Cold chain transport compartment and cold chain transport tool

Abstract

The utility model relates to the technical field of cold chain transportation, and particularly discloses a cold chain transportation compartment which comprises a compartment body, a refrigerating device, an air supply duct, an air return duct and a fan. Wherein the compartment body is provided with a first compartment chamber and a second compartment chamber which are isolated from each other; the air supply duct is arranged in the compartment body, an air inlet communicated with the first compartment chamber is formed in the air supply duct, and an air supply outlet communicated with the second compartment chamber is formed in the air supply duct; the air return duct is arranged in the compartment body, the air return duct is provided with an air return port communicated with the second compartment chamber, the air return duct is provided with an air outlet communicated with the first compartment chamber, and the air outlet is arranged close to the air inlet; the fan is used for guiding air in the first compartment and at least part of return air of the air outlet into the air supply duct and sending the air into the second compartment. The cold chain transport compartment is high in space utilization rate, capable of providing larger cargo capacity and low in cost and energy consumption. The utility model further discloses a cold chain transportation tool which also has the technical effects.

Description

Technical Field

[0001] The utility model relates to the field of cold chain technology, and more specifically, to a cold chain transport compartment and a cold chain transport tool. Background Art

[0002] Cold chain transportation refers to the transportation process in which the goods are kept at a certain temperature. The cold chain transportation mode can be road transportation, water transportation, rail transportation, air transportation, or a combination of multiple transportation modes.

[0003] The cold chain transport compartment is the main structure for storing goods during cold chain transportation. In order to meet the transportation of goods that need to be stored at different temperatures, the cold chain transport compartment may include two compartments, and the temperatures of the two compartments are different. A common way to adjust the temperature of the two compartments is to set evaporators in the two compartments respectively, and the two evaporators adjust the temperature in the corresponding compartments respectively.

[0004] In the process of implementing the utility model, the inventors found that there are at least the following problems in the prior art:

[0005] Dual temperature zones are achieved through dual evaporators, which take up a lot of space, affect the cargo capacity of the compartment, and are costly and energy intensive. Utility Model Content

[0006] In view of this, an object of the present invention is to provide a cold chain transport compartment and a cold chain transport tool, which can improve space utilization and reduce costs.

[0007] In order to achieve the above object, the utility model provides the following technical solutions:

[0008] A cold chain transport compartment comprises a compartment body, wherein the compartment body is provided with a first compartment and a second compartment which are isolated from each other, wherein the working temperature of the first compartment is lower than the working temperature of the second compartment, and further comprises:

[0009] A refrigeration device is provided in the compartment, and a cold air outlet of the refrigeration device is connected to the first compartment;

[0010] An air supply duct is provided in the compartment, and one end of the air supply duct extends to the first compartment, and the other end extends to the second compartment, and the air supply duct is connected to the first compartment and is provided with an air inlet, and is connected to the second compartment and is provided with an air supply outlet;

[0011] a return air duct, arranged in the compartment, and one end of the return air duct extends to the first compartment, and the other end extends to the second compartment, the return air duct is connected to the second compartment and is provided with a return air port, and is connected to the first compartment and is provided with an air outlet, and the air outlet is arranged close to the air inlet;

[0012] The fan is used to guide the gas in the first chamber and at least part of the return air from the air outlet into the air supply duct and then into the second chamber.

[0013] Optionally, the above-mentioned cold chain transport compartment further includes an adjusting device arranged at the air outlet, and the adjusting device is used to adjust the air volume delivered from the air outlet to the air inlet.

[0014] Optionally, in the above-mentioned cold chain transport compartment, the adjustment device includes a push-pull plate slidably arranged on the air outlet, and the push-pull plate can be locked at different positions of the sliding stroke to block the air outlet to different degrees.

[0015] Optionally, in the above-mentioned cold chain transport compartment, the adjusting device includes a rotatable baffle provided at the air outlet, and the baffle can be locked at different angles relative to the inlet of the fan.

[0016] Optionally, in the above-mentioned cold chain transport compartment, the fan is arranged at the air inlet.

