Cold chain transport compartment and cold chain transport tool
By setting a plurality of second vents on the side wall of the air supply passage of the cold chain transport compartment, the cold air is mixed with the hot air in the compartment, and the problem of local temperature being too low due to the introduction of cold air in the compartment with a lower temperature chamber is solved, thereby achieving safer and more uniform temperature control.
Patent Information
- Application Number
- CN202420669533.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-03-29
AI Technical Summary
In existing cold chain transportation tools, when the compartment with higher temperatures is introduced into the compartment with lower temperatures, it is easy to cause local temperature to be too low and damage items.
A cold chain transportation compartment is designed. By providing a plurality of second vents on the side wall of the air supply passage, and the opening of the second vents faces the inner top or side wall of the compartment, it flows downwards with the hot air in the compartment, and forms a heat exchange area to prevent the cold air from blowing directly into the article.
It effectively avoids the problem of local temperature too low, ensures the storage safety of items, and improves the uniformity of temperature control.
Smart Images
Figure CN222769319U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of cold chain technology, and in particular 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] 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 a compartment that has both a freezer and a refrigerator, only one evaporator is provided, and the evaporator is provided in the freezer, and then an air supply passage is established 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 slow cooling speed and uneven temperature in the refrigerator compartment, especially near the air outlet of the air supply channel, which can easily cause damage to items.
[0006] Therefore, how to improve the problem of local temperature being too low and damaging articles when cold air is introduced into a compartment with a higher temperature, is an urgent problem that technicians in this field need to solve. Utility Model Content
[0007] The utility model aims to provide a cold chain transport compartment and a cold chain transport tool, which can improve the problem of local excessive low temperature and damage to articles when cold air from a lower temperature compartment is introduced into a higher temperature compartment.
[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0009] A cold chain transport compartment, comprising: a compartment body and a refrigeration device, wherein the compartment body comprises a first compartment and a second compartment, the refrigeration device is arranged in the compartment body and is used to adjust the temperature in the first compartment, and further comprising:
[0010] An air supply channel, one end of which extends to the first compartment so that a first vent arranged 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, the second vent is arranged on the side of the air supply channel, the second vent is used to supply air at the upper part of the second compartment and the air supply direction is horizontal or inclined upward to reduce the temperature in the second compartment.
[0011] In some technical solutions, a plurality of the second ventilation openings are provided on the side wall of the air supply channel, and an opening of at least one of the second ventilation openings faces the inner top of the second compartment.
[0012] In some technical solutions, a plurality of the second ventilation openings are distributed along the length extension direction of the air supply channel.
[0013] In some technical solutions, the second vent is provided with an adjustment component for adjusting the size of its opening.
[0014] 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.
[0015] In some technical solutions, a guide plate extending toward the outside of the air supply channel is provided at the second vent, and the guide plate is used to guide the air delivered from the second vent to the upper part of the second compartment.
[0016] In some technical solutions, the guide plate is formed by bending a plate formed when the second vent is opened.
[0017] In some technical solutions, the section of the air supply channel located in the second compartment is a telescopic air duct.
[0018] In some technical solutions, the air outlet section includes a fixed section and at least one movable section, the fixed section is fixed to the top plate and side wall of the second compartment, and the movable sections are nested with each other and can be extended and retracted relative to the fixed section along the length direction of the air supply channel.
[0019] A cold chain transport vehicle, comprising any of the cold chain transport compartments described above.
[0020] Compared with the prior art, the above technical solution has the following advantages:
[0021] The utility model provides a cold chain transport compartment. When used, before the first compartment supplies air to the second compartment through the air supply channel, the temperature in the first compartment is lower than the temperature in the second compartment. When the temperature in the second compartment needs to be lowered, the air supply channel can supply air to the upper part of the second compartment through the second vent in a lateral direction or an upwardly inclined air supply direction to lower the temperature in the second compartment. Since the cold air flows downward, the wind delivered to the upper part of the second compartment by the air supply channel will flow downward, and when the wind output by the second vent hits the inner top of the second compartment or the opposite side wall, it will be dispersed. At this time, a heat exchange area will be established with the hot air in the second compartment, so that the cold and hot air are mixed and then fall on the surface of the article. Therefore, the cold air delivered by the air supply channel can be avoided from blowing directly on the article, causing the local temperature of the article to be too low and damaged, so the storage safety of the articles in the second compartment can be guaranteed. In summary, the cold chain transport compartment provided by the utility model can improve the problem that the local temperature of the higher temperature compartment is too low and damages the articles when the cold air in the lower temperature compartment is introduced.
