Cooling device and cold-chain logistics system

Abstract

The embodiment of the utility model relates to the technical field of cold-chain logistics, and particularly discloses a cooling device and a cold-chain logistics system.The cooling device comprises a storage mechanism, a connecting pipe and a negative pressure mechanism, the storage mechanism is provided with a containing space and an air inlet, the air inlet is communicated with the containing space, and the containing space is used for containing objects to be cooled; the air inlet is separably communicated with a cold source, the storage mechanism is foldable, the containing space changes along with folding of the storage mechanism, one end of the connecting pipe is connected with the storage mechanism, the other end of the connecting pipe is provided with an air outlet, the air outlet is communicated with the containing space, and the negative pressure mechanism is separably connected to the air outlet. The negative pressure mechanism is used for driving a cooling medium of the cold source to sequentially flow through the air inlet, the containing space and the air outlet to form cooling airflow so as to cool the to-be-cooled object located in the containing space. In this way, the cooling device is easy to transport and install, and the construction and application cost in different scenes is reduced.

Description

Technical Field

[0001] The embodiments of the present utility model relate to the technical field of cold chain logistics, and in particular to a cooling device and a cold chain logistics system. Background Art

[0002] Due to the accumulation of latent heat caused by field heat effects and the combined accumulation of heat generated by respiration, agricultural products such as fruits and vegetables consume nutrients and lose water after being picked, leading to wilting, discoloration, softening, a reduction in vitamins, and even spoilage. This is especially true for fruits and vegetables that have significant respiration, are perishable, and are harvested in hot environments. Therefore, rapid and effective cooling of freshly picked fruits and vegetables is a key step in ensuring their quality, extending their shelf life, and increasing their value. Currently, the main method for processing freshly picked fruits and vegetables is rapid pre-cooling, using container-based or fixed-building pre-cooling facilities.

[0003] In the process of implementing the embodiments of the present utility model, the inventors found that container-type or fixed-building pre-cooling facilities are usually large in size and occupy a large area. Not only are the construction and maintenance costs high, but they also lack flexibility in use and are difficult to meet the pre-cooling needs in different scenarios and scales. Utility Model Content

[0004] In view of the above problems, the embodiments of the present invention provide a cooling device and a cold chain logistics system, which overcome the above problems or at least partially solve the above problems.

[0005] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a cooling device, including a storage mechanism, a connecting pipe and a negative pressure mechanism, the storage mechanism is provided with a receiving space and an air inlet, the air inlet is connected to the receiving space, the receiving space is used to receive the object to be cooled, the air inlet is detachably connected to the cold source, the storage mechanism is foldable, and the receiving space changes with the folding of the storage mechanism, one end of the connecting pipe is connected to the storage mechanism, and the other end of the connecting pipe is provided with an air outlet, the air outlet is connected to the receiving space, the negative pressure mechanism is detachably connected to the air outlet, and the negative pressure mechanism is used to drive the cooling medium of the cold source to flow through the air inlet, the receiving space and the air outlet in sequence to form a cooling airflow to cool the object to be cooled located in the receiving space.

[0006] Optionally, the storage mechanism includes a foldable frame and a covering film, the covering film covers the foldable frame to form the receiving space, the covering film includes a top film and a side membrane assembly, the side membrane assembly is arranged around the edge of the top membrane, one side of the side membrane assembly is connected to the connecting pipe, and the air inlet is arranged on the other side of the side membrane assembly.

[0007] Optionally, the side membrane assembly includes a first side membrane, a second side membrane, a third side membrane and a fourth side membrane, the first side membrane, the second side membrane, the third side membrane and the fourth side membrane are respectively connected to the four edges of the top membrane, the side edges of the first side membrane, the second side membrane, the third side membrane and the fourth side membrane are connected end to end in sequence, the top membrane, the first side membrane, the second side membrane, the third side membrane and the fourth side membrane jointly cover the foldable frame, the first side membrane is connected to the connecting tube, and the air inlet is arranged on the third side membrane.

[0008] Optionally, the covering film further comprises a skirt curtain, which is arranged at one end of the side film assembly away from the top film, and the skirt curtain is used to abut against the parking plane of the storage mechanism to close the receiving space.

[0009] Optionally, the third side membrane includes two side edges and a top edge, one of the side edges is connected to the second side membrane, the other side edge is connected to the fourth side membrane, and the top edge is connected to the top membrane, at least one of the two side edges is detachable, and / or the top edge is detachable.

