Carriage body temperature control system and cold chain transportation tool

Abstract

The utility model discloses a carriage body temperature control system and cold chain transportation tool, including: carriage body and evaporator, carriage body includes first compartment and second compartment, the evaporator is provided in the carriage body, the evaporator is used for regulating the temperature in the first compartment, the working temperature of first compartment is lower than that of second compartment, and the temperature of second compartment is lower than that of second compartment. The compartment temperature control system further comprises an air supply channel and a heating part, one end of the air supply channel extends to the first compartment so that a first ventilation opening formed in the air supply channel can communicate with the first compartment, and the other end of the air supply channel extends to the second compartment so that a second ventilation opening of the air supply channel can communicate with the second compartment. The heating part is arranged at the air supply channel and used for heating air flowing to the second ventilation opening so as to prevent the temperature of the air flowing out of the second ventilation opening from being too low, and therefore the problem that the local temperature of the second compartment is too low can be solved, goods contained in the second compartment are prevented from being damaged, and the service life of the goods is prolonged. And when the temperature in the second compartment reaches the required temperature value, the air supply channel stops supplying air, and the heating part stops heating.

Description

Technical Field

[0001] The utility model relates to the technical field of cold chain, and in particular to a compartment temperature control system 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] During transportation, there are generally many types of goods being transported, and the required temperature environments are not necessarily the same. Therefore, some existing cold chain transportation tools usually include multiple compartments, and each compartment needs to be equipped with an evaporator for corresponding temperature control, which increases the cost.

[0004] In addition, in the existing system, for cold chain transportation vehicles that have both a freezer and a refrigerator, there is also a method of only setting up one evaporator, and setting the evaporator in the freezer, and then establishing an air supply channel between the freezer and the refrigerator, so that the cold air in the freezer can be introduced into the refrigerator, so that the temperature of the refrigerator can be lowered.

[0005] After long-term practice, it is found that the above technical solution often leads to the problem of local low temperature in the refrigerator, especially near the air outlet of the air supply channel, which may cause damage to the items.

[0006] Therefore, how to improve the problem of local low temperature when the cold air in the lower temperature compartment is introduced into the higher temperature compartment is an urgent problem that technicians in this field need to solve. Utility Model Content

[0007] The purpose of the utility model is to provide a compartment temperature control system and a cold chain transportation tool, which can effectively improve the problem of local low temperature when cold air from a compartment with a lower temperature is introduced into a compartment with a higher temperature in the prior art.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A compartment temperature control system comprises: a compartment and an evaporator, wherein the compartment comprises a first compartment and a second compartment, the evaporator is arranged in the compartment, the evaporator is used to adjust the temperature in the first compartment, the working temperature of the first compartment is lower than the working temperature of the second compartment, and further comprises:

[0010] an air supply passage, one end of which extends to the first compartment so that a first vent disposed thereon is connected to the first compartment, and the other end of which extends to the second compartment so that a second vent is connected to the second compartment;

[0011] A heating unit is provided at the air supply passage, and is used for heating the wind flowing toward the second vent.

[0012] In some technical solutions, the heating part is an electric heating wire, and the electric heating wire is arranged in the air supply channel to heat the wind flowing through the electric heating wire.

[0013] In some technical solutions, the heating unit is arranged on the air supply channel in the second compartment, or at the junction of the first compartment and the second compartment.

[0014] In some technical solutions, the compartment temperature control system also includes:

[0015] a condenser, the condenser being located outside the first compartment, the condenser and the evaporator being located in the same mechanical refrigeration system;

[0016] A warm air delivery pipe is connected to the condenser, and a partial section of the warm air delivery pipe is located at the air supply channel, and is used for exchanging heat with the air in the air supply channel.

[0017] In some technical solutions, the compartment temperature control system also includes:

[0018] A fan is connected to the air supply channel, and the fan is used to transport the air in the first compartment to the second compartment.