[0022] Since the above-mentioned cold chain transport compartment has the above-mentioned technical effects, the cold chain transport vehicle having the cold chain transport compartment should also have corresponding technical effects. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] 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.
[0024] Figure 1 A schematic diagram of the three-dimensional structure of a cold chain transport compartment provided by a specific embodiment of the utility model;
[0025] Figure 2 A schematic diagram of the structure of an air supply channel of a cold chain transport compartment provided by a specific embodiment of the utility model;
[0026] Figure 3 A cross-sectional schematic diagram of a cold chain transport compartment provided by a specific embodiment of the utility model;
[0027] Figure 4 for Figure 3 A magnified view of area A;
[0028] Figure 5 It is a schematic diagram of the local structure of the air duct plate;
[0029] Figure 6A schematic diagram of a telescopic air duct for a cold chain transport compartment provided in a specific embodiment of the utility model.
[0030] The reference numerals are as follows:
[0031] 10 is a compartment, 11 is a first compartment, 12 is a second compartment, and 13 is a partition;
[0032] 20 is a refrigeration device;
[0033] 30 is an air supply channel, 31 is a first vent, 32 is a second vent, 321 is a guide plate, 322 is an adjustment component, 33 is a spoiler, 34 is an air duct plate, 341 is a fixed section, 342 is a movable section, 35 is an air duct partition, 36 is a return air channel, 361 is a return air inlet, and 362 is a return air outlet;
[0034] 40 is a heating unit;
[0035] 50 is a fan. DETAILED DESCRIPTION
[0036] 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.
[0037] Please refer to Figure 1 to Figure 4 A cold chain transport compartment provided by an embodiment of the utility model includes: a compartment 10 and a refrigeration device 20, the compartment 10 includes a first compartment 11 and a second compartment 12, the working temperature of the first compartment 11 is lower than the working temperature of the second compartment 12, wherein the working temperature refers to the temperature in the working state, the refrigeration device 20 is arranged in the compartment 10, and the refrigeration device 20 can adjust the temperature in the first compartment 11, the cold chain transport compartment also includes an air supply channel 30, 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 a fan 50 is provided at one end of the air supply channel 30 extending into the first compartment 11, the fan 50 is fixed in the first compartment 11, and the air outlet of the fan 50 is connected to the first vent 31 of the air supply channel 30; the other end of the air supply channel 30 extends to the second compartment 12 so that the second vent 32 is connected to the second compartment 12, the second vent 32 is arranged on the side of the air supply channel 30, and the opening direction of the second vent 32 is in a horizontal direction or inclined upward. It should be noted that extending to the compartment, that is, reaching the compartment, may mean stopping at the compartment boundary, or further extending within the compartment.
[0038] When the cold chain transport compartment provided by the embodiment of the utility model is used, before the first compartment 11 supplies air to the second compartment 12 through the air supply channel 30, the temperature in the first compartment 11 is lower than the temperature in the second compartment 12. When it is necessary to lower the temperature in the second compartment 12, the air supply channel 30 can supply air to the upper part of the second compartment 12 in a lateral direction or an upwardly inclined air supply direction through the second vent 32 to lower the temperature in the second compartment 12. The direction of the wind can be referred to Figure 4 As shown by the arrow in , since the cold wind flows downward, the wind delivered to the upper part of the second compartment 12 by the air supply channel 30 will flow downward, and when the wind output by the second vent 32 collides with the inner top of the second compartment 12 or the opposite side wall, it will be dispersed, and at this time, a heat exchange area will be established with the hot wind in the second compartment 12, so that the cold and hot winds are mixed and then fall on the surface of the objects, so that the cold wind delivered by the air supply channel 30 can be prevented from directly blowing on the objects, causing the local temperature of the objects to be too low and damaged, so that the storage safety of the objects in the second compartment 12 can be guaranteed. When the temperature in the second compartment 12 reaches the required target temperature, the air supply channel 30 stops supplying air.
