Cold chain transport compartment and cold chain transport tool

Abstract

The utility model relates to the technical field of cold chain transportation, and particularly discloses a cold chain transportation compartment which comprises a compartment body, a refrigerating device, an air duct partition piece and a fan. Wherein a first compartment and a second compartment which are isolated from each other are arranged in the compartment body; part of the air duct partition piece is arranged in the first compartment, part of the air duct partition piece is arranged in the second compartment, the air duct partition piece is connected with the compartment body, an air supply duct is defined by the air duct partition piece and the compartment body, the portion, corresponding to the air supply duct, of the compartment body faces air in the air supply duct for contact heat exchange, and the air supply duct is provided with an air inlet communicating with the first compartment and an air outlet communicating with the second compartment; the fan is used for guiding air in the first compartment into the air supply duct and feeding the air into the second compartment. According to the cold chain transport compartment, air outlet of a single refrigerating device is utilized, the temperature of the compartment body is fully utilized, different temperature zones can be achieved without heating equipment, the space utilization rate is high, cost is low, and energy consumption is low. The utility model further discloses a cold chain transportation tool which also has the technical effects.

Description

Technical Field

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

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

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

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

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

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

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

[0008] A cold chain transport compartment, comprising:

[0009] A body, wherein a first compartment and a second compartment are provided in the body, and the operating temperature of the first compartment is lower than the operating temperature of the second compartment;

[0010] A refrigeration device, provided in the compartment, for adjusting the temperature in the first compartment;

[0011] an air duct partition, wherein a portion of the air duct partition is disposed in the first compartment and a portion of the air duct partition is disposed in the second compartment, and the air duct partition is connected to the compartment and enclosed with the compartment to form an air supply duct, a portion of the compartment corresponding to the air supply duct faces the gas in the air supply duct for contact heat exchange, and an air inlet is disposed in the air supply duct communicating with the first compartment and an air outlet is disposed in the air supply duct communicating with the second compartment;

[0012] The fan is arranged in the compartment and is used to guide the gas in the first compartment into the air supply duct and then into the second compartment.

[0013] Optionally, in the above-mentioned cold chain transport compartment, one side edge of the air duct partition is connected to the top wall of the compartment, and the other side edge is connected to the top wall of the compartment, the side wall of the compartment, or one of the connection points between the top wall and the side wall.

[0014] Optionally, in the above-mentioned cold chain transport compartment, the compartment body includes an outer skin, an inner skin and an insulation layer arranged between the outer skin and the inner skin, the outer skin includes fiberglass or aluminum, the insulation layer includes extruded polystyrene foam plastic or polyurethane rigid foam plastic, and the inner skin includes fiberglass or aluminum.

[0015] Optionally, in the above-mentioned cold chain transport compartment, the air duct partition includes a first air duct partition and a second air duct partition, the first air duct partition is connected to the compartment body, the second air duct partition is arranged in the space enclosed by the first air duct partition and the compartment body, and divides it into a return air duct and the supply air duct, the return air duct is connected to the second compartment and is provided with a return air inlet, and is connected to the first compartment and is provided with a return air outlet, and the second air duct partition is a heat conductor.

[0016] Optionally, in the above-mentioned cold chain transport compartment, one side edge of the first air duct partition is connected to the top wall of the compartment, and the other side edge is connected to the side wall of the compartment; one side edge of the second air duct partition is connected to the middle part of the first air duct partition, and the other side edge is connected to the top wall, the side wall, or one of the connection points between the top wall and the side wall.

[0017] Optionally, in the above-mentioned cold chain transport compartment, the first air duct partition is L-shaped, the end of the vertical section of the L-shape is connected to the top wall of the compartment, and the horizontal end is connected to the side wall of the compartment, and one side edge of the second air duct partition is connected to the horizontal section, and the other side edge is connected to the top wall.

[0018] Optionally, the above-mentioned cold chain transport compartment further includes:

[0019] A first temperature sensor, disposed at the air outlet, for detecting the gas temperature at the air outlet;

[0020] A second temperature sensor is provided on the inner wall surface of the compartment corresponding to the air supply duct portion, and is used to detect the temperature of the inner wall surface;

[0021] A controller, wherein the first temperature sensor, the second temperature sensor and the fan are respectively connected to the controller, and the controller is used to adjust the rotation speed of the fan according to the detection temperature of the first temperature sensor and the detection temperature of the second temperature sensor.