[0019] In some technical solutions, a spoiler is provided in the air supply channel, the fan is located at one end of the air supply channel extending into the first compartment, and the spoiler is located between the fan and the heating part.

[0020] In some technical solutions, an air duct plate is provided in the compartment, one end of the air duct plate extends to the first compartment, and the other end extends to the second compartment, the upper edge of the air duct plate is connected to the top of the compartment, and the lower edge of the air duct plate is connected to the side wall of the compartment to enclose the air supply channel.

[0021] In some technical solutions, the heating part is an electric heating wire, which is distributed on the air duct plate in a serpentine shape and extends along the air supply direction of the air supply channel.

[0022] In some technical solutions, the compartment temperature control system also includes:

[0023] an air outlet temperature sensor, disposed in the air supply passage, for detecting the temperature of the air heated by the heating unit;

[0024] A controller is connected to the air outlet temperature sensor and the heating unit, and is used to control the heating unit to increase its heating temperature when the temperature value detected by the air outlet temperature sensor is lower than a preset temperature threshold; and to control the heating unit to reduce its heating temperature when the temperature value detected by the air outlet temperature sensor is higher than the preset temperature threshold.

[0025] A cold chain transport vehicle, comprising any of the compartment temperature control systems described above.

[0026] Compared with the prior art, the above technical solution has the following advantages:

[0027] The utility model provides a compartment temperature control system and a cold chain transport tool, which can transport the lower temperature air in the first compartment to the higher temperature second compartment through the air supply channel, so as to lower the temperature in the second compartment. During the air supply process, the air supply channel can heat the air flowing to the second compartment through the heating unit to avoid the air temperature flowing out of the air supply channel being too low, thereby avoiding damage to the goods in the second compartment. When the temperature in the second compartment reaches the required temperature value, the air supply channel stops supplying air and the heating unit stops heating. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] 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 in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0029] Figure 1 A schematic diagram of the three-dimensional structure of a compartment temperature control system provided by a specific implementation mode of the utility model;

[0030] Figure 2 A top view of a compartment temperature control system provided by a specific implementation mode of the utility model;

[0031] Figure 3 The present invention is a schematic structural diagram of an air supply channel and a return air heat exchange channel of a compartment temperature control system provided in a specific embodiment of the present invention.

[0032] The reference numerals are as follows:

[0033] 10 is a compartment, 11 is a first compartment, 12 is a second compartment, and 13 is a partition;

[0034] 20 is an evaporator;

[0035] 30 is an air supply channel, 31 is a first vent, 32 is a second vent, 33 is a spoiler, 34 is an air duct plate, 35 is an air duct partition, 36 is a return air heat exchange channel, 361 is a return air inlet, and 362 is a return air outlet;

[0036] 40 is a heating unit;

[0037] 50 is a fan;

[0038] 60 is a return air passage. DETAILED DESCRIPTION

[0039] 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.

[0040] Please refer to Figure 1 and Figure 2 A compartment temperature control system provided by an embodiment of the utility model includes: a compartment 10 and an evaporator 20, the compartment 10 includes a first compartment 11 and a second compartment 12, the evaporator 20 is arranged in the compartment 10, and the evaporator 20 is used to adjust the temperature in the first compartment 11, and the working temperature in the first compartment 11 is lower than the working temperature in the second compartment 12, and the compartment temperature control system also includes: an air supply channel 30 and a heating unit 40, wherein one end of the air supply channel 30 extends to the first compartment 11 so that a first vent 31 arranged thereon is connected to the first compartment 11, and the other end of the air supply channel 30 extends to the second compartment 12 so that a second vent 32 is connected to the second compartment 12. It should be noted that extending to the compartment, that is, reaching the compartment, may stop at the compartment boundary or may further extend in the compartment. At least one second vent 32 can be provided on the side of the air supply channel 30, and the plurality of second vents 32 are distributed along the length extension direction of the air supply channel 30. The hole type of the second vent 32 is preferably a long strip hole, and the opening direction of the second vent 32 is preferably toward the top of the second compartment 12 or toward the horizontal direction. The end of the air supply channel 30 extending into the second compartment 12 is preferably a closed end, so that the air transported by the air supply channel 30 only flows out from its side; the heating unit 40 is provided at the air supply channel 30, and the heating unit 40 is used for heating the wind flowing toward the second vent 32 to avoid the wind temperature flowing out of the second vent 32 being too low and damaging the goods placed in the second compartment 12. When the temperature in the second compartment 12 reaches the required temperature value, the air supply channel 30 stops supplying air and the heating unit 40 stops heating.