[0010] Optionally, the foldable frame includes at least two upright pole frames and at least one connecting rod, the at least two upright pole frames are spaced apart, and any two adjacent upright pole frames are respectively connected to both ends of at least one connecting rod, wherein the connecting rod can be contracted and expanded, and / or the connecting rod and the upright pole frames are detachably connected.

[0011] Optionally, the foldable frame further includes a plurality of first rollers, wherein the first rollers are arranged at an end of the vertical pole frame away from the top film, and each vertical pole frame is provided with at least one first roller.

[0012] Optionally, the negative pressure mechanism also includes a bracket, a fan and a second roller, the fan and the second roller are both arranged on the bracket, the bracket is connected to the connecting pipe, the fan is connected to one end of the connecting pipe, and the fan is used to drive the cooling medium of the cold source to flow through the air inlet, the receiving space and the air outlet in sequence to form the cooling airflow.

[0013] Optionally, the cooling device also includes a control mechanism and a sensing mechanism, the sensing mechanism includes one or more of a first sensor, a second sensor, a temperature sensor, a weight sensor and a pressure differential sensor, wherein the first sensor is used to sense the temperature and / or wind speed of the air inlet, the second sensor is used to sense the temperature and / or wind speed of the air outlet, the temperature sensor is used to sense the temperature of the object to be cooled, the weight sensor is used to sense the weight of the object to be cooled, and the pressure differential sensor is used to sense the internal and external air pressure difference of the containment space, the control mechanism is respectively connected to the sensing mechanism and the cold source, and the control mechanism is used to regulate the negative pressure mechanism and send control information to the cold source according to the sensing data of the sensing mechanism.

[0014] In order to solve the above technical problems, another technical solution adopted by the present invention is: to provide a cold chain logistics system, including a cold source and the above-mentioned cooling device, the cold source and the cooling device can be separated and connected, and the cold source is used to provide cooling medium for the cooling device.

[0015] The beneficial effect of the embodiment of the present invention is as follows: Different from the prior art, the embodiment of the present invention provides a cooling device and a cold chain logistics system, wherein the cooling device includes a storage mechanism, a connecting pipe and a negative pressure mechanism, wherein the storage mechanism is provided with a receiving space and an air inlet, the air inlet is connected to the receiving space, the receiving space is used to receive the object to be cooled, the air inlet is detachably connected to the cold source, the storage mechanism is foldable, and the receiving space changes with the folding of the storage mechanism, one end of the connecting pipe is connected to the storage mechanism, the other end of the connecting pipe is provided with an air outlet, the air outlet is connected to the receiving space, the negative pressure mechanism is detachably connected to the air outlet, the negative pressure mechanism is used to drive the cooling medium of the cold source to flow through the air inlet, the receiving space and the air outlet in sequence to form a cooling airflow to cool the object to be cooled located in the receiving space. In the above manner, the negative pressure mechanism and the storage mechanism are detachably connected, and the storage mechanism is foldable, making the cooling device easy to transport and install, reducing the construction and application costs in different scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the drawings without paying any creative work.

[0017] Figure 1 It is a three-dimensional diagram of the cooling device provided by an embodiment of the utility model;

[0018] Figure 2 It is a side perspective view of a cooling device provided by an embodiment of the present utility model;

[0019] Figure 3 It is a top perspective view of the cooling device provided by an embodiment of the present utility model.

[0020] Description of reference numerals:

[0021] 1000. Cooling device; 1. Storage mechanism; 10. Accommodation space; 101. Air inlet; 11. Covering film; 111. Side film assembly; 1111. First side film; 1112. Second side film; 1113. Third side film; 1114. Fourth side film; 112. Top film; 113. Skirt curtain; 114. Binding belt; 12. Foldable frame; 121. Vertical pole rack; 1211. Vertical pole; 1212. Top pole; 122. Connecting rod; 123. First roller; 14. Shelf; 2. Connecting pipe; 20. Air outlet; 3. Negative pressure mechanism; 31. Bracket; 311. Flange; 32. Fan; 33. Second roller; 4. Sensing mechanism; 41. First sensor; 42. Second sensor; 43. Temperature sensor; 44. Humidity sensor; 45. Pressure difference sensor. DETAILED DESCRIPTION

[0022] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this specification are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used in this specification have the same meanings as those commonly understood by those skilled in the art to which this utility model belongs. The terms used in this specification and in the description of this utility model are only for the purpose of describing specific embodiments and are not intended to limit the utility model. The term "and / or" used in this specification includes any and all combinations of one or more of the relevant listed items.