[0017] Optionally, in the above-mentioned cold chain transport compartment, the end of the air supply duct abuts against the air outlet side of the fan, and the air inlet is provided on the end surface of the air supply duct located at one end of the first compartment and opposite to the outlet of the fan;

[0018] The air outlet is arranged on the bottom surface of the return air duct located at one end of the first chamber, and the inlet of the fan is arranged downward.

[0019] Optionally, in the above-mentioned cold chain transport compartment, the supply air duct and the return air duct are arranged adjacent to each other.

[0020] Optionally, the above-mentioned cold chain transport compartment includes a first air duct partition and a second air duct partition, one side edge of the first air duct partition is connected to the top wall of the compartment, and the other side edge is connected to the side wall of the compartment, one side edge of the second air duct partition is connected to the first air duct partition, and the other side edge is connected to the top wall, the side wall, or one of the connection points between the top wall and the side wall, and the second air duct partition divides the space enclosed by the first air duct partition and the compartment into the supply air duct and the return air duct.

[0021] Optionally, in the above-mentioned cold chain transport compartment, the air inlet is arranged close to the cold air outlet.

[0022] Optionally, in the above-mentioned cold chain transport compartment, a heating device is provided in the air supply duct, and the heating device is provided at the part of the air supply duct located in the second compartment or at the connection between the first compartment and the second compartment.

[0023] Compared with the prior art, the cold chain transport compartment and cold chain transport tool provided by the utility model have at least the following beneficial effects:

[0024] The utility model provides a cold chain transport compartment, comprising a compartment, a refrigeration device, an air supply duct, an air return duct and a fan. The compartment is provided with a first compartment and a second compartment which are isolated from each other, the refrigeration device is provided in the compartment, and the cold air outlet of the refrigeration device is connected to the first compartment to adjust the temperature in the first compartment; the air supply duct is provided in the compartment, and one end of the air supply duct extends to the first compartment, and the other end extends to the second compartment, the air supply duct connected to the first compartment is provided with an air inlet, and the air supply duct connected to the second compartment is provided with an air supply outlet; the return duct is provided in the compartment, and one end of the return duct extends to the first compartment, and the other end extends to the second compartment, the return duct connected to the second compartment is provided with a return air outlet, and the return duct connected to the first compartment is provided with an air outlet, and the air outlet is arranged close to the air inlet; the fan is used to guide the gas in the first compartment and at least part of the return air at the air outlet into the air supply duct and send it into the second compartment.

[0025] By using the cold chain transport compartment provided by the present application, the refrigeration device can refrigerate the first compartment. The gas in the first compartment enters the second compartment through the air supply duct under the action of the fan to cool the second compartment. The return air of the second compartment flows back through the return air duct, and at least part of the air outlet of the return air duct enters the air supply duct again to mix with the air inlet of the first compartment. Since the temperature of the return air is relatively high, the air outlet temperature of the air supply duct is increased after mixing, so that the temperature of the second compartment is higher than that of the first compartment, that is, a multi-temperature zone distribution is formed, which more comprehensively covers the application requirements of different goods for different temperatures when the compartment is loaded. In summary, the cold chain transport compartment provided by the present application does not need to be provided with multiple refrigeration devices. The air outlet of a single refrigeration device can be used to achieve different temperature zones through the design of the air duct with a special structure. The space utilization rate is high, and a larger cargo capacity can be provided. Compared with multiple refrigeration devices, the cost is significantly reduced, and the energy consumption is reduced, saving energy. At the same time, the return air is introduced into the air supply duct, which reduces the influence of the return air on the temperature of the first compartment.

[0026] In order to achieve the above purpose, the utility model also provides a cold chain transport tool, which includes any of the above cold chain transport compartments. Since the above cold chain transport compartment has the above technical effects, the cold chain transport tool having the cold chain transport compartment should also have corresponding technical effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1This is a schematic diagram of the structure of a cold chain transport compartment in a specific embodiment of the utility model;

[0029] Figure 2 for Figure 1 A top-down perspective diagram of

[0030] Figure 3 for Figure 1 Schematic diagram of the structure of the medium temperature control system (refrigeration device not shown).