[0041] It should be noted that the heating part 40 can be an electric heating structure that directly heats the air transported by the air supply channel 30, such as an electric heating wire; it can also be a warm air channel that indirectly heats the air transported by the air supply channel 30, for example, a warm air channel in contact with the air supply channel 30 is provided, and the warm air in the warm air channel can come from the second compartment 12, and heat can be transferred to the airflow in the air supply channel 30 through the side walls of the warm air channel and the air supply channel 30 that are in contact with each other; or other structures that can heat the airflow in the air supply channel 30.

[0042] The evaporator 20 can be installed in the first compartment 11, or outside the first compartment 11 or the second compartment 12. When installed outside the first compartment 11 or the second compartment 12, the cold air outlet of the evaporator 20 should be connected to the first compartment 11. For cold chain transportation vehicles, the first compartment 11 is generally in front of the second compartment 12. In order to facilitate the installation of the evaporator 20 and other equipment in the mechanical refrigeration system where the evaporator 20 is located, the evaporator 20 is generally installed on the side of the first compartment 11 away from the second compartment 12. In order to allow the first compartment 11 to have enough space to store more items, the evaporator 20 is generally arranged outside the first compartment 11, such as attached to the outside of the compartment 10, and the vent is facing the first compartment 11, and the vent is connected to the first compartment 11 through a channel opened on the compartment 10.

[0043] In some embodiments, the heating part 40 is an electric heating wire, which can be introduced from one end of the air supply channel 30 or from the side wall of the air supply channel 30. The electric heating wire is arranged in the air supply channel 30 to heat the wind flowing through the electric heating wire. In addition, the wind flowing through the electric heating wire can be turbulent to increase the wind flow resistance, thereby slowing down the wind flow speed, so as to improve the heating effect of the electric heating wire on the wind. The electric heating wire arranged in the air supply channel 30 can be woven into a mesh, and the periphery of the electric heating wire of the mesh structure is fixed in the air supply channel 30. In addition, a plurality of electric heating wires connected in series or in parallel can be arranged along the air supply direction of the air supply channel 30 to increase the heating stroke of the air flow, thereby ensuring the heating effect. Secondly, the electric heating wire can be wound into a shape that matches the cross section of the air supply channel 30. For example, when the cross section of the air supply channel 30 is a triangle, the electric heating wire can be wound into a triangular cylindrical structure. The electric heating wire of this structure can be arranged in the air supply channel 30, and the wind can pass through the inside and / or outside of the channel wound by the electric heating wire. The electric heating wire can be pulled out from one end of the air supply channel 30 to facilitate maintenance of the electric heating wire.

[0044] In some embodiments, the position where the heating unit 40 is arranged on the air supply channel 30 is located in the second compartment 12, which can avoid the heating unit 40 from having a greater impact on the temperature in the first compartment 11, or the heating unit 40 is located at the junction of the first compartment 11 and the second compartment 12, for example, the compartment 10 is divided into the first compartment 11 and the second compartment 12 by the partition 13, the air supply channel 30 is penetrated on the partition 13, and the position where the heating unit 40 is arranged on the air supply channel 30 is located on the partition 13. Being arranged at this position, the influence of the heating unit 40 on the temperature in the first compartment 11 and the second compartment 12 can be reduced at the same time. It should be noted that the heating unit 40 is located at the junction of the first compartment 11 and the second compartment 12 means that the heating unit 40 is completely located at the junction, or part of the heating unit 40 is located in the first compartment 11 and part of it is located in the second compartment 12, preferably, the part located in the first compartment 11 is smaller than the part located in the second compartment 12.