[0022] Optionally, in the above-mentioned cold chain transport compartment, the portion of the compartment body located in the second compartment is provided with at least one heat-conducting component, one end of the heat-conducting component extends to the air supply duct, and the other end extends to the outer surface of the compartment body.

[0023] Optionally, in the above-mentioned cold chain transport compartment, a heat-collecting material layer is provided on the outer surface of the compartment body, and the heat-collecting material layer is in contact with the heat-conducting component.

[0024] Compared with the prior art, the cold chain transport compartment and cold chain transport tool provided by the utility model have at least the following beneficial effects:

[0025] The cold chain transport box provided by the utility model comprises a box body, a refrigeration device, an air duct partition and a fan. Among them, a first compartment and a second compartment which are isolated are provided in the box body; the refrigeration device is provided in the box body for adjusting the temperature in the first compartment; part of the air duct partition is provided in the first compartment, and part of the air duct partition is provided in the second compartment, and the air duct partition is connected to the box body and enclosed with the box body to form an air supply duct, the part of the box body corresponding to the air supply duct faces the gas in the air supply duct for contact heat exchange, the air supply duct is provided with an air inlet in communication with the first compartment, and is provided with an air outlet in communication with the second compartment; the fan is provided in the box body for introducing the gas in the first compartment into the air supply duct and delivering it to the second compartment.

[0026] By using the cold chain transport compartment provided by the present application, the refrigeration device can refrigerate the first compartment. The gas in the first compartment enters the second compartment through the air supply duct under the action of the fan to cool the second compartment. When the gas flows through the air supply duct, it can exchange heat with the compartment, so that the gas temperature rises, and the gas after the temperature rises is discharged from the air outlet to cool the second compartment. And because the temperature of the air outlet is higher than the gas temperature of the first compartment, the gas temperature of the second compartment is higher than the gas temperature of the first compartment, that is, a multi-temperature zone distribution is formed, which more comprehensively covers the application requirements of different goods for different temperatures when the compartment is loaded. In summary, the cold chain transport compartment provided by the present application does not need to set up multiple refrigeration devices, uses the air outlet of a single refrigeration device, and makes full use of the temperature of the compartment. Different temperature zones can be achieved without setting up heating equipment, and the space utilization rate is high. It can provide a larger cargo capacity, and the cost is low, while reducing energy consumption and saving energy. And it can be conveniently assembled using the existing compartment for transformation, and has better versatility.

[0027] In order to achieve the above purpose, the utility model also provides a cold chain transport tool, which includes any of the above cold chain transport compartments. Since the above cold chain transport compartment has the above technical effects, the cold chain transport tool having the cold chain transport compartment should also have corresponding technical effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings 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.

[0029] Figure 1 It is a perspective top view schematic diagram of a cold chain transport compartment of another specific embodiment of the utility model;

[0030] Figure 2 for Figure 1 AA cross-sectional diagram of ;

[0031] Figure 3 It is a perspective top view schematic diagram of a cold chain transport compartment of a specific embodiment of the utility model;

[0032] Figure 4 for Figure 3 3D perspective view of the cold chain transport compartment (refrigeration unit not shown);

[0033] Figure 5 for Figure 3 Schematic diagram of the middle air duct partition;

[0034] Figure 6 for Figure 3 AA cross-sectional diagram of ;

[0035] Figure 7 for Figure 6 A partial enlarged schematic diagram of part A.

[0036] The following are marked in the accompanying drawings:

[0037] Box 100, refrigeration device 200, air duct partition 300, air supply duct 400, fan 500, return air duct 600, mounting frame 700;

[0038] A first compartment 110, a second compartment 120, a heat insulation board 130, a top wall 140, a side wall 150, an outer skin 160, a thermal insulation layer 170, and an inner skin 180;

[0039] Air conditioning outlet 210;

[0040] A first air duct partition 310, a second air duct partition 320, a vertical section 311, and a horizontal section 312;

[0041] Air inlet 410, air outlet 420;

[0042] Return air inlet 610 and return air outlet 620 . DETAILED DESCRIPTION

[0043] The embodiment of the utility model discloses a cold chain transport box and a cold chain transport tool to achieve multi-temperature zone control in the box to meet the different storage temperature requirements of different goods. The space utilization rate is high to provide a larger cargo capacity, and the cost and energy consumption are low, thereby saving energy.

[0044] 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.