[0031] The following are marked in the accompanying drawings:

[0032] Box 100, refrigeration device 200, air supply duct 300, return air duct 400, fan 500, first air duct partition 600, second air duct partition 700, heating device 800, mounting frame 900;

[0033] A first compartment 110, a second compartment 120, a heat insulation board 130, a top wall 140, and a side wall 150;

[0034] Air conditioning outlet 210;

[0035] Air inlet 310, air outlet 320;

[0036] Return air port 410 , air outlet 420 , and fan outlet 510 . DETAILED DESCRIPTION

[0037] The embodiment of the utility model discloses a cold chain transport compartment and a cold chain transport tool to achieve multi-temperature zone control in the compartment to meet the different storage temperature requirements of different goods. The space utilization rate is high to provide a larger cargo capacity, and the cost and energy consumption are low, thereby saving energy.

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] The cold chain transport compartment provided by the present application can be used for cold chain transport tools. Cold chain transport tools include but are not limited to cold chain transport vehicles, cold chain transport aircraft, cold chain transport ships, etc. The cold chain transport vehicle is mainly a cold chain transport truck, and of course the cold chain transport vehicle can also be a transport vehicle such as a train. Correspondingly, the cold chain transport compartment includes but is not limited to the compartment of the cold chain transport vehicle, and can also be a transport compartment arranged on a transport aircraft, a transport ship, etc. The cold chain transport compartment provided by the present application includes a compartment and a temperature control system, and the compartment is at least separated into two compartments, such as the first compartment and the second compartment separated from each other. Of course, in some embodiments, the third compartment or more compartments can also be separated. Generally speaking, the target temperature of the temperature control of the first compartment and the second compartment is not the same, and the former has a lower temperature, that is, the working temperature of the first compartment is lower than the working temperature of the second compartment. The first compartment and the second compartment can be expressed in at least the following ways: as one way, the first compartment is a freezer and the second compartment is a refrigerator; as another way, the first compartment is a deep freezer and the second compartment is a refrigerator or a fresh ice compartment; as another way, the temperature control temperature of the first compartment is about minus 18 degrees Celsius, and the temperature control temperature of the second compartment is 2 to 6 degrees Celsius, and it is required that neither place can be lower than 0 degrees Celsius; as another way, the temperature of the first compartment is 2 to 10 degrees Celsius lower than the temperature of the second compartment, specifically lower than 5 to 8 degrees Celsius. The compartment body separates the first compartment and the second compartment, or separates more compartments, generally in the front and rear direction of the compartment, of course, it can also be separated in the up and down direction, left and right direction. It should be noted that the forward direction in the context is the direction of travel of the cold chain transport vehicle.

[0040] The temperature control system includes a refrigeration device, an air supply duct, a return air duct and a fan. The refrigeration device is used to cool the first compartment, the fan is used to introduce the gas in the first compartment into the air supply duct and send it to the second compartment to cool the second compartment, and the return air in the second compartment flows back to the first compartment through the return air duct. By arranging the air outlet of the return air duct close to the air inlet of the air supply duct, at least part of the return air in the return air duct can enter the air supply duct again to increase the temperature of the gas sent to the second compartment. In the following embodiments, the structure of the temperature control system is mainly described.

[0041] In some embodiments, see Figure 1-Figure 3The cold chain transport compartment provided in the present application includes a compartment 100, a refrigeration device 200, an air supply duct 300, an air return duct 400 and a fan 500. The compartment 100 is provided with an isolated first compartment 110 and a second compartment 120, and the first compartment 110 and the second compartment 120 can be separated by a heat insulation board 130 arranged in the compartment 100. The refrigeration device 200 is arranged in the compartment 100, and the cold air outlet 210 of the refrigeration device 200 is connected to the first compartment 110 to adjust the temperature in the first compartment 110. It can be understood that the refrigeration device 200 can be installed in the first compartment 110 or outside the first compartment 110. The cold air outlet 210 of the refrigeration device 200 is connected to the first compartment 110, which includes that the refrigeration device 200 is arranged in the first compartment 110, and its cold air outlet 210 is directly connected to the first compartment 110, and also includes that the refrigeration device 200 is arranged on the outer wall of the compartment 100, the compartment 100 is provided with a vent, and the cold air outlet 210 is arranged at the vent to communicate with the first compartment 110. The refrigeration device 200 is generally a mechanical refrigeration, and the specific refrigeration device 200 can be an evaporator, and of course it can also be other mechanical refrigeration equipment.