[0039] In summary, the cold chain transport compartment provided by the present invention can improve the problem of local temperature being too low and damaging items when cold air from a lower temperature compartment is introduced into a higher temperature compartment.
[0040] It should be noted that the above-mentioned lateral direction may be a generally horizontal direction, or may be slightly upward or slightly downward, and deviations are allowed.
[0041] The refrigeration device 20 is used to cool the first compartment 11, which is generally mechanical refrigeration. The specific refrigeration device 20 can be an evaporator, or other mechanical refrigeration equipment. The refrigeration device 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 refrigeration device 20 should be connected to the first compartment 11. For cold chain transportation tools, the first compartment 11 is generally in front of the second compartment 12. In order to facilitate the installation of the refrigeration device 20 and other equipment in the mechanical refrigeration system where the refrigeration device 20 is located, the refrigeration device 20 is generally installed on the side of the first compartment 11 away from the second compartment 12. In order to make the first compartment 11 have enough space to store more items, the refrigeration device 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 passage opened on the compartment 10 is connected with the first compartment 11.
[0042] In some embodiments, Figure 2As shown, the side wall of the air supply channel 30 is provided with a plurality of second vents 32, and the plurality of second vents 32 can be distributed along the length extension direction of the air supply channel 30, and the plurality of second vents 32 can also be distributed on the side wall of the air supply channel 30 in a rectangular array, wherein the opening of at least one second vent 32 faces the inner top of the second compartment 12, and specifically, the angles between the plurality of second vents 32 facing the inner top of the second compartment 12 and the horizontal plane can be the same or different. The same advantage is that it is convenient for processing the second vents 32, and the different advantage is that the wind output from the air supply channel 30 can be more dispersed. Specifically, when the angles of the second vents 32 are different, the extension lines of the second vents 32 and the intersections with the inner top of the second compartment 12 are different, so the position where the output wind collides will also be different, which is beneficial to disperse the wind into the second compartment 12.
[0043] It should be noted that the hole type of the second vent 32 can be a strip hole, the length direction of the strip hole extends along the length direction of the air supply channel 30, and the spacing between two adjacent strip holes is preferably less than the length of the strip hole, and of course it can also be equal to or greater than the length of the strip hole. The strip hole is conducive to increasing the amount of wind blown out in the horizontal or oblique direction, and is conducive to maximally conveying the wind output from the air supply channel 30 to the upper part of the second compartment 12. In addition, the hole type of the second vent 32 can also be a grille hole or other structural forms.
[0044] In some embodiments, Figure 5 As shown, the second vent 32 is provided with an adjusting component 322 for adjusting the size of its opening. The adjusting component 322 may be a flap that rotates relative to the air supply channel 30. The flap is rotatably connected to the second vent 32 via a rotating shaft, and the flap is connected to the driving component via a transmission component. The driving component may be a motor, and the transmission component may be a connecting rod mechanism. The motor may drive the flap to rotate via the connecting rod mechanism, thereby adjusting the size of the opening of the second vent 32, and further realizing the air volume adjustment of the air supply channel 30.
