Cold chain transport compartment and cold chain transport vehicle

Abstract

The utility model discloses a cold chain transport compartment, which comprises a first compartment and a second compartment which are separated from each other, the working temperature of the first compartment is lower than that of the second compartment, and the cold chain transport compartment further comprises a surrounding piece, one end of the surrounding piece extends to the first compartment, and the other end of the surrounding piece extends to the second compartment to form a ventilation channel in a surrounding manner; the heat conduction partition piece extends along the ventilation channel to divide the ventilation channel into an air supply channel and an air return channel, the heat conduction partition piece can conduct heat between the air supply channel and the air return channel, and at least one of the air supply channel and the air return channel is provided with a turbulent flow structure; openings in the two ends of the air supply channel communicate with the first compartment and the second compartment correspondingly. And the fan can drive the gas in the first compartment to enter the second compartment through the air supply channel, and enables the gas in the second compartment to enter the first compartment through the air return channel. The problem that the temperature control effect of two compartments with different working temperatures is poor can be effectively solved. The utility model further discloses a cold chain transport vehicle comprising the cold chain transport compartment.

Description

Technical Field

[0001] The utility model relates to the technical field of cold chain, and more specifically, to a cold chain transportation compartment, and also to a cold chain transport vehicle including the above cold chain transportation compartment. Background Art

[0002] Cold chain transportation refers to the transportation in which the goods being transported are always maintained at a certain temperature during the transportation process. The cold chain transportation mode can be road transportation, waterway transportation, railway transportation, air transportation, or an integrated transportation composed of multiple transportation modes.

[0003] The cold chain transportation compartment is the main structure for storing goods during cold chain transportation. To meet the transportation of goods that need to be stored at different temperatures, the cold chain transportation compartment can include two compartments with different temperatures. A common way to adjust the temperatures of the two compartments is to respectively arrange evaporators in the two compartments, and the two evaporators respectively adjust the temperatures of the corresponding compartments, which generally causes the temperatures of the two compartments to be different, one being a higher compartment with a higher temperature and the other being a lower compartment with a lower temperature. For example, the former is a refrigerating compartment and the latter is a freezing compartment; or the former is a shallow freezing compartment and the latter is a deep freezing compartment.

[0004] In the process of implementing the present utility model, the inventor found that there are at least the following problems in the prior art: the problem of poor temperature control effect for two compartments with different working temperatures. Summary of the Utility Model

[0005] In view of this, the first object of the present utility model is to provide a cold chain transportation compartment, which can improve the problem of poor temperature control effect for two compartments with different working temperatures existing in the prior art. The second object of the present utility model is to provide a cold chain transport vehicle including the above cold chain transportation compartment.

[0006] To achieve the above first object, the present utility model provides the following technical solutions:

[0007] A cold chain transportation compartment includes a compartment body, and the compartment cavity of the compartment body includes a first compartment and a second compartment which are separated from each other. The working temperature of the first compartment is lower than that of the second compartment, and further includes:

[0008] A surrounding member is arranged in the compartment cavity, and one end of the surrounding member extends into the first compartment and the other end extends into the second compartment to surround and form a ventilation channel;

[0009] A heat-conducting partition is disposed in the ventilation channel and extends along the ventilation channel to divide the ventilation channel into a supply air channel and a return air channel. The heat-conducting partition is capable of conducting heat between the supply air channel and the return air channel. At least one of the supply air channel and the return air channel is provided with a flow disturbance structure. The two ends of the supply air channel are respectively opened and communicated with a first chamber and a second chamber, and the two ends of the return air channel are respectively opened and communicated with the first chamber and the second chamber.

[0010] A fan is disposed in the chamber. When it is turned on, it can drive the gas in the first chamber to enter the second chamber through the supply air channel, and make the gas in the second chamber enter the first chamber through the return air channel.

[0011] When using the above cold chain transportation chamber, when the refrigeration device or other reasons cause the working temperature of the first chamber to be lower than that of the second chamber, the gas in the first chamber can be introduced into the second chamber at this time to cool and control the temperature of the second chamber. During operation, the fan is turned on, and the gas in the first chamber enters the second chamber through the supply air channel, while the gas in the second chamber enters the first chamber through the return air channel. Since the supply air channel and the return air channel are separated by a heat-conducting partition, heat exchange can occur between them. Since the return air channel introduces gas from the second chamber, after heat exchange between the supply air channel and the return air channel, the outlet air temperature of the supply air channel can be made closer to that of the second chamber. Similarly, the temperature of the return air channel can be made closer to that of the first chamber. By setting the flow disturbance structure, the wind speed in the supply air channel or the return air channel can be reduced, thereby effectively ensuring sufficient heat exchange between the supply air channel and the return air channel to improve the heat exchange effect. Especially when the supply air channel and the return air channel cannot be set to a long length, through the above-mentioned flow disturbance structure and the heat-conducting partition close to each other between the two air ducts, it can effectively ensure that the outlet temperature of the supply air channel is closer to that of the first chamber, and the outlet temperature of the return air channel is closer to that of the second chamber. At the same time, the structure is simple and the setting is convenient. In summary, the cold chain transportation chamber can effectively improve the problem of poor temperature control effect of two chambers with different working temperatures.

[0012] In some technical solutions, an electric heating device is further included. The electric heating device is used to heat the air body in the supply air channel. And in the air supply direction, the electric heating device is located in front of the flow disturbance structure in the supply air channel.

[0013] In some technical solutions, the position of the electric heating device on the supply air channel is located at the second chamber or at the junction of the first chamber and the second chamber. The electric heating device is disposed in the supply air channel, suspended or attached to the inner wall of the supply air channel and protruding from the supply air channel.