[0045] The cold chain transport compartment provided in the present application can be used for cold chain transport tools. Cold chain transport tools include but are not limited to cold chain transport vehicles, cold chain transport aircraft, cold chain transport ships, etc. The cold chain transport vehicle is mainly a cold chain transport truck, and of course the cold chain transport vehicle can also be a transport vehicle such as a train. Correspondingly, the cold chain transport compartment includes but is not limited to the compartment of the cold chain transport vehicle, and can also be a compartment provided on a transport aircraft, a transport ship, etc. The cold chain transport compartment provided in the present application includes a compartment, a refrigeration device, an air duct partition and a fan. The compartment is separated into at least two compartments, such as the first compartment and the second compartment separated from each other. Of course, in some embodiments, a third compartment or more compartments can be further separated. Generally speaking, the target temperature of the first compartment and the second compartment temperature control is not the same, and the former has a lower temperature, that is, the working temperature of the first compartment is lower than the working temperature of the second compartment. The first compartment and the second compartment can be expressed in at least the following ways: as one way, the first compartment is a freezer and the second compartment is a refrigerator; as another way, the first compartment is a deep freezer and the second compartment is a refrigerator or a fresh ice compartment; as another way, the temperature control temperature of the first compartment is about minus 18 degrees Celsius, and the temperature control temperature of the second compartment is 2 to 6 degrees Celsius, and it is required that neither place should be lower than 0 degrees Celsius; as another way, the temperature of the first compartment is 2 to 10 degrees Celsius lower than the temperature of the second compartment, specifically lower than 5 to 8 degrees Celsius. The compartment body separates the first compartment and the second compartment, or separates more compartments, generally in the front and rear directions of the compartment, and of course can also be separated in the up and down directions, left and right directions. It should be noted that the forward direction in the context is the driving direction of the cold chain transport vehicle. The refrigeration device is used to cool the first compartment, and the fan is used to introduce the gas of the first compartment into the air supply duct and send it into the second compartment. In the present application, the air duct partition is combined with the compartment to form an air supply duct, and the gas in the air supply duct is heated by the part of the compartment that forms the air supply duct to increase the temperature of the gas sent to the second compartment. In the following embodiments, the arrangement of the air duct partition and the matching structure with the compartment are mainly described.

[0046] In some embodiments, see Figure 1-Figure 2 The cold chain transport compartment provided in the present application includes a compartment 100, a refrigeration device 200, an air duct partition 300 and a fan 500. Among them, the compartment 100 is provided with a first compartment 110 and a second compartment 120 which are isolated from each other, and the first compartment 110 and the second compartment 120 can be separated by a heat insulation board 130 arranged in the compartment 100. The refrigeration device 200 is arranged in the compartment 100 for adjusting the temperature in the first compartment 110. It is understandable that the refrigeration device 200 can be installed in the first compartment 110 or outside the first compartment 110, and the cold air outlet 210 of the refrigeration device 200 is connected to the first compartment 110. Specifically, the refrigeration device 200 is arranged on the outer wall of the compartment 100, the compartment 100 is provided with a vent, and the cold air inlet is arranged at the vent to communicate with the first compartment 110. The refrigeration device 200 is generally a mechanical refrigeration, and the specific refrigeration device 200 can be an evaporator, and of course it can also be other mechanical refrigeration equipment.

[0047] Part of the air duct partition 300 is provided in the first compartment 110, and part of it is provided in the second compartment 120, and the air duct partition 300 is connected to the compartment 100 and encloses the air supply duct 400 with the compartment 100, and the air supply duct 400 communicates with the first compartment 110 and is provided with an air inlet 410, and communicates with the second compartment 120 and is provided with an air outlet 420, specifically, the part of the air supply duct 400 located in the first compartment 110 is provided with an air inlet 410, and the part located in the second compartment 120 is provided with an air outlet 420. The air duct partition 300 cooperates with the compartment 100 to enclose the air supply duct 400, and it can be understood that the air duct partition 300 can be enclosed with part of the compartment 100 to form the air supply duct 400, or part of the air duct partition 300 can be enclosed with part of the compartment 100 to form the air supply duct 400. The air supply duct 400 can communicate with the first chamber 110 and the second chamber 120. Specifically, one end of the air supply duct 400 extends to the first chamber 110, and the other end extends to the second chamber 120. The gas in the first chamber 110 can enter the air supply duct 400 through the air inlet 410 and be discharged from the air supply duct along the air supply duct 400 into the second chamber 120. The number, shape and position of the air supply duct can be set as needed, and are not specifically limited here.