[0045] In some embodiments, 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, 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 body 10 of the rectangular structure, the upper edge of the air duct plate 34 is connected to the top of the box body 10, and the lower edge of the air duct plate 34 is connected to the side wall of the box body 10 to form an air supply channel 30. That is, the air supply channel 30 utilizes the structure of the box body 10 itself, which can reduce the use of materials, thereby reducing the manufacturing cost and maintenance cost. The end surface of the air supply channel 30 located in the second compartment 12 needs to be a closed end to prevent the wind output from the second vent 32 from being diverted. Therefore, after the air duct plate 34 surrounds the air supply channel 30, the end surface of the air supply channel 30 located in the second compartment 12 needs to be closed. Specifically, an end plate can be set on the air duct plate 34 at the end of the second compartment 12, and the end plate forms a closed structure with the air duct plate 34 and the top and side walls of the compartment 10, wherein the end plate can be bent by the rear end of the air duct plate 34, and the shape of the end plate depends on the cross-section of the air supply channel 30. For example, when the cross-section of the air supply channel 30 is triangular, a corresponding triangular end plate can be cut out at the rear end of the air duct plate 34, and after the air duct plate 34 is installed in the compartment 10, the end plate can block one end of the air supply channel 30 located in the second compartment 12. When the air duct plate 34 is a flat plate structure, the cross-sectional shape of the air supply channel 30 formed by the air duct plate 34 and the body 10 is a right triangle, and the angle between the second vent 32 and the horizontal plane is smaller than the angle between the air duct plate 34 and the horizontal plane, and is greater than or equal to 0 degrees; when the air duct plate 34 is an L-shaped bending plate structure, the cross-sectional shape of the air supply channel 30 formed by the air duct plate 34 and the body 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 formed by the air duct plate 34 and the body 10 is a fan-shaped. The cross-sectional shape of the air supply channel 30 refers to the cross-sectional shape perpendicular to the length extension direction of the air supply channel 30. It should be noted that the air duct plate 34 of the above structure is only an example. In addition, other structures that can form an air supply channel 30 with the top and side walls of the body 10 can also be used.
[0046] 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. In addition to the rivet connection, other fasteners can also be used for fixing.
[0047] In a specific usage scenario, when the temperature in the first compartment 11 is much lower than the temperature in the second compartment 12, if the cold air in the first compartment 11 is directly delivered to the second compartment 12, the local temperature in the second compartment 12 will be low, thereby damaging the items. In order to solve this problem, a heating unit 40 can be provided at the air supply channel 30 to heat the air in the air supply channel 30.
[0048] The heating part 40 may be an electric heating wire, which may be distributed along the length extension direction of the air supply channel 30. When the wind flows through the electric heating wire, it may be heated. In order to increase the flow time of the wind in the air supply channel 30, a spoiler 33 may be 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. The fan 50 may be provided 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 part 40, that is, the air entering the air supply channel 30 is first turbulent and then heated by the heating part 40. The advantage of arranging the spoiler 33 in this way is that after the air is turbulent, the flow velocity of the air can be reduced, thereby increasing the time for the air to flow through the heating part 40, thereby ensuring the heating effect of the heating part 40.
[0049] In addition, the wind in the second compartment 12 can also be used to heat the wind in the air supply channel 30. For example, a return air channel 36 can be set near the air supply channel 30. Specifically, an air duct partition 35 can be set, and 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 channel 36. The return air channel 36 and the air supply channel 30 can exchange heat through the air duct partition 35, wherein the return air inlet 361 of the return air channel 36 is located in the second compartment 12 and is preferably set downward, and the return air outlet 362 of the return air channel 36 is located in the first compartment 11 and is preferably set downward, and the return air of the return air channel 36 can be sucked into the air supply channel 30 by the fan 50.
[0050] In some embodiments, a guide plate 321 extending toward the outside of the air supply channel 30 is provided at the second vent 32, and the guide plate 321 can guide the air sent out of the second vent 32 to the upper part of the second compartment 12, and the guide plate 321 can prevent the air output from the air supply channel 30 from blowing toward the lower part of the second compartment 12. The guide plate 321 can be integrally formed with the air duct plate 34, or the guide plate 321 can be fixed to the second vent 32 by riveting or welding. Specifically, the guide plate 321 is formed by bending a plate formed when the second vent 32 is opened. For example, when processing the long strip-shaped second vent 32, three edges can be cut out, and the other edge is left on the air duct plate 34, and then the plate is bent outward, and the extension direction of the plate is horizontal or upwardly inclined.
[0051] In some embodiments, Figure 6 As shown, the air outlet section of the air supply channel 30 located in the second compartment 12 is a retractable air channel, which can be adapted to the second compartments 12 of different lengths, thereby improving the flexibility of installing the air supply channel 30 in the compartment 10. In addition, when the second compartment 12 does not need to be cooled, the air outlet section can be retracted to improve the space utilization rate in the second compartment 12; when the second compartment 12 needs to be cooled, the air outlet section can be pulled out to increase the cooling speed and air volume.