[0014] In some technical solutions, the enclosure is connected to the box body and encloses the ventilation channel with the inner wall of the box body, and the part of the box body corresponding to the air supply channel faces the gas in the air supply channel and can contact and exchange heat.

[0015] In some technical solutions, the enclosure is arranged at the inner corner of the box body. One side edge of the enclosure is connected to one side wall surface of the inner corner, and the other side edge is connected to the other side wall surface of the inner corner; the first side part of the two opposite side parts of the heat-conducting partition is connected to the inner corner, and the second side part is connected to the enclosure; the side of the second side part away from the air supply channel abuts against the enclosure.

[0016] In some technical solutions, the enclosure is a flat plate. The upper side edge of the enclosure is fixedly connected to the top wall surface of the box body, and the lower side edge is fixedly connected to the side wall surface of the box body.

[0017] In some technical solutions, the upper side edge of the enclosure forms a first folded edge part bent outward from the ventilation channel to abut against and be relatively fixedly connected to the top wall surface; the lower side edge of the enclosure is bent downward to form a second folded edge part to abut against and be fixedly connected to the side wall surface; the first folded edge part and the second folded edge part are perpendicular to each other; the upper side edge of the heat-conducting partition forms a third folded edge part and is bent downward to be coplanar with the second folded edge part and installed on the same side wall surface; the lower side edge of the heat-conducting partition forms a fourth folded edge part to abut against the upper surface of the enclosure and a gasket is added between them; the fourth folded edge part is inclined downward.

[0018] In some technical solutions, the upper side channel of the heat-conducting partition is the air supply channel and the lower side channel is the return air channel; the part of the enclosure corresponding to the air supply channel is provided with an air supply port communicating with the second compartment; the part of the enclosure corresponding to the return air channel is provided with a return air port communicating with the second compartment.

[0019] In some technical solutions, the air supply port is located on the side of the enclosure close to the top wall surface of the box body; the return air port is located on the side of the enclosure close to the adjacent side wall surface of the box body; the air supply direction of the air supply port is the horizontal direction or inclined upward; the return air port is arranged downward.

[0020] In some technical solutions, a guide plate extending outward from the air supply port is provided at the air supply port, and the guide plate is used to guide the air sent out from the air supply port to the upper part of the second compartment; the guide plate is bent from the plate formed when the air supply port is opened.

[0021] In some technical solutions, the fan is arranged at one end of the enclosure, and both the enclosure and the heat-conducting partition are installed on the side wall of the fan.

[0022] In some technical schemes, the fan is arranged at one end of the enclosure located in the first compartment; the air outlet side of the fan faces the end face of the enclosure and is connected to the air inlet formed by the air supply channel on the end face of the enclosure; the air inlet side of the fan faces downward, and the enclosure is provided with an air outlet of the return air channel in the part of the second compartment.

[0023] In order to achieve the above second purpose, the utility model also provides a cold chain transport vehicle, which includes any of the above cold chain transport compartments, including a frame, and the cold chain transport compartment is installed on the frame. Since the above cold chain transport compartment has the above technical effects, the cold chain transport vehicle having the cold chain transport compartment should also have corresponding technical effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] 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.

[0025] Figure 1 A schematic diagram of the structure of the cold chain transport compartment air duct device provided by an embodiment of the utility model;

[0026] Figure 2 A schematic diagram of the structure of a cold chain transport compartment provided by an embodiment of the utility model;

[0027] Figure 3 for Figure 2 An enlarged structural diagram of the cold chain transport compartment A in FIG.

[0028] Figure 4 A perspective structural schematic diagram of a cold chain transport compartment provided in an embodiment of the utility model.

[0029] The following are marked in the accompanying drawings:

[0030] Box body 1, enclosure 2, heat-conducting spacer 3, ventilation channel 4, spoiler structure 5, fan 6, electric heating device 7, partition 8, refrigeration equipment 9;

[0031] A first compartment 1-1, a second compartment 1-2, a top wall 1-3, a side wall 1-4, an outer skin 1-5, an insulation layer 1-6, and an inner skin 1-7;

[0032] A first folding portion 2-1, a second folding portion 2-2, and a guide plate 2-3;

[0033] A third folding portion 3-1 and a fourth folding portion 3-2;

[0034] Air supply duct 4-1, return air duct 4-2, air supply outlet 4-3, return air inlet 4-4, air inlet 4-5, and air outlet 4-6. Specific embodiments

[0035] An embodiment of the present utility model discloses a cold chain transportation compartment to improve the problem of poor temperature control effect in compartments with two different working temperatures in the prior art.

[0036] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0037] Please refer to Figures 1-4 , Figure 1 which is a schematic structural diagram of the air duct device of the cold chain transportation compartment provided by the embodiment of the present utility model; Figure 2 which is a schematic structural diagram of the cold chain transportation compartment provided by the embodiment of the present utility model; Figure 3 is Figure 2 an enlarged structural diagram of part A of the cold chain transportation compartment in Figure 4 which is a perspective structural diagram of the cold chain transportation compartment provided by the embodiment of the present utility model.

[0038] In some embodiments, this embodiment provides a cold chain transportation compartment. Specifically, the cold chain transportation compartment mainly includes a compartment body 1, a surrounding member 2, a heat-conducting partition member 3, and a fan 6.