[0048] The portion of the compartment 100 corresponding to the air supply duct 400 faces the gas in the air supply duct 400 for contact heat exchange, that is, the wall surface of the portion of the compartment 100 that participates in forming the air supply duct 400 facing the air supply duct 400 is in contact with the gas in the air supply duct 400, so that the compartment 100 can exchange heat with the gas to heat the gas in the air supply duct 400, increase the air supply temperature, and make the temperature of the second compartment 120 higher than that of the first compartment 110.

[0049] The fan 500 is provided in the body 100, and is used to guide the gas in the first chamber 110 into the air supply duct 400 and send it into the second chamber 120. The fan 500 is provided in the body 100, and can be provided at the air inlet 410 of the air supply duct 400, or at the air supply outlet of the air supply duct 400, or inside the air supply duct 400.

[0050] By using the cold chain transport compartment provided by the present application, the refrigeration device 200 can refrigerate the first compartment 110. The gas in the first compartment 110 enters the second compartment 120 through the air supply duct 400 under the action of the fan 500 to cool the second compartment 120. When the gas flows through the air supply duct 400, it can exchange heat with the compartment 100, so that the gas temperature increases. The gas with increased temperature is discharged from the air outlet 420 to cool the second compartment 120. And because the temperature of the air outlet 420 is higher than the gas temperature of the first compartment 110, the gas temperature of the second compartment 120 is higher than the gas temperature of the first compartment 110, that is, a multi-temperature zone distribution is formed to meet the different storage temperature requirements of different goods. In summary, the cold chain transport box provided by the present application does not need to be equipped with multiple refrigeration devices 200, but uses the air outlet of a single refrigeration device 200 and fully utilizes the temperature of the box body 100, and can achieve different temperature zones without the need for heating equipment, has high space utilization, can provide a larger cargo capacity, and has low cost, while reducing energy consumption and saving energy. It can also be conveniently assembled and modified using the existing box body 100, and has better versatility.

[0051] In some embodiments, the first compartment 110 is arranged in front of the second compartment 120 to facilitate the installation of the refrigeration device 200 and other equipment in the mechanical refrigeration system where the refrigeration device 200 is located. Specifically, the refrigeration device 200 is installed on the side of the first compartment 110 away from the second compartment 120. In order to allow the first compartment 110 to have enough space to store more items, the refrigeration device 200 is arranged outside the first compartment 110, such as attached to the outside of the compartment 100, and the cold air outlet 210 is directed toward the first compartment 110, and is connected to the first compartment 110 through the vents opened on the compartment 100.

[0052] In some embodiments, one side edge of the air duct partition 300 is connected to the top wall 140 of the compartment 100, and the other side edge is connected to the top wall 140 of the compartment 100, the side wall 150 of the compartment 100, or the connection between the top wall 140 and the side wall 150. It can be understood that the side wall 150 of the box body refers to the side wall surface whose extension direction is consistent with the arrangement direction of the first compartment 110 and the second compartment 120. The two side edges of the air duct partition 300 are arranged as above, so that at least part of the air supply duct 400 is extended along the top wall 140 of the compartment 100 and contacts the gas in the air supply duct 400 for heat exchange. When both side edges of the air duct partition 300 are connected to the top wall 140 of the compartment 100, the air supply duct 400 as a whole extends along the top wall 140 and contacts the gas in the air supply duct 400 for heat exchange. Since the top wall 140 can better receive the heat from the sun, the wall temperature is relatively high, and the heat exchange efficiency with the gas in the air supply duct 400 is higher.

[0053] In some embodiments, the air duct partition 300 is disposed at an edge of the compartment 100 to reduce the impact on the cargo loading in the core cargo storage area in the middle of the compartment 100 .