[0024] See also Figures 1 to 3The cooling device 1000 includes a storage mechanism 1, a connecting pipe 2, a negative pressure mechanism 3, a sensing mechanism 4, and a control mechanism (not shown). The two ends of the connecting pipe 2 are respectively connected to the storage mechanism 1 and the negative pressure mechanism 3. The storage mechanism 1 is used to accommodate the object to be cooled. The negative pressure mechanism 3 and the cold source are detachably connected. The negative pressure mechanism 3 is used to drive the cooling medium of the cold source to flow through the interior of the storage mechanism 1 to form a cooling airflow. The sensing mechanism 4 is provided in the storage mechanism 1. The sensing mechanism 4 is used to sense information such as temperature, humidity, wind speed, and pressure in the storage mechanism 1. The control mechanism is respectively connected to the sensing mechanism 4 and the cold source for communication. The control mechanism is used to adjust the negative pressure mechanism 3 and send control information to the cold source based on the sensing data of the sensing mechanism 4.

[0025] It should be noted that the objects to be cooled may be agricultural products such as fruits and vegetables or other items that require a specific temperature and humidity environment to maintain their quality or activity.

[0026] For the above storage mechanism 1, please continue to refer to Figures 1 to 3 The storage mechanism 1 is provided with a receiving space 10 and an air inlet 101, and the air inlet 101 is connected to the receiving space 10. The storage mechanism 1 includes a covering film 11 and a foldable frame 12. The covering film 11 covers the foldable frame 12 to form the receiving space 10, and the receiving space 10 is used to receive the object to be cooled. One side of the covering film 11 is connected to the connecting pipe 2, and the air inlet 101 is provided on the other side of the covering film 11. The covering film 11 includes a top film 112, a side film assembly 111 and a skirt curtain 113. The side film assembly 111 surrounds the edge of the top film 112. The top film 112 and the side film assembly 111 jointly cover the foldable frame 12. The skirt curtain 113 is provided at one end of the side film assembly 111 away from the top film 112. The skirt curtain 113 is used to abut against the parking plane of the storage mechanism 1 to close the bottom surface of the receiving space 10.

[0027] It is understood that in some embodiments, the connection between the skirt curtain 113 and the docking surface is direct contact. When the negative pressure mechanism 3 is activated to generate a negative pressure environment in the receiving space 10, the skirt curtain 113 will be tightly adsorbed on the docking surface under the action of the internal and external pressure difference, forming an effective airtight seal. This not only prevents the intrusion of external impurities or hot air, but also ensures the efficient circulation of cooling air within the receiving space 10. In other embodiments, the skirt curtain 113 is detachably connected to the docking surface by means of a zipper, Velcro, or magnetic fixation. When a zipper is used for fixing, the skirt curtain 113 and the edge of the docking plane are equipped with matching zippers, which can be tightly closed after being pulled together; when Velcro is used for fixing, the edge of the skirt curtain 113 and the corresponding positions of the docking plane are respectively provided with the hook surface and the fleece surface of the Velcro, and the two can be fitted together to achieve quick and firm fixation; when magnetic fixation is used, a magnetic strip is built into the edge of the skirt curtain 113, and a magnetic material or metal sheet that is attracted to it is installed on the docking plane, and the skirt curtain 113 is adsorbed on the docking plane by magnetic force.

[0028] It should be noted that the parking surface can be the ground or other flat and stable supporting surfaces, such as shelves, platforms or special parking racks.

[0029] Furthermore, the side membrane assembly 111 includes a first side membrane 1111, a second side membrane 1112, a third side membrane 1113, and a fourth side membrane 1114. The sides of the first side membrane 1111, the second side membrane 1112, the third side membrane 1113, and the fourth side membrane 1114 are connected end to end, and the first side membrane 1111, the second side membrane 1112, the third side membrane 1113, and the fourth side membrane 1114 are respectively connected to the four edges of the top membrane 112. The top membrane 112, the first side membrane 1111, the second side membrane 1112, the third side membrane 1113, and the fourth side membrane 1114 collectively cover the foldable frame 12. The air inlet 101 is provided in the third side membrane 1113, and the first side membrane 1111 is connected to the connecting pipe 2.