[0039] The compartment cavity of the compartment body 1 has a first compartment 1-1 and a second compartment 1-2 which are separated from each other. Of course, in some embodiments, a third compartment or more compartments can be further separated. Generally speaking, the working temperatures of the first compartment 1-1 and the second compartment 1-2 for temperature control are not the same. At least in one working state: the working temperature of the first compartment 1-1 needs to be lower than that of the second compartment 1-2. The first compartment 1-1 and the second compartment 1-2 can be at least manifested in the following several ways: For example, in one way, the first compartment 1-1 is a freezer compartment and the second compartment 1-2 is a refrigerating compartment; in another way, the first compartment 1-1 is a deep-freeze compartment and the second compartment 1-2 is a refrigerating compartment or a chilled-food compartment; in another way, the temperature controlled in the first compartment 1-1 is about minus 18 degrees Celsius, and the temperature controlled in the second compartment 1-2 is 2 to 6 degrees Celsius, and it is required that no place can be lower than 0 degrees Celsius. The compartment body 1 is separated into the first compartment 1-1 and the second compartment 1-2, or more compartments are separated. Generally, it is separated in the front-rear direction of the compartment body 1 by a partition 8. Of course, it can also be separated in the up-down direction or the left-right direction. It should be noted that in the context, the forward direction is the driving direction of the cold-chain transportation vehicle.

[0040] The enclosure 2 is arranged in the compartment cavity, and one end of the enclosure 2 extends to the first compartment 1-1 and the other end extends to the second compartment 1-2 to form a ventilation channel 4 by surrounding. It should be noted that the extension here means reaching. Of course, after reaching the boundary of the compartment, it may or may not further extend into the compartment. Specifically, the enclosure 2 can cooperate with the compartment body 1 to enclose the ventilation channel 4. Further, a supply air channel 4-1 and a return air channel 4-2 can be separated in the ventilation channel 4 by a heat-conducting partition 3. It should be noted that the enclosure 2 can be arranged at the inner corners of the compartment body 1 to enclose the ventilation channel 4 with the wall surfaces on both sides of the inner corners of the compartment body 1. The enclosure 2 can also be arranged at the wall surface on one side of the compartment body 1 to enclose the ventilation channel 4 only with the inner wall surface on one side of the compartment body 1, such as the inner wall surface on the top side or the side wall 1-4 on the left or right side. It can also be that the enclosure 2 alone encloses the ventilation channel 4, such as the enclosure 2 being a pipe fitting.

[0041] The heat-conducting partition 3 is also arranged in the compartment cavity, and further arranged in the ventilation channel 4 and extends along the ventilation channel 4 to separate the ventilation channel 4 into a supply air channel 4-1 and a return air channel 4-2. The heat-conducting partition 3 can conduct heat between the ventilation channel 4 and the return air channel 4-2. At this time, the heat-conducting partition 3 not only serves as a heat-conducting structure, but also serves as a channel isolation structure. Setting the supply air channel 4-1 and the return air channel 4-2 close to each other can make the structure more compact, and directly using the partition between the two as a heat-conducting structure. At the same time, the heat-conducting partition 3 has a good extension in the extending direction of the supply air channel 4-1 and has more heat exchange surfaces, so as to better ensure the heating requirement. At the same time, the structure is simple and the manufacturing method is simple.

[0042] The two ends of the air supply channel 4-1 are respectively open and communicate with the first chamber 1-1 and the second chamber 1-2 to guide the gas in the first chamber 1-1 to the second chamber 1-2, and the two ends of the air return channel 4-2 are respectively open and communicate with the first chamber 1-1 and the second chamber 1-2 to guide the gas in the second chamber 1-2 to the first chamber 1-1.

[0043] The air supply channel 4-1 and / or the air return channel 4-2 is provided with a flow disturbing structure 5, that is, at least one of the air supply channel 4-1 and the air return channel 4-2 is provided with a flow disturbing structure 5. For example, the part of the air supply channel 4-1 located in the first chamber 1-1 is provided with a flow disturbing structure 5 to increase the air flow resistance, thereby slowing down the air flow speed, so that the heat exchange effect between the ventilation channel 4 and the air supply channel 4-1 can be improved. The flow disturbing structure 5 can be integrated on the heat conducting partition 3 or can be integrated on the surrounding member 2. Of course, the flow disturbing structure 5 can be, for example, flow disturbing fins. For example, a plurality of flow disturbing fins are distributed along the length extension direction of the air supply channel 4-1. The flow disturbing fins can be fixed on the inner wall of the air supply channel 4-1 by riveting or welding. The area of the flow disturbing fins is smaller than the cross-sectional area of the air supply channel 4-1. The shape of the flow disturbing fins can be similar to the cross-sectional shape of the air supply channel 4-1 or can be other shapes, as long as it can play a role in disturbing the air flowing into the air supply channel 4-1. After disturbing the air, the air flow speed can be reduced, so that the time for the air to flow through the heating part is increased, thus ensuring the heating effect of the heating part.

[0044] The fan 6 is arranged in the compartment cavity and can drive the gas in the first compartment 1-1 to enter the second compartment 1-2 through the air supply channel 4-1 when it is turned on, and make the gas in the second compartment 1-2 enter the first compartment 1-1 through the air return channel 4-2. It should be noted that there are at least the following three ways for the fan 6 to achieve the above functions: The first way, as shown in the attached drawing, the gas in the first compartment 1-1 enters the second compartment 1-2 through the air supply channel 4-1, which can be achieved by the fan 6 arranged at the air supply channel 4-1, such as an exhaust fan 6, a blower 6, etc. In the relatively sealed state of the first compartment 1-1 and the second compartment 1-2, the above fan 6 can cause the air pressure in the second compartment 1-2 to be greater than the air pressure in the first compartment 1-1, and then cause the gas in the second compartment 1-2 to enter the first compartment 1-1 through the air return channel 4-2; The second way, the gas in the second compartment 1-2 enters the first compartment 1-1 through the air return channel 4-2, which can be achieved by the fan 6 arranged at the air return channel 4-2, such as an exhaust fan 6, a blower 6, etc. In the relatively sealed state of the first compartment 1-1 and the second compartment 1-2, the above fan 6 can cause the air pressure in the first compartment 1-1 to be greater than the air pressure in the second compartment 1-2, and then cause the gas in the first compartment 1-1 to enter the second compartment 1-2 through the air supply channel 4-1. Generally speaking, it is difficult to reduce the wind speed of the fan 6, and by setting the flow disturbance structure 5, the gas flow rate in the air supply channel 4-1 can be well reduced.