[0054] In some embodiments, see Figure 6 and Figure 7 The body 100 includes an outer skin 160, an inner skin 180 and an insulation layer 170 disposed between the outer skin 160 and the inner skin 180. The outer skin 160 includes glass fiber reinforced plastic or aluminum, the insulation layer 170 includes extruded polystyrene foam or polyurethane rigid foam, and the inner skin 180 includes glass fiber reinforced plastic or aluminum. The density of glass fiber reinforced plastic is 1800 kg / m 3 , thermal conductivity is 0.52W / (m*K), specific heat capacity is 1.26kJ / (kg*K); the density of aluminum is 2700kg / m 3 , thermal conductivity is 203W / (m*K), specific heat capacity is 0.92kJ / (kg*K); the density of polyurethane rigid foam is 35kg / m 3 , thermal conductivity is 0.024W / (m*K), specific heat capacity is 1.38kJ / (kg*K); the density of extruded polystyrene foam is 35kg / m 3, thermal conductivity is 0.032W / (m*K), and specific heat capacity is 1.38kJ / (kg*K). Fiberglass has good airtightness and thermal insulation performance, and polyurethane rigid foam plastics and extruded polystyrene foam plastics have good thermal insulation performance, so that the temperature in the first compartment 110 and the second compartment 120 is more stable, and the influence of the external environment temperature on the internal temperature is reduced. It can be understood that the part of the compartment 100 corresponding to the air supply duct 400 exchanges heat with the gas in the air supply duct 400, which can utilize the certain thermal conductivity of the above-mentioned compartment 100 material to heat the gas in the air supply duct 400 to a certain extent, which is particularly suitable for the situation where the external environment temperature is much higher than the temperature of the second compartment 120, or the situation where the temperature difference between the first compartment 110 and the second compartment 120 is required to be lower.

[0055] In some embodiments, the air duct partition 300 includes a first air duct partition 310 and a second air duct partition 320. The first air duct partition 310 is connected to the compartment 100. The second air duct partition 320 is arranged in the space enclosed by the first air duct partition 310 and the compartment 100, and the space is divided into a return air duct 600 and a supply air duct 400. The return air duct 600 communicates with the second compartment 120 and is provided with a return air inlet 610, and communicates with the first compartment 110 and is provided with a return air outlet 620. Specifically, the portion of the return air duct 600 located in the second compartment 120 is provided with a return air inlet 610, and the portion located in the first compartment 110 is provided with a return air outlet 620. Specifically, the first air duct partition 310 and the second air duct partition 320 both extend along the arrangement direction of the first compartment 110 and the second compartment 120. In this embodiment, the air duct partition 300 cooperates with the compartment 100 to enclose the supply air duct 400, and also encloses the return air duct 600. The gas in the first compartment 110 enters the second compartment 120 through the air supply duct 400 under the action of the fan 500 to cool the second compartment 120, and the return air of the second compartment 120 flows back through the return air duct 600. During assembly, the first air duct partition 310 and the second air duct partition 320 can be fixed to the inner wall of the compartment 100, without modifying the structure of the compartment 100, which is convenient for installation and can easily modify the existing cold chain transport compartment, and the modification cost is low. In addition, the above arrangement only requires the installation of the air duct on one side of the compartment 100, which saves costs and releases space.

[0056] Further, the second air duct partition 320 is a heat conducting member. If the second air duct partition 320 is a heat conducting member, heat exchange between the return air duct 600 and the air supply duct 400 can be achieved. The gas in the second compartment 120 enters the return air duct 600 through the return air inlet 610 and is discharged from the return air outlet 620 along the return air duct 600. Since the return air in the return air duct 600 is hot air whose temperature is increased after heat exchange with the goods, the gas in the second compartment 120, the wall surface of the compartment 100, etc., the hot air in the return air duct 600 is heat exchanged with the cold air in the air supply duct 400 through the heat conducting member. On the one hand, the cold air temperature of the air supply duct 400 is increased, thereby increasing the air outlet temperature of the air supply duct 400 to meet the temperature requirements of the goods in the second compartment 120. On the other hand, the temperature of the hot air in the return air duct 600 is reduced, thereby reducing the influence of the return air on the temperature of the first compartment 110.

[0057] Specifically, both sides of the second air duct partition 320 are connected to the first air duct partition 310 respectively, and the second air duct partition 320 and the first air duct partition 310 are enclosed to form the return air duct 600. The second air duct partition 320 and the compartment 100 are enclosed to form the supply air duct 400, or the second air duct partition 320, the first air duct partition 310 and the compartment 100 are enclosed to form the supply air duct 400. As set above, under the condition of the same space occupation, the supply air duct 400 can exchange heat with the wall of the compartment 100 to a greater extent, that is, the contact area between the gas in the supply air duct 400 and the wall of the compartment 100 is larger, so as to increase the temperature of the gas in the supply air duct 400, so that the temperature zone coverage is more comprehensive, and the full utilization of heat is further realized.

