etc. to maintain the normal operation of the cold chain box 100.

[0085] In summary, the cold chain box 100 can start the cooling component 35 in a high temperature environment to store cold in the energy storage device 32, and continuously supply cold to the storage chamber 2 through the energy storage device 32; it can also start the heating component 36 in a low temperature environment to store heat in the energy storage device 32, and continuously supply heat to the storage chamber 2 through the energy storage device 32; on the one hand, the range of temperature control is expanded, and the types of items that can be refrigerated or transported are expanded; on the other hand, during transportation, according to changes in ambient temperature, it can flexibly switch between cooling and heating, so that the temperature of the storage chamber 2 can always be maintained at the necessary temperature for keeping the goods fresh and alive, and the transportation of goods breaks through seasonal and regional restrictions.

[0086] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0087] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the utility model. They are not intended to limit the protection scope of the utility model. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A cold chain box, comprising a storage room and a temperature control system for providing cold or hot air to the storage room, characterized in that: The temperature control system comprises: An energy storage room, which is equipped with an energy storage device; an air duct, connecting the energy storage chamber and the storage chamber; at least one first fan, driving air to flow between the energy storage chamber and the storage chamber; A cooling component for providing cooling to the energy storage device; A heating component provides heat to the energy storage device.

2. The cold chain box according to claim 1, characterized in that: The energy storage device comprises a shell surrounding a cold storage chamber, a cold storage material located in the cold storage chamber, and a pipeline running through the cold storage chamber.

3. The cold chain box according to claim 2, characterized in that: The cooling assembly comprises a compressor, a condenser, a throttling element and an evaporator, wherein the evaporator comprises an evaporation tube; The heating component includes an electric heating tube; One of the evaporation tube and the electric heating tube is located in the pipeline, and the other is located between adjacent energy storage devices.

4. The cold chain box according to claim 3, characterized in that: The shell is cylindrical, and the plurality of energy storage devices are arranged axially in parallel. An air passage for air circulation is formed between two or more adjacent energy storage devices. One of the evaporation tube or the electric heating tube is located in the pipe, and the other is located in the air passage.

5. The cold chain box according to claim 1, characterized in that: The energy storage device includes a shell surrounding a cold storage cavity, a cold storage material located in the cold storage cavity, and an air passage for air circulation is formed between two or more adjacent energy storage devices; The cooling assembly comprises a compressor, a condenser, a throttling element and an evaporator, wherein the evaporator comprises an evaporation tube; The heating component includes an electric heating tube; The evaporation tube is located in a part of the air passage, and the electric heating tube is located in another part of the air passage.

6. The cold chain box according to claim 5, characterized in that: The evaporation tubes and the electric heating tubes are evenly distributed in a plurality of air channels, and the evaporation tubes and the electric heating tubes are arranged alternately.

7. The cold chain box according to claim 1, characterized in that: The air duct includes a first air duct extending from the energy storage chamber to the top of the storage chamber, a second air duct located at the top of the storage chamber, and a third air duct located at the bottom of the storage chamber and connecting the storage chamber and the energy storage chamber. The first fan is located in the second air duct.

8. The cold chain box according to claim 7, characterized in that: The storage chamber is provided with a first air duct plate that forms the first air duct with the side wall of the storage chamber, a second air duct plate that forms the second air duct with the top of the storage chamber, and a third air duct plate assembly located at the bottom of the storage chamber; the third air duct plate assembly includes a base plate, a plurality of convex ribs located on the base plate, and a cover plate located on the convex ribs, the cover plate is provided with a return air outlet, and the third air duct is formed between the cover plate and the base plate; the second air duct plate is provided with a plurality of air outlets or the first fan is installed on the second air duct plate.

9. The cold chain box according to claim 1, characterized in that: The temperature control system also includes an auxiliary heating component located in the storage chamber, and the auxiliary heating component includes an electric heater and a second fan located in the storage chamber.

10. The cold chain box according to claim 9, characterized in that: The auxiliary heating component is located at the bottom of the storage chamber, and the angle between the air outlet direction of the second fan and the horizontal plane is 30° to 85°.

11. The cold chain box according to claim 9, characterized in that: The auxiliary heating component also includes a wind cover, and the wind cover is provided with ventilation holes corresponding to the second fan.

12. The cold chain box according to claim 1, characterized in that: The cold chain box also includes an electric control system, which includes a first temperature sensor for detecting the temperature inside the storage room, a second temperature sensor for detecting the temperature inside the energy storage room, and a controller, and the controller is communicatively connected to the temperature control system.

13. The cold chain box according to claim 1, characterized in that: The cold chain box also includes an electronic control system, which includes a rechargeable battery and a charging port electrically connected to the rechargeable battery, and the rechargeable battery is electrically connected to the temperature control system; and / or the electronic control system includes a mains power interface, and the mains power interface is electrically connected to the temperature control system.

14. The cold chain box according to claim 13, characterized in that: The rechargeable battery is located between the energy storage chamber and the storage chamber.

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