[0045] In some embodiments, when using the above cold chain transportation compartment, if the refrigeration device or other reasons cause the operating temperature of the first compartment 1-1 to be lower than that of the second compartment 1-2, the gas in the first compartment 1-1 can be introduced into the second compartment 1-2 at this time to cool and control the temperature of the second compartment 1-2. During operation, the fan 6 is turned on, and the gas in the first compartment 1-1 enters the second compartment 1-2 through the air supply channel 4-1, while the gas in the second compartment 1-2 enters the first compartment 1-1 through the air return channel 4-2. Since the air supply channel 4-1 and the air return channel 4-2 are separated by a heat-conducting partition to enable heat exchange between them, and since the air return channel 4-2 introduces gas from the second compartment 1-2, after the air supply channel 4-1 exchanges heat with the air return channel 4-2, the outlet temperature of the air supply channel 4-1 can be made closer to that of the second compartment 1-2. Similarly, the outlet temperature of the air return channel 4-2 can be made closer to that of the first compartment 1-1. By providing the flow disturbance structure 5, the wind speed in the air supply channel 4-1 or the air return channel 4-2 can be reduced, thereby effectively ensuring sufficient heat exchange between the air supply channel 4-1 and the air return channel 4-2 to improve the heat exchange effect. Especially when the air supply channel 4-1 and the air return channel 4-2 cannot be set to a long length, through the above flow disturbance structure 5 and the heat-conducting partition 3 close to each other between the two air ducts, it can effectively ensure that the outlet temperature of the air supply channel 4-1 is closer to that of the first compartment 1-1, and the outlet temperature of the air return channel 4-2 is closer to that of the second compartment 1-2. At the same time, the structure is simple and easy to set. In summary, the cold chain transportation compartment can effectively solve the problem of poor temperature control effect of two compartments with different operating temperatures.

[0046] In some embodiments, considering that when the temperature difference between the first compartment 1-1 and the second compartment 1-2 is very large, heating the air supply only by the air return may not have a good heating effect, resulting in the outlet temperature of the air supply channel 4-1 still being too low compared to the temperature of the second compartment 1-2. Based on this, it is preferably further provided with an active heating structure here to be able to heat the air supply when it is turned on. Specifically, for example, an electric heating device 7 can be provided, and the electric heating device 7 is used to heat the air body in the air supply channel 4-1. The electric heating device 7 can be provided inside the air supply channel 4-1 or outside the ventilation channel 4, as long as it can heat the air supply channel 4-1. Among them, the electric heating device 7 can specifically adopt an electric heating wire. In the context, the electric heating device 7 refers to the part that can generate heat by electric heating, and there is no requirement for the setting method of the non-heating part.

[0047] Specifically, for example, the electric heating device 7 can be introduced from one end of the air supply channel 4-1 or from the side wall of the air supply channel 4-1. The electric heating device 7 is arranged in the air supply channel 4-1, and the electric heating device 7 can be suspended or attached to the inner wall of the air supply channel 4-1 and protrude from the air supply channel 4-1, so as to turbulently flow the air flowing through the electric heating device 7, increase the air flow resistance, and thus slow down the air flow speed. Therefore, the heating effect of the electric heating device 7 on the air can be improved. Specifically, the electric heating device 7 arranged in the air supply channel 4-1 can be woven into a net shape, and the periphery of the net-shaped electric heating device 7 is fixed in the air supply channel 4-1. In addition, a plurality of serially or parallelly connected electric heating devices 7 can be arranged along the air supply direction of the air supply channel 4-1 to increase the heating stroke of the air flow and further ensure the heating effect.

[0048] Secondly, the electric heating device 7 can be wound into a shape matching the cross-section of the air supply channel 4-1. For example, when the cross-section of the air supply channel 4-1 is triangular, the electric heating device 7 can be wound into a triangular prism-shaped structure. The electric heating device 7 of this structure can be horizontally placed in the air supply channel 4-1, and the air can pass through the inside and / or outside of the channel wound by the electric heating device 7. The electric heating device 7 can be pulled out from one end of the air supply channel 4-1 to facilitate the maintenance of the electric heating device 7.

[0049] During use, the temperature at the outlet of the air supply channel 4-1 can be detected and compared with the temperature in the second compartment 1-2. When the temperature difference is greater than the preset value, the electric heating device 7 can be controlled to start by the controller.

[0050] In some embodiments, a flow disturbing structure 5 is arranged in the air supply channel 4-1, so that in the air supply direction, the electric heating device 7 is located in front of the flow disturbing structure 5 in the air supply channel 4-1. So that, in the air supply channel 4-1, the flow disturbing structure 5 first reduces the air flow speed of the air supply, and then the electric heating device 7 heats the air to ensure the electric heating effect.