[0058] In some embodiments, the return air outlet 620 of the return air duct 600 is arranged close to the air inlet 410 of the air supply duct 400, so that at least part of the return air of the return air outlet 620 enters the air supply duct 400 and is sent to the second compartment 120. At least part of the air out of the return air duct 600 enters the air supply duct 400 again to mix with the air inlet of the first compartment 110. Since the temperature of the return air is relatively high, the air out temperature of the air supply duct 400 is further increased after mixing. As set above, more full utilization of the return air heat is achieved.

[0059] It is understandable that, when the return air outlet 620 of the return air duct 600 is arranged close to the air inlet 410 of the air supply duct 400, and / or the second air duct partition 320 is a heat conductive member, the return air can be used to heat the gas in the air supply duct 400. Combined with the heating of the part of the compartment 100 corresponding to the air supply duct 400 and the gas in the air supply duct 400, the air supply duct 400 can provide a higher temperature outlet, and then the first compartment 110 and the second compartment 120 can provide a larger temperature difference, so as to more comprehensively cover the application requirements of different goods for different temperatures when the compartment 100 is loaded. Specifically, when the external ambient temperature is relatively low, or the compartment 100 has excellent thermal insulation performance and the heat conduction effect is small or even negligible, the return air heating can be used as the main heating method for heating the gas in the air supply duct 400, and the heating of the gas in the air supply duct 400 by the compartment 100 is used as an auxiliary heating method.

[0060] In some embodiments, see Figure 3-Figure 7 The first air duct partition 310 is plate-shaped, and one side edge is connected to the top wall 140 of the body 100, and the other side edge is connected to the side wall 150 of the body 100. One side edge of the second air duct partition 320 is connected to the first air duct partition 310, and the other side edge is connected to the top wall 140, the side wall 150, or one of the connecting parts of the top wall 140 and the side wall 150. One side edge of the second air duct partition 320 is specifically connected to the middle of the first air duct partition 310, and the middle here refers to the position between the two side edges of the first air duct partition 310. Part of the first air duct partition 310, the second air duct partition 320 and part of the body 100 cooperate to enclose the supply air duct 400, and the remaining part of the first air duct partition 310, the second air duct partition 320 and another part of the body 100 cooperate to enclose the return air duct 600. As configured above, the first air duct partition 310 is in an inclined state, and while forming the supply air duct 400 and the return air duct 600, the height space occupied is small, thereby reducing or even ignoring the impact on the cargo capacity. According to the inclination angle of the first air duct partition 310, the connection position of the second air duct partition 320 with the first air duct partition 310 and the connection position with the compartment 100 can be set accordingly. Specifically, the first air duct partition 310 and the second air duct partition 320 are both straight plate parts. Specifically, one side edge of the second air duct partition 320 is connected to the connection between the top wall 140 and the side wall 150, and the cross-sections of the divided supply air duct 400 and the return air duct 600 are both triangular, and thus have better stability.

[0061] Furthermore, the side of the second air duct partition 320 facing the first air duct partition 310 connected to the top wall 140 is the air supply duct 400, and the other side is the air return duct 600. The gas in the air supply duct 400 is in contact with the top wall 140 for heat exchange. Since the top wall 140 is exposed to direct sunlight and has a high temperature, the compartment 100 can be better utilized to heat the gas in the air supply duct 400.

[0062] In some embodiments, refer to Figure 1-Figure 2 The first air duct partition 310 is L-shaped, the end of the L-shaped vertical section 311 is connected to the top wall 140 of the body 100, the end of the horizontal section 312 is connected to the side wall 150 of the body 100, and one side edge of the second air duct partition 320 is connected to the horizontal section 312, for example, one side edge of the second air duct partition 320 is connected to the middle of the horizontal section 312, and the other side edge is connected to the top wall 140. As configured above, the air supply duct 400 and the return air duct 600 are both quadrilaterals with a larger cross-sectional area to provide a larger air supply volume.

[0063] In some embodiments, for easy assembly, a mounting frame 700 is provided connected to the first air duct partition 310, and the fan 500 is arranged in the mounting frame 700. That is, the fan 500 is integrated into an air duct module through the mounting frame 700, the first air duct partition 310 and the second air duct partition 320, and the air duct module can be directly fixed in the compartment 100 during assembly, which is convenient for assembly.