[0042] The air supply duct 300 is arranged in the compartment 100, and one end of the air supply duct 300 extends to the first compartment 110, and the other end extends to the second compartment 120. The air supply duct 300 communicates with the first compartment 110 and is provided with an air inlet 310, and the air supply duct 320 communicates with the second compartment 120. Specifically, the air supply duct 300 is provided with an air inlet 310 at the portion located in the first compartment 110, and is provided with an air supply duct 320 at the portion located in the second compartment 120. It should be noted that the air supply duct 300 extends to the first compartment 110, that is, reaches the first compartment 110, and may stop at the boundary of the first compartment 110, or may further extend in the first compartment 110. Similarly, the air supply duct 300 extends to the second compartment 120, that is, reaches the second compartment 120, and may stop at the boundary of the second compartment 120, or may further extend in the second compartment 120. Part of the air supply duct 300 is located in the first chamber 110, and part of it is located in the second chamber 120, so that the gas in the first chamber 110 can enter the air supply duct 300 through the air inlet 310 and be discharged from the air supply duct 320 along the air supply duct 300 into the second chamber 120. The number, shape and position of the air supply duct 320 can be set as needed, and are not specifically limited here.

[0043] The return air duct 400 is arranged in the compartment 100, and one end of the return air duct 400 extends to the first compartment 110, and the other end extends to the second compartment 120. The return air duct 400 communicates with the second compartment 120 and is provided with a return air port 410, and communicates with the first compartment 110 and is provided with an air outlet 420. Specifically, the portion of the return air duct 400 located in the second compartment 120 is provided with the return air port 410, and the portion located in the first compartment 110 is provided with the air outlet 420, and the air outlet 420 is arranged near the air inlet 310. Part of the return air duct 400 is located in the first compartment 110, and part of it is located in the second compartment 120, so that the gas in the second compartment 120 can enter the return air duct 400 through the return air port 410 and be discharged from the air outlet 420 along the return air duct 400. Since the air outlet 420 is arranged close to the air inlet 310, at least part of the air discharged from the air outlet 420 can re-enter the air supply duct 300. Since the return air in the return air duct 400 is hot air with a higher temperature after heat exchange with the goods, the gas in the second compartment 120, the wall surface of the compartment 100, etc., at least part of the return air is introduced into the air supply duct 300 and sent to the second compartment 120 again to increase the supply air temperature. The temperature of the second compartment 120 is higher than that of the first compartment 110. It can be understood that the air supply duct 300 and the return air duct 400 refer to channels that allow gas to pass through, which can be surrounded by a partial wall surface of the compartment 100, or surrounded by a separately arranged air duct partition, or surrounded by the air duct partition and the compartment 100. The air supply duct 300 and the return air duct 400 specifically extend along the arrangement direction of the first compartment 110 and the second compartment 120.

[0044] The fan 500 is used to guide the gas in the first chamber 110 and at least part of the return air from the air outlet 420 into the air supply duct 300 and send it into the second chamber 120. The fan 500 is arranged in the body 100, and can be arranged at the air inlet 310 of the air supply duct 300, or at the air supply outlet 320 of the air supply duct 300, or inside the air supply duct 300.

[0045] By using the cold chain transport compartment provided by the present application, the refrigeration device 200 can refrigerate the first compartment 110. The gas in the first compartment 110 enters the second compartment 120 through the air supply duct 300 under the action of the fan 500 to cool the second compartment 120, and the return air of the second compartment 120 flows back through the return air duct 400, and at least part of the air outlet of the return air duct 400 enters the air supply duct 300 again to mix with the air inlet of the first compartment 110. Since the temperature of the return air is relatively high, the air outlet temperature of the air supply duct 300 is higher than the temperature of the first chamber after mixing, so that the temperature of the second compartment 120 is higher than the temperature of the first compartment 110, that is, a multi-temperature zone distribution is formed to meet the different storage temperature requirements of different goods. In summary, the cold chain transport compartment provided by the present application does not need to be equipped with multiple refrigeration devices 200. Different temperature zones can be achieved by using the air outlet of a single refrigeration device 200 through a specially structured air duct design, which has high space utilization, can provide a larger cargo capacity, and significantly reduces costs compared to multiple refrigeration devices 200, while reducing energy consumption and saving energy. At the same time, the return air is introduced into the air supply duct 300, reducing the impact of the return air on the temperature of the first compartment 110.