[0051] In some embodiments, the electric heating device 7 can be located at the position on the air supply channel 4-1 corresponding to the second compartment 1-2, which can avoid having a great impact on the temperature in the first compartment 1-1. Or the electric heating device 7 is located at the junction of the first compartment 1-1 and the second compartment 1-2. For example, the compartment 1 is divided into the first compartment 1-1 and the second compartment 1-2 by a partition 8, and the air supply channel 4-1 penetrates through the partition 8. The position of the electric heating device 7 on the air supply channel 4-1 is located on the partition 8. By setting it at this position, the influence of the electric heating device 7 on the temperatures in both the first compartment 1-1 and the second compartment 1-2 can be reduced simultaneously. It should be noted that the electric heating device 7 being located at the junction of the first compartment 1-1 and the second compartment 1-2 means that the electric heating device 7 is completely located at the junction position, or part of the electric heating device 7 is located in the first compartment 1-1 and part is located in the second compartment 1-2. Preferably, the part located in the first compartment 1-1 is less than the part located in the second compartment 1-2, so as not to affect the first compartment 1-1. This is because, even if a small part of the electric heating device 7 is located in the first compartment 1-1, due to the very low temperature in the air supply channel 4-1 and the air supply direction deviating from the direction of the first compartment 1-1, when the length is small enough, the heat-absorbing air mass quickly flows to the other side of the partition 8, and thus will not have an impact on the outside.

[0052] In some embodiments, to facilitate the formation of the ventilation channel 4 and reduce costs. Here, it is preferred that the enclosure 2 is connected to the compartment 1 and encloses the ventilation channel 4 together with the compartment 1. At this time, the enclosure 2 can enclose the ventilation channel 4 with the inner compartment wall on one side of the compartment 1, or can enclose the ventilation channel 4 with the inner corners of the box body.

[0053] In some embodiments, the part of the compartment 1 corresponding to the air supply channel 4-1 can contact and exchange heat with the gas in the air supply channel 4-1. That is, the wall surface of the part of the compartment 1 that participates in enclosing the air supply channel 4-1 and faces the air supply channel 4-1 contacts the gas in the air supply channel 4-1, so that the compartment 1 can exchange heat with the gas to heat the gas in the air supply channel 4-1 and increase the air supply temperature. By making full use of the temperature of the compartment 1, different temperature zones can be achieved without setting heating equipment, with high space utilization rate, capable of providing a larger cargo capacity, lower cost, and at the same time reducing energy consumption and saving energy. As described below, when the ventilation channel 4 is enclosed by the enclosure 2 and the inner wall of the compartment 1, this will cause the part of the compartment 1 corresponding to the air supply channel 4-1 to face the gas in the air supply channel 4-1 and contact each other. When the compartment 1 does not adopt a completely heat-insulated structure, at this time, in the external environment, especially in a high-temperature environment, the compartment 1 will heat up, and the compartment 1 will transfer a small amount of heat to the inner wall surface.

[0054] In some embodiments, the compartment wall of the compartment 1 includes an outer skin 1-5, an inner skin 1-7, and a thermal insulation layer 1-6 disposed between the outer skin 1-5 and the inner skin 1-7. The outer skin 1-5 is made of fiberglass or aluminum. The thermal insulation layer 1-6 is made of extruded polystyrene foam or rigid polyurethane foam. The inner skin 1-7 is made of fiberglass or aluminum. The density of fiberglass is 1800 kg / m3, the thermal conductivity is 0.52 W / (m*K), and the specific heat capacity is 1.26 kJ / (kg*K). The density of aluminum is 2700 kg / m3, the thermal conductivity is 203 W / (m*K), and the specific heat capacity is 0.92 kJ / (kg*K). The density of rigid polyurethane foam is 35 kg / m3, the thermal conductivity is 0.024 W / (m*K), and the specific heat capacity is 1.38 kJ / (kg*K). The density of extruded polystyrene foam is 35 kg / m3, the thermal conductivity is 0.032 W / (m*K), and the specific heat capacity is 1.38 kJ / (kg*K). Fiberglass has good airtightness and heat preservation performance. Rigid polyurethane foam and extruded polystyrene foam have good heat preservation performance, so that the temperatures in the first compartment 1-1 and the second compartment 1-2 are more stable, and the influence of the external environmental temperature on the internal temperature is reduced. It can be understood that for the part of the compartment 1 corresponding to the air supply channel 4-1, which exchanges heat with the gas in the air supply channel 4-1, the certain heat conduction performance of the above-mentioned compartment 1 material can be utilized to heat the gas in the air supply channel 4-1 to a certain extent, especially applicable to the situation where the external environmental temperature is much higher than the temperature of the second compartment 1-2, or the situation where the temperature difference requirements between the first compartment 1-1 and the second compartment 1-2 are relatively low.

[0055] In some embodiments, the surrounding member 2 is disposed at the inner corners of the cold chain transportation compartment. One side edge of the surrounding member 2 is connected to the wall surface on one side of the inner corner, and the other side edge is connected to the wall surface on the other side of the inner corner. It should be noted that the inner corner refers to the angular position where two inner wall surfaces of the compartment 1 intersect, such as the inner corner at the connection between the top wall surface 1-3 and the side wall surface 1-4. At this time, the upper side edge of the surrounding member 2 is fixedly connected to the top wall surface 1-3 of the compartment 1, and the lower side edge is fixedly connected to the side wall surface 1-4 of the compartment 1. By arranging at the inner corners, the use of the surrounding member 2 can be better saved, and at the same time, the space occupation of the compartment 1 can be better avoided. It should be noted that as described above, the ventilation channel 4 can also have a square or circular cross-section, and of course, it can also be other shapes, such as through the surrounding member 2, a ventilation channel 4 with a triangular or rectangular cross-section can be surrounded.