[0052] In some embodiments, again referring to Figure 6 As shown, the air outlet section includes a fixed section 341 and at least one movable section 342. Figure 6 The dotted frame in the figure does not belong to the structure of the air outlet section, but is only used to identify and distinguish the fixed section 341 and the movable section 342. The fixed section 341 is fixed to the top plate and the side wall of the second compartment 12, and the movable section 342 is mutually sleeved and can be extended and retracted relative to the fixed section 341 along the length direction of the air supply channel 30, wherein the movable section 342 can be sleeved in the fixed section 341 or outside the fixed section 341. For example, for the air duct plate 34 constituting the air supply channel 30, the air duct plate 34 includes a front plate located in the first compartment 11, a middle plate located in the second compartment 12, and a rear plate slidably connected to the middle plate, that is, the middle plate is the fixed section 341, and the rear plate is the movable section 342. When the rear plate is pulled backward, the rear plate and the top plate and the side wall of the compartment 10 constitute the rear section structure of the air supply channel 30. The rear end of the middle plate and the front end of the rear plate are provided with a limiting structure to prevent the rear plate from falling off the middle plate. In addition, a limiting piece can be provided at the front end of the middle plate to prevent the rear plate from being pushed further inward. In order to facilitate pushing and pulling the movable section 342, a push-pull handle can be provided at the tail of a movable section 342 away from the fixed section 341.
[0053] An embodiment of the utility model further provides a cold chain transport tool, including the cold chain transport compartment provided by any one of the above embodiments. Regarding the beneficial effects of the cold chain transport tool, reference may be made to the above-mentioned cold chain transport compartment, which will not be repeated here.
[0054] 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 the forward direction in the above text refers to the travel direction of the cold chain transport vehicle.
[0055] 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.
[0056] 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.
[0057] The above is a detailed introduction to a cold chain transport compartment and a cold chain transport 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 cold chain transport compartment, comprising: A body (10) and a refrigeration device (20), wherein the body (10) comprises a first compartment (11) and a second compartment (12), and the refrigeration device (20) is arranged in the body (10) and is used to adjust the temperature in the first compartment (11), and is characterized in that it also comprises: An air supply channel (30), 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), the second vent (32) is arranged on the side of the air supply channel (30), the second vent (32) is used to supply air to the upper part of the second compartment (12) and the air supply direction is horizontal or upwardly inclined to reduce the temperature in the second compartment (12).
2. The cold chain transport compartment according to claim 1, characterized in that: The side wall of the air supply channel (30) is provided with a plurality of the second ventilation openings (32), and the opening of at least one of the second ventilation openings (32) faces the inner top of the second compartment (12).
3. The cold chain transport compartment according to claim 2, characterized in that: The plurality of second ventilation openings (32) are distributed along the length extension direction of the air supply channel (30).
4. The cold chain transport compartment according to claim 1, characterized in that: The second ventilation opening (32) is provided with an adjustment component (322) for adjusting the size of its opening.
5. The cold chain transport compartment 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).
6. The cold chain transport compartment according to claim 1, characterized in that: The second ventilation opening (32) is provided with a guide plate (321) extending toward the outside of the air supply channel (30), and the guide plate (321) is used to guide the air supplied from the second ventilation opening (32) to the upper part of the second compartment (12).
7. The cold chain transport compartment according to claim 6, characterized in that: The guide plate (321) is formed by bending a plate member formed when the second vent (32) is opened.
8. The cold chain transport compartment according to any one of claims 1 to 7, characterized in that: The air outlet section of the air supply channel (30) located in the second compartment (12) is a telescopic air duct.
9. The cold chain transport compartment according to claim 8, characterized in that: The air outlet section comprises a fixed section (341) and at least one movable section (342), wherein the fixed section (341) is fixed to the top plate and the side wall of the second compartment (12), and the movable sections (342) are mutually nested and can be extended and retracted relative to the fixed section (341) along the length direction of the air supply channel (30).
10. A cold chain transport tool, characterized in that: Comprising the cold chain transport compartment as described in any one of claims 1 to 9.