[0064] In some embodiments, the cold chain transport compartment further includes a first temperature sensor, a second temperature sensor and a controller. The first temperature sensor is provided at the air outlet 420, and is used to detect the gas temperature of the air outlet 420; the second temperature sensor is provided on the inner wall surface of the part of the compartment 100 corresponding to the air supply duct 400, and is used to detect the temperature of the inner wall surface; the first temperature sensor, the second temperature sensor and the fan 500 are respectively connected to the controller, and the controller is used to adjust the speed of the fan according to the detection temperature of the first temperature sensor and the detection temperature of the second temperature sensor. As set above, the speed of the fan 500 can be adjusted accordingly according to the gas temperature of the air outlet 420 and the wall temperature of the compartment 100, so as to achieve higher precision control of the temperature of the second compartment 120. The specific control method can be set as needed.

[0065] Further, the controller includes a receiving unit, a calculating unit and an executing unit, wherein the calculating unit is used to receive the gas temperature information of the air outlet 420 detected by the first temperature sensor and the temperature information of the inner wall surface of the compartment 100 detected by the second temperature sensor; the calculating unit is used to calculate the difference between the real-time temperature of the gas at the air outlet 420 and the real-time temperature of the inner wall surface of the compartment 100; and the executing unit is used to adjust the speed of the fan 500 according to the magnitude relationship between the difference and the preset value. The greater the difference between the gas temperature at the air outlet 420 and the temperature of the inner wall surface of the compartment 100, the higher the heating efficiency of the inner wall surface on the gas in the air supply duct 400, and the lower the speed of the fan 500, the more sufficient the gas is to exchange heat with the inner wall surface.

[0066] In some embodiments, the part of the body 100 located in the second compartment 120 is provided with at least one heat-conducting component, one end of the heat-conducting component extends to the air supply duct 400, and the other end extends to the surface of the body 100. In this embodiment, the heat-conducting component is provided to conduct the temperature outside the body 100 to the air supply duct 400, so as to heat the gas in the air supply duct 400. Since the body 100 is usually made of heat-insulating materials, the temperature of the inner wall surface of the body 100 is lower than the outside temperature. By providing the heat-conducting component, the outside heat can be fully utilized to further improve the air outlet temperature of the air supply duct 400. In addition, the heat-conducting component is provided in the second compartment 120, that is, only the gas in the air supply duct 400 located in the second compartment 120 is heated to reduce the temperature impact on the first compartment 110. Specifically, the heat-conducting component is provided on the top wall 140 of the body 100. The other end of the heat-conducting component specifically extends in a direction away from the air supply duct 400 to increase the heat exchange area with the outside environment and improve the heating efficiency. It is understandable that insulation material can be provided between the heat-conducting component and the inner wall of the compartment 100 and sealed. When the compartment 100 itself includes an insulation layer 170 , the heat-conducting component is sealed to the compartment 100 to ensure the overall insulation performance of the compartment 100 .

[0067] In some embodiments, a heat-conducting material layer is provided on the outer surface of the body 100, and the heat-conducting material layer is in contact with the heat-conducting component. By providing the heat-conducting material layer, a heat-conducting effect is achieved, so that the heat absorption rate of the heat-conducting component is higher. Since the body 100 itself usually has a heat-insulating layer 170, the heat-conducting material layer does not affect the overall heat-insulating performance of the body 100.

[0068] In some embodiments, a heat-collecting material layer is provided on the outer surface of the body 100, and the heat-collecting material layer is in contact with the heat-conducting component. By providing the heat-collecting material layer, a heat-collecting effect is achieved, so that the heat absorption rate of the heat-conducting component is higher. Since the body 100 itself usually has a heat-insulating layer 170, the heat-collecting material layer does not affect the overall heat-insulating performance of the body 100.

[0069] In some embodiments, the fan 500 is disposed at the air inlet 410. It is understandable that the fan 500 being disposed at the air inlet 410 includes both the fan 500 being disposed inside the air inlet 410 and the fan 500 being disposed adjacent to the air inlet 410. The fan 500 being disposed at the air inlet 410 is also convenient for arranging the cables of the fan 500 and making the air supply more uniform. Specifically, the fan 500 is a stepless speed regulating fan 500, which can adjust the wind speed according to the temperature of the second compartment 120, enrich the application environment of the unit, and make the temperature control system more efficient and energy-saving.

[0070] Based on the cold chain transport compartment provided in the above embodiments, the present invention further provides a cold chain transport tool, which includes any one of the cold chain transport compartments in the above embodiments. Since the cold chain transport tool adopts the cold chain transport compartment in the above embodiments, please refer to the above embodiments for the beneficial effects of the cold chain transport tool.