[0056] In some embodiments, the first side of the two opposite sides of the heat-conducting spacer 3 can be connected to the inner corner of the box body 1, and the second side can be joined to the surrounding member 2. This installation method can facilitate the installation of the heat-conducting spacer 3 and reduce the installation trouble. It should be noted that the connection of the first side to the inner corner of the box body 1 can be a simple lap joint or a fixed connection. For the convenience of installation, bonding can be used because the force here is exactly the acting force in the abutting direction. The connection between the second side and the surrounding member 2 can be a fixed connection or a simple abutting relationship. In practical applications, it can be set according to needs. By connecting the box body 1 with the first side and the surrounding member 2 with the second side, the ventilation channel 4 can be better separated to better guide the flow of the air body.

[0057] Further, the side of the second side away from the air supply channel 4-1 can be abutted against the surrounding member 2. In practical applications, generally, the air pressure in the air supply channel 4-1 is higher than that in the air return channel 4-2. Under the action of the air pressure difference, the heat-conducting spacer 3 has a tendency to move towards the air return channel 4-2. At this time, the air pressure difference can act on the second side to make the second side better abut against the surrounding member 2 to achieve a better fixing effect. At this time, a sealing member can be added between the two to further reduce the flow of the air body between the air supply channel 4-1 and the air return channel 4-2.

[0058] In some embodiments, the surrounding member 2 can be a plate member, which can be a flat plate member. At this time, it can cooperate with the inner corner to form a triangular ventilation channel 4. At this time, the first side of the two opposite sides of the heat-conducting spacer 3 is connected to the inner corner, and the second side is joined to the surrounding member 2. At this time, the heat-conducting spacer 3 can further divide the triangular ventilation channel 4 into two triangular channels, which are respectively used as the air supply channel 4-1 and the air return channel 4-2.

[0059] In some embodiments, the surrounding member 2 can be in a plate shape and be inclined. The upper side edge of the surrounding member 2 can be used to connect to the top wall surface 1-3 of the box body 1, and the lower side edge can be used to connect to the side wall surface 1-4 on one side in the left-right direction of the box body 1 to surround the ventilation channel 4. For the convenience of installation, the upper side edge of the surrounding member 2 can form a first folded edge portion 2-1 to be attached to the top wall surface 1-3 of the box body 1, and they can be connected by riveting, welding or bonding, etc. The lower side edge of the surrounding member 2 can form a second folded edge portion 2-2 to be attached to the side wall on one side in the left-right direction of the box body 1, and they can be connected by riveting, welding or bonding, etc. At this time, the first folded edge portion 2-1 and the second folded edge portion 2-2 are in a vertical state.

[0060] The longitudinal direction of the heat-conducting spacer 3 is the same as that of the surrounding member 2. It can also be plate-shaped and inclined. It can align the upper side edge of the heat-conducting spacer 3 with the upper side edge of the surrounding member 2 in the up-down direction of the compartment 1 and / or align it with the lower side edge of the surrounding member 2 in the left-right direction of the compartment 1, so that the upper side edge of the heat-conducting spacer 3 is installed on the same inner wall surface of the compartment 1 as the upper side edge of the surrounding member 2, or the lower side edge of the heat-conducting spacer 3 is installed on the same inner wall surface of the compartment 1 as the lower side edge of the surrounding member 2, or directly installed on the inner corner. The lower side edge of the heat-conducting spacer 3 abuts against the middle of the surrounding member 2 to divide the area surrounded by the surrounding member 2 into a supply air channel 4-1 and a return air channel 4-2. Specifically, a third folded edge portion 3-1 can be formed on the upper side of the heat-conducting spacer 3 and bent downward to be coplanar with the second folded edge portion 2-2 and installed on the same inner wall surface of the compartment 1, where the second folded edge portion 2-2 can also be bent downward. A fourth folded edge portion 3-2 is formed on the lower side of the heat-conducting spacer 3 to abut against the upper surface of the surrounding member 2, and a sealing gasket can be added between them. The fourth folded edge portion 3-2 is preferably inclined downward. At this time, the upper side channel of the heat-conducting spacer 3 is the supply air channel 4-1, which is under downward pressure and is transmitted to the surrounding member 2 through the fourth folded edge portion 3-2, so that the contact with the surrounding member 2 is closer, just like the side of the second side portion of the heat-conducting spacer 3 away from the supply air channel 4-1 abuts against the surrounding member 2 in the above embodiment.

[0061] In some embodiments, the upper side channel of the heat-conducting spacer 3 can be the supply air channel 4-1 and the lower side channel can be the return air channel 4-2. Of course, to achieve this, the heat-conducting spacer 3 can be placed horizontally or inclined. When it is inclined, the side inclined upward faces the supply air channel 4-1, and the side inclined downward faces the return air channel 4-2. Of course, in some other embodiments, the return air channel 4-2 can be on the upper side and the supply air channel 4-1 can be on the lower side.

[0062] In some embodiments, for the convenience of setting the channel openings, it is preferred here that the surrounding member 2 is provided with an air supply opening 4-3 communicating with the second compartment 1-2 at the part corresponding to the supply air channel 4-1; the surrounding member 2 is provided with an air return opening 4-4 communicating with the second compartment 1-2 at the part corresponding to the return air channel 4-2. In the first compartment 1-1, the end face of the surrounding member 2 can be set to be open, and the heat-conducting spacer 3 extends to the end face to form a channel opening corresponding to the first compartment 1-1.