[0030] The third side film 1113 includes two side edges and a top edge. One side edge is connected to the second side film 1112, the other side edge is connected to the fourth side film 1114, and the top edge is connected to the top film 112. At least one of the two side edges of the third side film 1113 is detachable, and / or the top edge is detachable, so that the third side film 1113 can be separated from the adjacent side film or top film 112, forming an opening to facilitate the insertion and removal of the object to be cooled from the receiving space 10. The connection method of at least one side of the third side film 1113 to the adjacent second side film 1112, fourth side film 1114, or top film 112 includes, but is not limited to, a zipper connection, a Velcro connection, or a magnetic connection.

[0031] In some embodiments, the covering film 11 also includes a bottom film, which is arranged opposite to the top film 112, and the first side film 1111, the second side film 1112, the third side film 1113 and the fourth side film 1114 are respectively connected to the four edges of the bottom film, and the bottom film is detachably connected to the skirt curtain 113. The bottom film covers the bottom surface of the foldable frame 12 or passes through the foldable frame 12 to close the bottom surface of the receiving space 10.

[0032] It should be noted that the covering film 11 can be made of one or more flexible materials including but not limited to Oxford cloth, woven cloth, composite film material, fiber woven cloth, etc.

[0033] See also Figure 2 The foldable frame 12 includes at least two uprights 121, at least one connecting rod 122, and a plurality of first rollers 123. The at least two uprights 121 are spaced apart, and any two adjacent uprights 121 are connected to both ends of at least one connecting rod 122. The first rollers 123 are disposed at the ends of the uprights 121 away from the top film 112. Each upright 121 is provided with at least one first roller 123. The provision of the first rollers 123 enables the storage mechanism 1 to be easily moved on the docking surface, facilitating position adjustment or transportation.

[0034] Furthermore, the vertical pole frame 121 includes vertical poles 1211 and top poles 1212. The vertical poles 1211 are vertically connected to the ends of the top poles 1212. A first roller 123 is fixedly disposed at one end of the vertical poles 1211 away from the top poles 1212. The first roller 123 is fixed to the vertical poles 1211 by screwing or welding. The two ends of the connecting rod 122 are connected between two vertical poles 1211 adjacent to each other along the first direction x. The top pole 1212 and the vertical poles 1211 are detachably connected by bolts, snaps, or plug-ins to facilitate assembly and disassembly of the storage mechanism 1. One end of the connecting rod 122 is fixed to one vertical pole 1211, and the other end of the connecting rod 122 is slidably disposed on the other vertical pole 1211. When one vertical pole 1211 moves relative to the other vertical pole 1211, the connecting rod 122 contracts or expands accordingly, thereby achieving the folding or expansion of adjacent vertical pole frames 121, further improving the spatial flexibility of the storage mechanism 1. The connecting rod 122 is detachably or non-detachably connected to the vertical rod 1211. The connecting rod 122 can be composed of a single rod. The connecting rod 122 can be composed of two cross-arranged rods, and the intersection is connected by a hinge, a rotating shaft, or other means that allow relative rotation.

[0035] Preferably, the number of the vertical pole racks 121 is three, and the three vertical pole racks 121 are arranged in parallel and spaced apart along the first direction x.

[0036] It should be noted that the vertical rod 1211, the top rod 1212, and the connecting rod 122 can all be made of one or more rigid materials, including but not limited to steel, aluminum alloy, magnesium alloy, high-strength composite materials, etc. The cross-sections of the vertical rod 1211, the top rod 1212, and the connecting rod 122 can be the same or different, and the cross-sections can be square, circular, or other shapes.

[0037] It is understood that the connecting rod 122 of the storage mechanism 1 can be retracted and expanded, and the vertical rod 1211 and the top rod 1212 are detachably connected, allowing the storage mechanism 1 to be folded when not in use, reducing space usage and facilitating storage and transportation. At the same time, when needed, the storage mechanism 1 can be easily unfolded, and the size of the storage space 10 can be adjusted to accommodate objects of different sizes to be cooled by retracting or expanding the connecting rod 122, ensuring full utilization of the storage space 10. The covering film 11 is made of a flexible material and can be separated from the foldable frame 12, further enhancing the flexibility and convenience of the storage mechanism 1. When not in use, the covering film 11 can be easily removed from the foldable frame 12 for storage or separate cleaning and replacement.