[0046] In some embodiments, the first compartment 110 is arranged in front of the second compartment 120 to facilitate the installation of the refrigeration device 200 and other equipment in the mechanical refrigeration system where the refrigeration device 200 is located. Specifically, the refrigeration device 200 is installed on the side of the first compartment 110 away from the second compartment 120. In order to allow the first compartment 110 to have enough space to store more items, the refrigeration device 200 is arranged outside the first compartment 110, such as attached to the outside of the compartment 100, and the cold air outlet 210 is directed toward the first compartment 110, and is connected to the first compartment 110 through the vents opened on the compartment 100.

[0047] In some embodiments, the cold chain transport compartment further includes a regulating device disposed at the air outlet 420, and the regulating device is used to regulate the amount of air sent from the air outlet 420 to the air inlet 310. By providing the regulating device, the proportional regulation of the amount of air returned from the air outlet 420 entering the air inlet 310 again and the amount of air entering the air inlet 310 from the first compartment 110 can be achieved. When the temperature of the second compartment 120 needs to be increased, the regulating device increases the amount of air sent from the air outlet 420 to the air inlet 310, and when the temperature of the second compartment 120 needs to be lowered, the regulating device reduces the amount of air sent from the air outlet 420 to the air inlet 310. Therefore, by providing the regulating device, the temperature of the second compartment 120 can be regulated more accurately. The regulating device can specifically adjust the air volume of the return air from the air outlet 420 that re-enters the air inlet 310 and the proportion of the air volume that enters the first compartment 110 to achieve the regulation of the air volume supplied to the air inlet 310. It can also adjust the overall air volume of the air outlet 420 to achieve the regulation of the air volume supplied to the air inlet 310.

[0048] In some embodiments, the adjustment device includes a push-pull plate slidably arranged at the air outlet 420, and the push-pull plate can be locked at different positions of the sliding stroke to block the air outlet 420 to different degrees. That is, the push-pull plate can be locked at a position that blocks the air outlet 420 to different degrees. The area of ​​the push-pull plate blocking the air outlet 420 can be adjusted, so as to adjust the air volume of the return air, and then the air volume sent to the air inlet 310 changes accordingly. The specific push-pull plate can be used to infinitely adjust the air outlet 420 between fully opening and fully blocking. The sliding direction of the push-pull plate is specifically parallel to the air outlet 420. The locking of the push-pull plate can be achieved by a driving component, such as a telescopic cylinder driving the push plate to move and lock it at different positions of the sliding stroke, or it can be manually locked by structures such as buckles, locking pins, and threaded transmission connections.

[0049] In some embodiments, the regulating device includes a rotatable baffle plate disposed at the air outlet 420, and the baffle plate can be locked at different angles relative to the inlet of the fan 500. It is understandable that the rotation axis of the baffle plate can be located at the middle of the baffle plate or at one side edge of the baffle plate. The baffle plate can play a role in guiding the air out of the air outlet 420, and the angle of the baffle plate relative to the inlet of the fan 500 is adjusted to increase or decrease the air volume entering the air inlet 310, that is, the air volume of the return air entering the air supply duct 300, thereby achieving the temperature regulation of the second compartment 120. Specifically, the more the direction of the baffle plate is toward the inlet of the fan 500, the easier it is for the air to enter the air inlet 310, and the farther the direction of the baffle plate is from the inlet of the fan 500, the easier it is for the air to enter the first compartment 110. For example, the air volume sent into the air inlet 310 is increased by reducing the inlet angle of the baffle plate relative to the fan 500. Specifically, the extension direction and the rotation direction of the baffle plate can be set according to the orientation of the air outlet 420 and the air inlet 310 , as well as the corresponding relationship between the baffle plate angle and the air volume.