[0063] In some embodiments, the air supply opening 4-3 can be located on one side of the enclosure 2 close to the top wall surface 1-3 of the compartment 1; the air return opening 4-4 is located on one side of the enclosure 2 close to the adjacent side wall surface 1-4 of the compartment 1. Here, the side wall surface 1-4 refers to the side wall surface 1-4 in the left-right direction, generally a vertical wall surface. Setting the air supply opening 4-3 on one side of the enclosure 2 close to the top wall surface 1-3 of the compartment 1 can make the position of the air supply opening 4-3 higher. This is because when the cold chain transportation compartment is in use, generally a reserved space is provided at the top. By raising the position of the air supply opening 4-3, the air blown out from the air supply opening 4-3 can be better dispersed and flow in the top space. Of course, the air supply opening 4-3 can blow air horizontally, or can be inclined upward or downward in the horizontal direction. Inclined upward in the horizontal direction to blow towards the inner wall surface of the top of the compartment 1, so as to utilize the temperature of the inner wall surface of the top of the compartment 1. It should be noted that in order to better realize the flow of the air body in the second compartment 1-2, the air supply opening 4-3 can be horizontally oriented, that is, left-right oriented, horizontal, inclined upward or inclined downward; and the air supply opening 4-3 is downward, so that the air can flow in a circular manner inside. Specifically, the air supply opening 4-3 can extend in a long strip shape in the extending direction of the air supply channel 4-1, or a plurality of air supply openings 4-3 can be arranged in the extending direction of the air supply channel 4-1. The extending direction of the air supply channel 4-1 is generally the juxtaposed direction of the first compartment 1-1 and the second compartment 1-2, and generally the juxtaposed direction is the front-back direction. The end of the air supply channel 4-1 generally extends to one end of the second compartment 1-22 far from the first compartment 1-1. Similarly, the second air inlet 4-5 can also extend in a long strip shape in the extending direction of the air return channel 4-2, and / or, a plurality of air return openings 4-4 can be arranged in the extending direction of the air return channel 4-2. Of course, the air supply openings 4-3 and the air supply openings 4-3 can be aligned, with the same length and shape. When there are multiple ones, they can be aligned one by one to ensure better formation of a circular flow of the air body.

[0064] In some embodiments, a guide plate 2-3 extending towards the outside of the air supply channel 4-1 is provided at the air supply opening 4-3. The guide plate 2-3 can guide the air sent out from the air supply opening 4-3 to the upper part of the second compartment 1-2. Through the guide plate 2-3, it can be avoided that the air output from the air supply channel 4-1 blows towards the lower part of the second compartment 1-2. The guide plate 2-3 can be integrally formed with the enclosure 2, or the guide plate 2-3 can be fixed at the air supply opening 4-3 by riveting or welding or other means. Specifically, the guide plate 2-3 is formed by bending the plate formed when the air supply opening 4-3 is opened. For example, when processing the long-strip air supply opening 4-3, three sides can be cut out, and the other side remains on the enclosure 2, and then the plate is bent outward. The extending direction of the plate is horizontal or inclined upward.

[0065] In some embodiments, the blower 6 is disposed at one end of the enclosure 2, and both the enclosure 2 and the heat-conducting spacer 3 are mounted on the side wall of the blower 6. This facilitates the unified installation of the enclosure 2, the heat-conducting spacer 3, and the blower 6 on the inner wall of the box body 1.

[0066] In some embodiments, the air inlet 4-5 and the air outlet 4-6 of the blower 6 can face away from each other on both sides respectively. Alternatively, the air inlet 4-5 of the blower 6 faces in the horizontal direction, and the air inlet 4-5 faces downward. At this time, the axis of the blower 6 can be vertically arranged.

[0067] In some embodiments, an air inlet 4-5 of the air supply channel 4-1 can be formed at the end face of the enclosure 2, and the end of the enclosure 2 abuts against the air outlet side of the blower 6 to connect the air outlet of the blower 6 for docking. At this time, the air outlet direction of the blower 6 is consistent with the extending direction of the ventilation channel 4, that is, consistent with the air supply direction of the air supply channel 4-1, so as to better introduce air. The end face of the enclosure 2 refers to the end face at one end of the extending direction, that is, the edge of the end face of the enclosure 2 located in the first compartment 1-1, as well as the edge of the end face of the heat-conducting spacer 3 and the inner wall surface of the box body 1 surround an air inlet 4-5 of an air supply channel 4-1, while the edge of the end face of the enclosure 2 located in the second compartment 1-2 and the inner wall of the box body 1 are sealed by a blocking plate.

[0068] In some embodiments, the air inlet 4-5 of the blower 6 can be arranged downward. At this time, the air outlet 4-6 of the return air channel 4-2 opened at the end of the enclosure 2 is also arranged downward, and at the same time, the end of the channel cavity where the return air channel 4-2 is located is blocked by the blower 6 housing to serve as an end wall.

[0069] In some embodiments, an evaporator is generally arranged in the first compartment 1-1 as a refrigeration device 9. Here, it is preferred that the blower 6 is arranged close to the air outlet side of the evaporator so as to obtain low-temperature gas as soon as possible, so that the cooling time of the second compartment 1-2 is advanced and the cooling speed is increased during temperature adjustment.

[0070] Based on the cold-chain transportation box provided in the above embodiments, the present invention also provides a cold-chain transport vehicle, which includes any one of the cold-chain transportation boxes in the above embodiments and includes a vehicle frame, and the cold-chain transportation box is installed on the vehicle frame. Since the cold-chain transportation box adopts the cold-chain transportation box in the above embodiments, the beneficial effects of this cold-chain transport vehicle can be referred to the above embodiments.