[0045] In some embodiments, the compartment temperature control system also includes: a condenser and a warm air delivery pipe, wherein the condenser is located outside the first compartment 11, and the condenser and the evaporator 20 are located in the same refrigeration system; the warm air delivery pipe is connected to the condenser, and the warm air delivered by the warm air delivery pipe has a higher temperature, so the warm air delivery pipe can be used to exchange heat with the air in the air supply channel 30. Specifically, a partial section of the warm air delivery duct is located at the air supply channel 30, and this partial section is a heat exchange section. The heat exchange section can exchange heat with the air in the air supply channel 30, wherein the heat exchange section of the warm air delivery duct can be arranged in the air supply channel 30, and can also be arranged on the side wall of the air supply channel 30. The heat exchange section preferably extends along the length direction of the air supply channel 30. For example, the heat exchange section can be wound into a spiral tube structure, and the cross-sectional structure of the spiral tube matches the cross-sectional structure of the air supply channel 30. For example, when the cross-section of the air supply channel 30 is triangular, the cross-sectional structure of the spiral tube is triangular. When the cross-sectional structure of the air supply channel 30 is rectangular, the cross-sectional structure of the spiral tube is rectangular, wherein the cross-sectional area of ​​the spiral tube is smaller than the cross-sectional area of ​​the air supply channel 30. When the wind passes through the inside and / or outside of the spiral structure, it can be heat exchanged with the warm air in the heat exchange section.

[0046] In some embodiments, the compartment temperature control system further includes a fan 50, which can be fixed on the inner wall of the first compartment 11, and the fan 50 is connected to the air supply channel 30. Specifically, the air inlet of the fan 50 can be set downward or in other directions, as long as the air in the first compartment 11 can be sucked in; the air outlet of the fan 50 can be set horizontally so as to be connected to one end of the air supply channel 30 extending into the first compartment 11. When the second compartment 12 needs to be cooled, the fan 50 is started, and the fan 50 can transport the air in the first compartment 11 to the second compartment 12. The speed of the fan 50 is adjustable to adjust the air volume.

[0047] In some embodiments, a spoiler 33 is provided in the air supply channel 30, for example, the spoiler 33 includes a plurality of spoiler fins distributed along the length extension direction of the air supply channel 30, and the spoiler fins can be fixed on the inner wall of the air supply channel 30 by riveting or welding, etc., the area of ​​the spoiler fins is smaller than the cross-sectional area of ​​the air supply channel 30, and the shape of the spoiler fins can be similar to the cross-sectional shape of the air supply channel 30, or can be other shapes, as long as it can play a spoiler role on the air flowing into the air supply channel 30. Among them, the fan 50 can be arranged at one end of the air supply channel 30 extending into the first compartment 11, and the spoiler 33 is located between the fan 50 and the heating unit 40, that is, the air entering the air supply channel 30 is first spoiled and then heated by the heating unit 40. The advantage of arranging the spoiler 33 in this way is that after the air is spoiled, the flow rate of the air can be reduced, thereby prolonging the time for the air to flow through the heating unit 40, thereby ensuring the heating effect of the heating unit 40.