[0050] In some embodiments, the adjusting device further comprises a driving component, the output end of which is connected to the baffle to drive the baffle to rotate and lock it at different positions of the rotation stroke. That is, the baffle is automatically rotated by the driving component to facilitate automatic control. The baffle position can be locked by the driving component. The driving component includes but is not limited to a motor, and the output shaft of the motor can be directly connected to the rotating shaft of the baffle or indirectly connected to the rotating shaft through a reduction device to improve the control accuracy of the rotation angle.

[0051] In some embodiments, a fixing portion is provided on the baffle, and a plurality of locking portions cooperating with the fixing portion are provided on the wall of the compartment 100 or the return air duct 400, and the baffle can be rotated until the fixing portion cooperates with each locking portion to lock the baffle at different angles. One of the fixing portion and the locking portion can be a clamping head, and the other can be a clamping slot, or both can be magnetic parts that can be magnetically adsorbed. As set above, manual adjustment of the baffle angle can be achieved.

[0052] In some embodiments, the adjusting device is a shutter, and the air volume of the return air entering the air supply duct 300 is adjusted by adjusting the angles of multiple blades of the shutter.

[0053] In some embodiments, the fan 500 is arranged at the air inlet 310. It is understandable that the fan 500 is arranged at the air inlet 310, including both the fan 500 being arranged in the air inlet 310 and the fan 500 being arranged adjacent to the air inlet 310. As set above, the fan 500 is close to the air outlet 420 of the return air duct 400, that is, the fan 500 is arranged between the air outlet 420 and the air inlet 310, so that the wind of the air outlet 420 can be better introduced into the air inlet 310 of the air supply duct 300, which is conducive to the temperature regulation of the second compartment 120. In addition, the fan 500 is arranged at the air inlet 310, which is also convenient for the cable arrangement of the fan 500 and makes the air supply more uniform. Specifically, the fan 500 is a stepless speed regulating fan, which can adjust the wind speed according to the temperature of the second compartment 120, enrich the application environment of the unit, and make the temperature control system more efficient and energy-saving.

[0054] In some embodiments, the end of the air supply duct 300 is abutted against the air outlet side of the fan 500, and the air inlet 310 is arranged at the end face of the air supply duct 300 at one end of the first chamber 110, and is opposite to the outlet 510 of the fan 500. That is, the air supply duct 300 is arranged adjacent to the fan 500, and the air inlet 310 is arranged at the end face of the air supply duct 300, and the outlet 510 of the fan 500 is opposite to the air inlet 310, so that the air outlet of the fan 500 can better enter the air supply duct 300, and the air supply volume is increased under the same rotation speed of the fan 500, thereby improving the efficiency. Specifically, the fan 500 can be fixedly connected to the compartment 100 and arranged close to one end of the air supply duct 300. In some embodiments, the fan 500 can also be fixed to the air supply duct 300.

[0055] In some embodiments, the air outlet 420 is disposed on the bottom surface of the return air duct 400 at one end of the first chamber 110, and the inlet of the fan 500 is disposed downward. The air outlet 420 and the inlet of the fan 500 are both disposed downward, and the distance between the two is closer, so that the return air from the air outlet 420 is easier to enter the fan 500, and enter the air supply duct 300 driven by the fan 500, thereby increasing the air volume of the return air entering the air supply duct 300 under the same rotation speed of the fan 500, so as to better utilize the heat of the return air and reduce the impact of the return air on the temperature of the first chamber 110.

[0056] Specifically, the inlet of the fan 500 faces downward and the outlet 510 faces one end of the air supply duct 300. The corresponding air outlet 420 is arranged on the bottom surface of the return air duct 400 at one end of the first compartment 110, and the air inlet 310 is arranged on the end surface of the air supply duct 300 at one end of the first compartment 110. While achieving efficient utilization of return air, the overall structure is compact, the layout is reasonable, and the space occupancy is small.

[0057] In some embodiments, the air supply duct 300 and the air return duct 400 are arranged adjacent to each other. Then, the air duct only needs to be installed on one side of the compartment 100, which saves costs and frees up space. At the same time, the two are arranged adjacent to each other, which also facilitates the arrangement of the air inlet 310 and the air outlet 420 close to each other.