[0038] In some embodiments, a plurality of binding straps 114 are provided on the inner side of the covering film 11. The binding straps 114 can be provided on adjacent edges of the side film components or at other locations on the inner side of the covering film 11. The binding straps 114 are used to bind and secure the covering film 11 to the foldable frame 12 to prevent the covering film 11 from shifting or falling off during use of the storage mechanism 1.

[0039] In some embodiments, the storage mechanism 1 further includes at least one shelf 14 , which is disposed in the receiving space 10 and is used to carry objects to be cooled.

[0040] For the above connecting pipe 2, see Figure 3 One end of the connecting tube 2 is connected to the first side membrane 1111, and the other end of the connecting tube 2 is detachably connected to the negative pressure mechanism 3. The other end of the connecting tube 2 is provided with an air outlet 20, which is connected to the negative pressure mechanism 3 and the receiving space 10 respectively. The connecting tube 2 can be integrally formed with the covering membrane 11 or detachably connected. The connecting tube 2 is made of the same or different flexible material as the covering membrane 11.

[0041] It should be noted that the first direction x refers to the direction from the air inlet 101 to the air outlet 20 , that is, the flow direction of the cooling airflow.

[0042] For the above negative pressure mechanism 3, please refer to Figure 1 and Figure 2The negative pressure mechanism 3 includes a bracket 31, a fan 32, and a second roller 33. The fan 32 and the second roller 33 are both mounted on the bracket 31. The bracket 31 is provided with a flange 311. The flange 311 is arranged around the fan 312 and is used to connect to the connecting pipe 2. The other end of the connecting pipe 2 can be fixed to the flange 311 via a pipe clamp. The fan 32 is connected to one end of the connecting pipe 2. The fan 32 is used to drive the cooling medium of the cold source into the receiving space 10 through the air inlet 101 and out through the air outlet 20, forming a cooling airflow. The pressure gradient generated at both ends of the object to be cooled in the receiving space 10 due to the flow resistance effect promotes the cooling airflow to implement forced convection heat exchange within the receiving space 10, thereby cooling the object to be cooled.

[0043] It should be noted that the structure and shape of bracket 31 are specifically configured according to actual needs and can be an open frame structure or a sealed shell structure, and can be a rectangular parallelepiped, polygonal rhombus, ellipsoid, etc. When bracket 31 is a sealed shell structure, fan 32 is located in the shell, and the shell portions at both ends of fan 32 can be opened and closed. When fan 32 is started, the shells at both ends of fan 32 open to form airflow. When fan 32 stops working, the shells at both ends of fan 32 close to protect fan 32 from external environmental influences. Bracket 31 is made of one or more rigid materials including but not limited to steel, aluminum alloy, zinc alloy, magnesium alloy, high-strength plastic, and fiber composite materials.

[0044] It is understood that in some embodiments, the expanded size of the storage mechanism 1 can be set to different sizes according to the specific application scenario and the scale of the object to be cooled, and the air volume of the fan 32 can range from 10000m 3 / h to 40000m 3 / h, the preset negative pressure value of the storage space 10 can reach -5Pa to -20Pa. Preferably, the unfolded size of the storage mechanism 1 is 2500*1400*1800mm, and the air volume of the fan 32 is 30000m 3 / h, the preset negative pressure value in the receiving space 10 is set to -5Pa, and, in this preferred example, the cooling device 1000 can reduce the object to be cooled in the receiving space 10 from room temperature to a preset cooling temperature (for example, 5°C) within 50-110 minutes, thereby achieving rapid cooling of the object to be cooled to effectively maintain its freshness and quality.

[0045] For the above-mentioned induction mechanism 4, please refer to Figure 3The sensing mechanism 4 includes a first sensor 41, a second sensor 42, a temperature sensor 43, a humidity sensor 44 and a pressure difference sensor 45. The first sensor 41 is arranged at the air inlet for sensing the temperature and wind speed of the air inlet. The second sensor 42 is arranged at the air outlet for sensing the temperature and wind speed of the air outlet. The temperature sensor 43 is arranged on at least one shelf 14, or is arranged between the objects to be cooled on the shelf 14, or is at least partially inserted into the interior of the objects to be cooled. The temperature sensor 43 is used to sense the temperature of the objects to be pre-cooled. The humidity sensor 44 is arranged in the receiving space 10 for sensing the humidity of the receiving space 10. The pressure difference sensor 45 is arranged in the storage mechanism 1 for sensing the air pressure inside and outside the storage mechanism 1 and the air pressure difference.