[0048] In some embodiments, Figure 1 to Figure 3 As shown, an air duct plate 34 is provided in the compartment 10, one end of the air duct plate 34 extends to the first compartment 11, and the other end extends to the second compartment 12. The length of the air duct plate 34 in the second compartment 12 depends on the length of the second compartment 12. For example, the longer the length of the second compartment 12, the longer the length of the air duct plate 34 in the second compartment 12 is, so as to improve the air supply efficiency of the air supply channel 30 to the second compartment 12. In addition, the end of the air duct plate 34 extending into the second compartment 12 can be located in the middle of the second compartment 12 to reduce the space occupied by the air duct plate 34 in the second compartment 12, or it can be close to the rear end of the second compartment 12, and the rear end of the second compartment 12 refers to the end of the second compartment 12 away from the first compartment 11. For the box 10 of rectangular parallelepiped structure, the upper edge of the air duct plate 34 is connected to the top of the box 10, and the lower edge of the air duct plate 34 is connected to the side wall of the box 10 to enclose the air supply channel 30, that is, the air supply channel 30 utilizes the structure of the box 10 itself, which can reduce the use of materials, thereby reducing the manufacturing cost and maintenance cost. When the air duct plate 34 is a flat plate structure, the cross-sectional shape of the air supply channel 30 enclosed by the air duct plate 34 and the box 10 is a right triangle; when the air duct plate 34 is an L-shaped bending plate structure, the cross-sectional shape of the air supply channel 30 enclosed by the air duct plate 34 and the box 10 is a rectangle; when the air duct plate 34 is an arc-shaped bending structure, the cross-sectional shape of the air supply channel 30 enclosed by the air duct plate 34 and the box 10 is a fan-shaped. It should be noted that the air duct plate 34 of the above structure is only an example. In addition, other structures that can enclose the air supply channel 30 with the top and side walls of the box 10 can also be used.

[0049] In order to facilitate the connection of the air duct plate 34, an upper bent edge bent in the horizontal direction can be set on the upper edge of the air duct plate 34, and a lower bent edge bent in the vertical direction can be set on the lower edge of the air duct plate 34. The upper bent edge can be fixed to the top of the car body 10 by rivets, and the lower bent edge can be fixed to the side wall of the car body 10 by rivets.

[0050] In some embodiments, the heating unit 40 is disposed on the air duct plate 34. The heating unit 40 and the air duct plate 34 can be assembled as a component first. In addition, the fan 50 and the heat dissipation fins can be pre-fixed on the air duct plate 34 to form a module, so as to facilitate the installation of the pre-assembled module in the compartment 10. In addition, the heating unit 40 can be fixed on the air duct plate 34 in a detachable connection to facilitate maintenance of the heating unit 40.

[0051] In some embodiments, the heating unit 40 is an electric heating wire, which is distributed in a serpentine shape on the air duct plate 34 and extends along the air supply direction of the air supply channel 30. The electric heating wire is distributed in a serpentine shape, which can increase the length of the electric heating wire distributed on the air duct plate 34, thereby increasing the heating time of the electric heating wire on the air flow, thereby improving the heating effect. The electric heating wire can be fixed to the air duct plate 34 by means of clamping or riveting, and screws can also be set on the air duct plate 34. The screws can fix the electric heating wire to the target position on the air duct plate 34, and the screws can be removed from the outside of the air duct plate 34. The lead wire of the electric heating wire can extend from one end of the air supply channel 30, for example, it can extend out from one end of the air supply channel 30 located in the second compartment 12. The end of the air supply channel 30 located in the second compartment 12 is provided with an openable and closable end cover. When the electric heating wire needs to be removed for maintenance, the end cover can be opened, the screws can be loosened, and then the electric heating wire can be pulled outward. When the maintenance is completed, the electric heating wire can be extended from the end of the air supply channel 30 located in the second compartment 12 to the target position and then tightened with screws.

[0052] In some embodiments, the compartment temperature control system further includes: an outlet air temperature sensor and a controller. The outlet air temperature sensor is disposed in the air supply channel 30 and is used to detect the temperature of the air heated by the heating unit 40. The controller is connected to the outlet air temperature sensor and the heating unit 40. When the temperature value detected by the outlet air temperature sensor is lower than the preset temperature threshold, it indicates that the temperature provided by the heating unit 40 is insufficient. At this time, the controller controls the heating unit 40 to increase its heating temperature. When the temperature value detected by the outlet air temperature sensor is higher than the preset temperature threshold, it indicates that the temperature provided by the heating unit 40 is too high. At this time, the controller controls the heating unit 40 to reduce its heating temperature. A plurality of outlet air temperature sensors can be disposed along the length direction of the air supply channel 30 to improve the accuracy of outlet air temperature detection.