[0058] In some embodiments, the cold chain transport compartment includes a first air duct partition 600 and a second air duct partition 700, one side edge of the first air duct partition 600 is connected to the top wall 140 of the compartment 100, and the other side edge is connected to the side wall 150 of the compartment 100, one side edge of the second air duct partition 700 is connected to the first air duct partition 600, and the other side edge is connected to the top wall 140, the side wall 150, or one of the connection points between the top wall 140 and the side wall 150, and the second air duct partition 700 divides the space enclosed by the first air duct partition 600 and the compartment 100 into a supply air duct 300 and a return air duct 400. That is, the first air duct partition 600, the second air duct partition 700 and the body 100 cooperate to enclose the supply air duct 300 and the return air duct 400. Specifically, one side edge of the second air duct partition 700 is connected to the middle of the first air duct partition 600, then part of the first air duct partition 600, the second air duct partition 700 and part of the body 100 cooperate to enclose the supply air duct 300, and the remaining part of the first air duct partition 600, the second air duct partition 700 and another part of the body 100 cooperate to enclose the return air duct 400. During assembly, the first air duct partition 600 and the second air duct partition 700 can be fixed to the inner wall of the body 100, without modifying the structure of the body 100, which is easy to install and can easily modify the existing cold chain transport box, and the modification cost is low.

[0059] Specifically, the first air duct partition 600 is disposed at an edge of the compartment 100 to reduce the impact on the cargo loading in the core cargo storage area in the middle of the compartment 100 .

[0060] In some embodiments, for easy assembly, a mounting frame 900 is provided connected to the first air duct partition 600, and the fan 500 is arranged in the mounting frame 900. That is, the fan 500 is integrated into an air duct module through the mounting frame 900, the first air duct partition 600 and the second air duct partition 700, and the air duct module can be directly fixed in the compartment 100 during assembly, which is convenient for assembly.

[0061] Specifically, the first air duct partition 600 is a plate, specifically a flat plate. When one side edge of the first air duct partition 600 is connected to the top wall 140 of the compartment 100 and the other side edge is connected to the side wall 150 of the compartment 100, the first air duct partition 600 is inclined. While forming the air supply duct 300 and the return air duct 400, the height space occupancy is small, thereby reducing or even ignoring the impact on the cargo capacity. The second air duct partition 700 is used to separate the air supply duct 300 and the return air duct 400. According to the inclination angle of the first air duct partition 600, the connection position with the first air duct partition 600 and the connection position with the compartment 100 can be set accordingly. Specifically, the second air duct partition 700 is also a plate, specifically a straight plate, and one side edge of the second air duct partition 700 is connected to the connection between the top wall 140 and the side wall 150, so that the cross-sections of the divided supply air duct 300 and the return air duct 400 are both triangular, and thus have better stability.

[0062] In some embodiments, the air inlet 310 is disposed close to the cold air outlet 210. When the refrigeration device 200 is started, low-temperature gas can be obtained from the cold air outlet 210 of the refrigeration device 200 as soon as possible, so that the temperature of the second compartment 120 is reduced as soon as possible. In addition, the air inlet 310 is close to the cold air outlet 210, and the length of the air supply duct 300 is extended as much as possible under the same length of the compartment 100, which is conducive to the increase of the gas temperature in the air supply duct 300, and further improves the outlet temperature of the air supply 320, so as to increase the temperature difference between the second compartment 120 and the first compartment 110, so that the temperature zone coverage is more comprehensive.

[0063] In some embodiments, a heating device 800 is provided in the air supply duct 300, and the heating device 800 is provided at the part of the air supply duct 300 located in the second compartment 120 or at the connection between the first compartment 110 and the second compartment 120. The heating device 800 can be specifically an electric heating device such as an electric heating wire. By providing the heating device 800, the cold air in the air supply duct 300 is heated, which is conducive to more accurate control of the temperature of the second compartment 120, and the air outlet temperature of the air supply port 320 is increased to increase the temperature difference between the second compartment 120 and the first compartment 110, so that the temperature zone coverage is more comprehensive. The heating device 800 is provided at the part of the air supply duct 300 located in the second compartment 120 or at the connection between the first compartment 110 and the second compartment 120, so as to achieve accurate adjustment of the temperature of the air supply port 320 while reducing or even avoiding the influence on the temperature of the first compartment 110.