[0071] 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.

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

Claims

1. A cold chain transport compartment, characterized in that: include: A box body (100), wherein a first compartment (110) and a second compartment (120) are provided in the box body (100), and the operating temperature of the first compartment (110) is lower than the operating temperature of the second compartment (120); A refrigeration device (200), disposed in the compartment (100), and used for adjusting the temperature in the first compartment (110); an air duct partition (300), wherein a portion of the air duct partition (300) is disposed in the first compartment (110) and a portion of the air duct partition (300) is disposed in the second compartment (120), and the air duct partition (300) is connected to the compartment (100) and encloses an air supply duct (400) with the compartment (100), a portion of the compartment (100) corresponding to the air supply duct (400) faces the gas in the air supply duct (400) for contact heat exchange, and an air inlet (410) is disposed on the air supply duct (400) in communication with the first compartment (110), and an air outlet (420) is disposed on the air supply duct (400) in communication with the second compartment (120); The fan (500) is disposed in the compartment (100) and is used to guide the gas in the first compartment (110) into the air supply duct (400) and then into the second compartment (120).

2. The cold chain transport compartment according to claim 1, characterized in that: One side edge of the air duct partition (300) is connected to the top wall (140) of the body (100), and the other side edge is connected to the top wall (140) of the body (100), the side wall (150) of the body (100), or one of the connection points between the top wall (140) and the side wall (150).

3. The cold chain transport compartment according to claim 1, characterized in that: The car body (100) comprises an outer skin (160), an inner skin (180) and a heat-insulating layer (170) arranged between the outer skin (160) and the inner skin (180), wherein the outer skin (160) comprises glass fiber reinforced plastic or aluminum, the heat-insulating layer (170) comprises extruded polystyrene foam plastic or polyurethane rigid foam plastic, and the inner skin (180) comprises glass fiber reinforced plastic or aluminum.

4. The cold chain transport compartment according to any one of claims 1 to 3, characterized in that: The air duct partition (300) includes a first air duct partition (310) and a second air duct partition (320), wherein the first air duct partition (310) is connected to the compartment (100), and the second air duct partition (320) is arranged in the space enclosed by the first air duct partition (310) and the compartment (100), and divides the space into a return air duct (600) and the supply air duct (400), wherein the return air duct (600) is connected to the second compartment (120) and is provided with a return air inlet (610), and is connected to the first compartment (110) and is provided with a return air outlet (620), and the second air duct partition (320) is a heat conductive member.

5. The cold chain transport compartment according to claim 4, characterized in that: The first air duct partition (310) is plate-shaped, and one edge of the first air duct partition (310) is connected to the top wall (140) of the compartment (100), and the other edge of the second air duct partition (320) is connected to the first air duct partition (310), and the other edge of the second air duct partition (320) is connected to the top wall (140), the side wall (150), or one of the connection points between the top wall (140) and the side wall (150).

6. The cold chain transport compartment according to claim 4, characterized in that: The first air duct partition (310) is L-shaped, the end of the L-shaped vertical section (311) is connected to the top wall (140) of the compartment (100), the end of the horizontal section (312) is connected to the side wall (150) of the compartment (100), and one side edge of the second air duct partition (320) is connected to the horizontal section (312), and the other side edge is connected to the top wall (140).

7. The cold chain transport compartment according to any one of claims 1 to 3, characterized in that: Also includes: a first temperature sensor, disposed at the air outlet (420), and used to detect the temperature of the gas at the air outlet (420); A second temperature sensor is disposed on the inner wall surface of the compartment (100) corresponding to the air supply duct (400), and is used to detect the temperature of the inner wall surface; A controller, wherein the first temperature sensor, the second temperature sensor and the fan (500) are respectively connected to the controller, and the controller is used to adjust the rotation speed of the fan (500) according to the detection temperature of the first temperature sensor and the detection temperature of the second temperature sensor.

8. The cold chain transport compartment according to any one of claims 1 to 3, characterized in that: The portion of the body (100) located in the second compartment (120) is provided with at least one heat-conducting component, one end of the heat-conducting component extends to the air supply duct (400), and the other end extends to the outer surface of the body (100).

9. The cold chain transport compartment according to claim 8, characterized in that: The outer surface of the compartment (100) is provided with a heat-conducting material layer, and the heat-conducting material layer is in contact with the heat-conducting component.

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

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