[0071] In this specification, the various embodiments are described in a progressive manner. The key points of each embodiment are the differences from other embodiments. The same or similar parts among the various embodiments can be referred to each other.

[0072] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to the embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cold chain transport box, comprising a box body (1), wherein the box cavity of the box body (1) comprises a first compartment (1-1) and a second compartment (1-2) separated from each other, wherein the working temperature of the first compartment (1-1) is lower than the working temperature of the second compartment (1-2), and wherein: Also includes: A surrounding piece (2) is arranged in the compartment cavity, and one end of the surrounding piece (2) extends to the first compartment (1-1), and the other end extends to the second compartment (1-2) and surrounds to form a ventilation passage (4); A heat-conducting spacer (3) is arranged in the ventilation channel (4), extending along the ventilation channel (4) to separate the ventilation channel (4) into an air supply channel (4-1) and an air return channel (4-2); the heat-conducting spacer (3) is capable of conducting heat between the air supply channel (4-1) and the air return channel (4-2); at least one of the air supply channel (4-1) and the air return channel (4-2) is provided with a spoiler structure (5); openings at both ends of the air supply channel (4-1) are respectively connected to the first compartment (1-1) and the second compartment (1-2); openings at both ends of the air return channel (4-2) are respectively connected to the first compartment (1-1) and the second compartment (1-2); The fan (6) is arranged in the compartment cavity and, when turned on, can drive the gas in the first compartment (1-1) to enter the second compartment (1-2) through the air supply channel (4-1), and can drive the gas in the second compartment (1-2) to enter the first compartment (1-1) through the air return channel (4-2).

2. The cold chain transport compartment according to claim 1, characterized in that: It also includes an electric heating device (7), which is used to heat the air body in the air supply channel; and in the air supply direction, the electric heating device is located in front of the spoiler structure in the air supply channel.

3. The cold chain transport compartment according to claim 2, characterized in that: The electric heating device is arranged on the air supply channel at the second compartment, or at the junction of the first compartment and the second compartment; the electric heating device is arranged in the air supply channel, suspended or attached to the inner wall of the air supply channel and protruding from the air supply channel.

4. The cold chain transport compartment according to claim 1, characterized in that: The enclosure is connected to the box and encloses the ventilation passage together with the inner wall of the box. The portion of the box corresponding to the air supply passage faces the gas in the air supply passage and can contact and exchange heat.

5. The cold chain transport compartment according to claim 1, characterized in that: The enclosure is arranged at the inner corner of the compartment, with one side edge of the enclosure connected to one side wall of the inner corner and the other side edge connected to the other side wall of the inner corner; the first side of the two away sides of the heat conductive insulation is connected to the inner corner, and the second side is connected to the enclosure; the side of the second side away from the air supply channel is against the enclosure.

6. The cold chain transport compartment according to claim 5, characterized in that: The enclosure is a flat plate, the upper edge of which is fixedly connected to the top wall of the compartment, and the lower edge of which is fixedly connected to the side wall of the compartment.

7. The cold chain transport compartment according to claim 6, characterized in that: The upper side edge of the enclosure forms a first folded edge portion that is bent outward from the ventilation channel so as to be abutted against the top wall and relatively fixedly connected; the lower side edge of the enclosure is bent downward to form a second folded edge portion so as to be abutted against the side wall and fixedly connected; the first folded edge portion and the second folded edge portion are perpendicular to each other; the upper side edge of the heat-conductive insulation forms a third folded edge portion, which is bent downward so as to be coplanar with the second folded edge portion and installed on the same side wall surface; the lower side edge of the heat-conductive insulation forms a fourth folded edge portion so as to be abutted against the upper surface of the enclosure and a sealing gasket is added therebetween; the fourth folded edge portion is arranged to be tilted downward.

8. The cold chain transport compartment according to claim 6, characterized in that: The upper channel of the heat-conducting insulation is the air supply channel, and the lower channel is the return air channel; the part of the enclosure corresponding to the air supply channel is provided with an air supply port (4-3) connected to the second compartment; the part of the enclosure corresponding to the return air channel is provided with a return air port (4-4) connected to the second compartment.

9. The cold chain transport compartment according to claim 8, characterized in that: The air supply port is located on a side of the enclosure close to the top wall of the compartment; the return air port is located on a side wall of the enclosure close to an adjacent side of the compartment; the air supply direction of the air supply port is horizontal or inclined upward; and the return air port is arranged downward.

10. The cold chain transport compartment according to claim 9, characterized in that: A guide plate extending toward the outside of the air supply channel is provided at the air supply outlet, and the guide plate is used to guide the air delivered from the air supply outlet to the upper part of the second compartment; the guide plate is formed by bending a plate formed when the air supply outlet is opened.

11. The cold chain transport compartment according to any one of claims 1 to 10, characterized in that: The fan is arranged at one end of the enclosure, and the enclosure and the heat-conducting spacer are both installed on the side wall of the fan.

12. The cold chain transport compartment according to claim 11, characterized in that: The fan is arranged at one end of the enclosure located in the first compartment; the air outlet side of the fan faces the end face of the enclosure and is connected to the air inlet formed by the air supply channel on the end face of the enclosure; the air inlet side of the fan faces downward, and the enclosure is provided with an air outlet of the return air channel in the part of the second compartment.

13. A cold chain transport vehicle, comprising a frame, characterized in that: It also includes a cold chain transport compartment as described in any one of claims 1 to 12, and the cold chain transport compartment is installed on the frame.

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