[0053] In addition, in order to accurately control the temperature in the second compartment 12, one or more compartment temperature sensors can be set at any position in the second compartment 12, and the compartment temperature sensors can detect the temperature in the second compartment 12, wherein one compartment temperature sensor can be set at the upper part, the lower part, the front part, the rear part, the left part and the right part of the second compartment 12 respectively. The controller is connected to each compartment temperature sensor and the heating unit 40. When the temperature value detected by the compartment temperature sensor is lower than the preset temperature threshold, the temperature in the second compartment 12 can be increased by controlling the heating unit 40 to increase its heating temperature and / or reduce the air supply volume of the air supply channel 30, until the second compartment 12 reaches the preset temperature threshold, and then the heating unit 40 and the fan 50 are turned off; when the temperature value detected by the compartment temperature sensor is higher than the preset temperature threshold, the temperature in the second compartment 12 can be reduced by controlling the heating unit 40 to reduce its heating temperature and / or increase the air supply volume of the air supply channel 30, until the preset temperature threshold is reached, and then the heating unit 40 and the fan 50 are turned off.

[0054] In order to facilitate the air circulation of the second compartment 12, a return air channel 60 may be provided in the compartment 10, and the return air channel 60 may be provided at the first edge of the top of the compartment 10, the return air port provided on the return air channel 60 is located in the second compartment 12, and the air outlet provided on the return air channel 60 is located in the first compartment 11; the air supply channel 30 is located at the second edge of the top of the compartment 10, and the first edge and the second edge are the left and right sides of the top of the compartment 10. When the fan 50 is working, the wind in the first compartment 11 can enter the second compartment 12 from the air supply channel 30, and the wind in the second compartment 12 can enter the first compartment 11 from the return air channel 60, thereby realizing air circulation, and then improving the uniformity of the temperature in the second compartment 12.

[0055] In addition, a return air heat exchange channel 36 may be provided near the air supply channel 30. Figure 3 As shown, an air duct partition 35 can be provided, one side edge of the air duct partition 35 is connected to the air duct plate 34, and the other side edge is connected to the edge of the top of the compartment 10, the channel above the air duct partition 35 is the air supply channel 30, and the channel below is the return air heat exchange channel 36, the return air heat exchange channel 36 and the air supply channel 30 can exchange heat through the air duct partition 35, wherein the return air inlet of the return air heat exchange channel 36 is preferably set downward, and the return air outlet 362 is located in the first compartment 11 and is also set downward, wherein the return air inlet 361 can be selected as a strip hole, and the return air outlet 362 can be selected as a rectangular hole.

[0056] An embodiment of the utility model also provides a cold chain transportation tool, including the compartment temperature control system provided by any of the above embodiments. The beneficial effects of the cold chain transportation tool can be referred to the above compartment temperature control system, which will not be repeated here.

[0057] It should be noted that the compartment 10 indicated in each embodiment of the present application is separated into at least two compartments, such as the first compartment 11 and the second compartment 12 mentioned above. Of course, in some embodiments, a third compartment or more compartments can be further separated. Generally speaking, the target temperature of the temperature control of the first compartment 11 and the second compartment 12 is not the same, and the former has a lower temperature. The first compartment 11 and the second compartment 12 can be expressed in at least the following ways: as one way, the first compartment 11 is a freezing compartment and the second compartment 12 is a refrigerating compartment; as another way, the first compartment 11 is a deep freezing compartment and the second compartment 12 is a refrigerating compartment or a fresh ice compartment; as another way, the temperature control temperature of the first compartment 11 is about minus 18 degrees Celsius, and the temperature control temperature of the second compartment 12 is 2 to 6 degrees Celsius, and it is required that none of them is lower than 0 degrees Celsius. The compartment 10 is separated into the first compartment 11 and the second compartment 12, or more compartments, which are generally separated in the front and rear directions of the compartment, and of course, can also be separated in the up and down directions or the left and right directions. It should be noted that in this context, forward refers to the direction of travel of the cold chain transport vehicle.