[0046] In some embodiments, the sensing mechanism 4 also includes a weight sensor, which is arranged on the shelf 14 and is used to sense the weight of the object to be cooled in real time and transmit the weight data to the control mechanism, so that the control mechanism can judge the water loss of the object to be cooled based on the weight information of the object to be cooled and the weight change of the object to be cooled, and then adjust the cooling plan to optimize the cooling process.

[0047] It should be noted that the sensing mechanism 4 is not limited to the above structure. The sensing mechanism 4 may include one or more of the above sensors, and may also include a greater number or different types of sensors, and may be arranged at different positions of the storage mechanism 1 to adapt to different monitoring needs.

[0048] The control mechanism includes a cooling scheme processing module and a negative pressure control module. The cooling scheme processing module is connected to the cooling source control module and the cooling source, respectively. The cooling scheme processing module is used to determine whether the data information collected by the sensing mechanism 4 meets the preset cooling scheme requirements, and send corresponding control instructions to the negative pressure control module and the cooling source according to the preset cooling management plan. The control instructions include instructions for adjusting the speed of the fan 32 of the negative pressure mechanism 3, instructions for adjusting the temperature, humidity or wind speed of the cooling source, and instructions for stopping operation after the temperature of the object to be cooled reaches a preset temperature. The negative pressure control module is arranged on the bracket 31 and is connected to the fan 32. After receiving the instructions from the cooling scheme processing module, the negative pressure control module controls the operating state of the fan 32, including starting, stopping, and adjusting the speed, so as to control the flow rate and speed of the cooling airflow.

[0049] It should be noted that the cold source provides cooling medium for cooling device 1000. The cold source can be a cold storage or a mobile refrigeration device, and the cooling medium can be the cold air in the cold storage or the cold air generated by the mobile refrigeration device. The cold source is provided with a cold source control module and is in communication with the control mechanism through the cold source control module. In response to control information from the control mechanism, the cold source adjusts parameters such as the temperature, humidity, or wind speed of the cooling medium it outputs.

[0050] It is understandable that when the cold source is a cold storage, the cooling scheme processing module is connected to the cold storage control module, the cooling device 1000 is arranged in the cold storage, the air inlet 101 of the storage mechanism 1 is connected to the cold air delivery pipeline of the cold storage, or the air inlet 101 of the storage mechanism 1 is directly exposed to the cold storage, and the fan 32 can drive the cold air in the cold storage to enter the receiving space 10 through the air inlet 101 and flow out from the air outlet 20 to form a cooling airflow. Through the coordinated work of the control module and the cold storage control module, the large environment temperature, humidity, etc. in the cold storage, as well as the temperature, humidity, wind speed, etc. of the small environment of the receiving space 10 can be controlled to achieve rapid cooling of the object to be cooled in the storage mechanism 1, and the cooling is terminated in time after the sensing mechanism 4 senses that the temperature of the object to be cooled reaches the set temperature value, thereby saving energy and completing efficient cooling.