[0064] Based on the cold chain transport compartment provided in the above embodiments, the present invention further provides a cold chain transport tool, which includes any one of the cold chain transport compartments in the above embodiments. Since the cold chain transport tool adopts the cold chain transport compartment in the above embodiments, please refer to the above embodiments for the beneficial effects of the cold chain transport tool.

[0065] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0066] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cold chain transport compartment, comprising a compartment (100), wherein the compartment (100) is provided with a first compartment (110) and a second compartment (120) which are isolated from each other, wherein the working temperature of the first compartment (110) is lower than the working temperature of the second compartment (120), and wherein: Also includes: A refrigeration device (200) is disposed in the compartment (100), and a cold air outlet (210) of the refrigeration device (200) is connected to the first compartment (110); an air supply duct (300) disposed in the compartment (100), wherein one end of the air supply duct (300) extends to the first compartment (110) and the other end extends to the second compartment (120); the air supply duct (300) is provided with an air inlet (310) in communication with the first compartment (110), and is provided with an air supply duct (320) in communication with the second compartment (120); a return air duct (400) disposed in the compartment (100), wherein one end of the return air duct (400) extends to the first compartment (110), and the other end extends to the second compartment (120); the return air duct (400) is provided with a return air port (410) in communication with the second compartment (120), and is provided with an air outlet (420) in communication with the first compartment (110), and the air outlet (420) is disposed close to the air inlet (310); The fan (500) is used to guide the gas in the first chamber (110) and at least part of the return air from the air outlet (420) into the air supply duct (300) and then into the second chamber (120).

2. The cold chain transport compartment according to claim 1, characterized in that: It also includes an adjusting device disposed at the air outlet (420), the adjusting device being used to adjust the amount of air sent from the air outlet (420) into the air inlet (310).

3. The cold chain transport compartment according to claim 2, characterized in that: The adjustment device comprises a push-pull plate slidably arranged on the air outlet (420), and the push-pull plate can be locked at different positions of a sliding stroke to cover the air outlet (420) to different degrees.

4. The cold chain transport compartment according to claim 2, characterized in that: The regulating device comprises a rotatable baffle plate arranged at the air outlet (420), and the baffle plate can be locked at different angles relative to the inlet of the fan (500).

5. The cold chain transport compartment according to any one of claims 1 to 4, characterized in that: The fan (500) is disposed at the air inlet (310); The end of the air supply duct (300) is in contact with the air outlet side of the fan (500), and the air inlet (310) is provided on the end surface of the air supply duct (300) located at one end of the first chamber (110) and opposite to the outlet of the fan (500); The air outlet (420) is arranged on the bottom surface of the return air duct (400) located at one end of the first compartment (110), and the inlet of the fan (500) is arranged downward.

6. The cold chain transport compartment according to claim 5, characterized in that: The air supply duct (300) is arranged adjacent to the air return duct (400).

7. The cold chain transport compartment according to claim 6, characterized in that: The invention comprises a first air duct partition (600) and a second air duct partition (700), wherein one side edge of the first air duct partition (600) is connected to the top wall (140) of the body (100), and the other side edge is connected to the side wall (150) of the body (100); one side edge of the second air duct partition (700) is connected to the first air duct partition (600), and the other side edge is connected to the top wall (140), the side wall (150), or one of the connection points between the top wall (140) and the side wall (150); the second air duct partition (700) divides the space enclosed by the first air duct partition (600) and the body (100) into the supply air duct (300) and the return air duct (400).

8. The cold chain transport compartment according to any one of claims 1 to 4, characterized in that: The air inlet (310) is arranged close to the cold air outlet (210).

9. The cold chain transport compartment according to any one of claims 1 to 4, characterized in that: A heating device (800) is provided in the air supply duct (300), and the heating device (800) is provided at the portion of the air supply duct (300) located in the second compartment (120) or at the connection between the first compartment (110) and the second compartment (120).

10. A cold chain transport tool, characterized in that: Comprising a cold chain transport compartment as described in any one of claims 1-9.

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