[0058] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0059] 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.

[0060] The above is a detailed introduction to a compartment temperature control system and a cold chain transportation tool provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A compartment temperature control system, comprising: A body (10) and an evaporator (20), wherein the body (10) comprises a first compartment (11) and a second compartment (12), the evaporator (20) is arranged on the body (10), and the evaporator (20) is used to adjust the temperature in the first compartment (11), the working temperature of the first compartment (11) is lower than the working temperature of the second compartment (12), and the invention is characterized in that it further comprises: an air supply channel (30), one end of the air supply channel (30) extending to the first compartment (11) so that a first vent (31) provided thereon is connected to the first compartment (11), and the other end of the air supply channel (30) extending to the second compartment (12) so that a second vent (32) thereof is connected to the second compartment (12); A heating part (40), the heating part (40) is arranged at the air supply channel (30), and the heating part (40) is used to heat the air flowing toward the second ventilation port (32).

2. The compartment temperature control system according to claim 1, characterized in that: The heating portion (40) is an electric heating wire, and the electric heating wire is arranged in the air supply channel (30) to heat the air flowing through the electric heating wire.

3. The compartment temperature control system according to claim 1, characterized in that: The heating portion (40) is arranged on the air supply passage (30) in the second compartment (12), or at the junction of the first compartment (11) and the second compartment (12).

4. The compartment temperature control system according to claim 1, characterized in that: The compartment temperature control system further includes: A condenser, the condenser being located outside the first compartment (11), the condenser and the evaporator (20) being located in the same mechanical refrigeration system; A warm air delivery pipe is connected to the condenser, and a partial section of the warm air delivery pipe is located at the air supply channel (30) and is used for exchanging heat with the air in the air supply channel (30).

5. The compartment temperature control system according to claim 1, characterized in that: The compartment temperature control system further includes: A fan (50), the fan (50) is connected to the air supply channel (30), and the fan (50) is used to transport the air in the first compartment (11) to the second compartment (12).

6. The compartment temperature control system according to claim 5, characterized in that: A spoiler (33) is provided in the air supply channel (30), the fan (50) is located at one end of the air supply channel (30) extending into the first compartment (11), and the spoiler (33) is located between the fan (50) and the heating portion (40).

7. The compartment temperature control system according to claim 1, characterized in that: An air duct plate (34) is provided in the body (10), one end of the air duct plate (34) extends to the first compartment (11), and the other end extends to the second compartment (12), the upper edge of the air duct plate (34) is connected to the top of the body (10), and the lower edge of the air duct plate (34) is connected to the side wall of the body (10) to enclose the air supply channel (30).

8. The compartment temperature control system according to claim 7, characterized in that: The heating portion (40) is an electric heating wire, which is distributed in a serpentine shape on the air duct plate (34) and extends along the air supply direction of the air supply channel (30).

9. The compartment temperature control system according to any one of claims 1 to 8, characterized in that: The cabin temperature control system also includes: an air outlet temperature sensor, disposed in the air supply passage (30) and used to detect the temperature of the air heated by the heating unit (40); A controller is connected to the air outlet temperature sensor and the heating unit (40), and is used to control the heating unit (40) to increase its heating temperature when the temperature value detected by the air outlet temperature sensor is lower than a preset temperature threshold; and to control the heating unit (40) to reduce its heating temperature when the temperature value detected by the air outlet temperature sensor is higher than the preset temperature threshold.

10. A cold chain transport tool, characterized in that: A compartment temperature control system comprising the compartment temperature control system as described in any one of claims 1 to 9.

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