[0051] In an embodiment of the present invention, a cooling device 1000 includes a storage mechanism 1, a negative pressure mechanism 3, a sensing mechanism 4, and a control mechanism. The storage mechanism 1 is provided with an air inlet 101, a receiving space 10, and an air outlet 20, which are connected in sequence. The air inlet 101 is detachably connected to a cold source, the receiving space 10 is used to accommodate an object to be cooled, and the negative pressure mechanism 3 is detachably connected to the air outlet 20 via a connecting pipe 2. The negative pressure mechanism 3 is used to drive cold air from the cold source to flow through the air inlet 101, the receiving space 10, and the air outlet 20 in sequence, forming a cooling airflow to cool the object to be cooled. The sensing mechanism 4 is used to sense information such as temperature, humidity, and wind speed in the receiving space 10. The control mechanism is used to regulate the negative pressure mechanism 3 based on the data sensed by the sensing mechanism 4 and to send control instructions to the cold source. The storage structure is foldable, and the receiving space 10 changes as the storage space folds. The sensing mechanism 4 is provided in the receiving space 10. The storage mechanism 1 includes a covering film 11, a foldable frame 12, and a connecting tube 2. The covering film 11 covers the foldable frame 12 to form a storage space 10. The connecting tube 2 connects the covering film 11 and the negative pressure mechanism 3. The foldable frame 12 includes at least two upright poles 121, at least one connecting rod 122, and a plurality of first rollers 123. The upright poles 1211 include detachably connected upright poles 1211 and top poles 1212. The upright poles 1211 are respectively connected to the ends of the top pole 1212. The rollers are fixed to the ends of the upright poles 1211 away from the top pole 1212. The connecting rod 122 is foldable, and the ends of the connecting rod 122 are respectively connected to two adjacent upright poles 1211. The connecting rod 122 and the upright poles 1211 are detachably connected or non-detachably connected. Through the above-mentioned configuration, the foldable storage mechanism 1 and the detachable negative pressure mechanism 3 make the cooling device 1000 not only easy to transport and install, but also greatly improve its flexibility and adaptability in different application scenarios. Whether in the fields, logistics centers or supermarket warehouses, users can quickly deploy and start cooling operations according to actual needs, effectively reducing construction and operating costs.

[0052] The present invention also provides an embodiment of a cold chain logistics system, which includes the above-mentioned cold source and cooling device 1000. The structure and function of the cooling device 1000 can be found in the above-mentioned embodiment and will not be described in detail here.

[0053] It can be understood that in the cold chain logistics system, the cooling device 1000 can be used as a pre-cooling device to quickly and effectively cool down the freshly picked fruits, vegetables and other agricultural and sideline products at the starting end of the cold chain logistics system to ensure their quality and extend their shelf life; the cooling device 1000 can also be used as a mid-way supply or adjustment device to adjust the temperature, humidity and other environmental parameters of the goods in transit during the cold chain transportation process to ensure that the goods are transported in the best environment and further ensure the quality of the goods; at the same time, the cooling device 1000 can also be used as a terminal storage or display device to provide a suitable storage environment for the goods at the sales point or terminal warehouse, extend their shelf life and enhance the value of the goods.

[0054] In the embodiment of the present invention, the high flexibility and adaptability of the cooling device 1000 not only reduces the construction and operation costs in different application scenarios, but also greatly improves the overall efficiency and reliability of the cold chain logistics system.

[0055] It should be noted that the preferred embodiments of the present invention are given in the specification and drawings of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. These embodiments do not serve as additional limitations on the content of the present invention. The purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. In addition, the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, which are all considered to be within the scope of the description of the present invention; further, it is obvious to those skilled in the art that improvements or changes can be made based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A cooling device, characterized in that: include: The storage mechanism is provided with a receiving space and an air inlet, the air inlet is connected to the receiving space, the receiving space is used to receive the object to be cooled, the air inlet is detachably connected to a cooling source, the storage mechanism is foldable, and the receiving space changes as the storage mechanism is folded; a connecting pipe, one end of which is connected to the storage mechanism, and the other end of which is provided with an air outlet, the air outlet being in communication with the receiving space; The negative pressure mechanism is detachably connected to the air outlet, and is used to drive the cooling medium of the cold source to flow through the air inlet, the receiving space and the air outlet in sequence to form a cooling airflow to cool the object to be cooled in the receiving space.

2. The cooling device according to claim 1, characterized in that The storage mechanism includes a foldable frame and a covering film, wherein the covering film covers the foldable frame to form the receiving space; The covering film includes a top film and a side film assembly. The side film assembly is arranged around the edge of the top film. One side of the side film assembly is connected to the connecting pipe, and the air inlet is arranged on the other side of the side film assembly.

3. The cooling device according to claim 2, characterized in that , The side film assembly includes a first side film, a second side film, a third side film and a fourth side film, wherein the first side film, the second side film, the third side film and the fourth side film are respectively connected to the four edges of the top film, and the side edges of the first side film, the second side film, the third side film and the fourth side film are connected end to end in sequence, and the top film, the first side film, the second side film, the third side film and the fourth side film jointly cover the foldable frame; The first side membrane is connected to the connecting pipe, and the air inlet is provided on the third side membrane.

4. The cooling device according to claim 2, characterized in that , The covering film further comprises a skirt curtain, which is arranged at one end of the side film assembly away from the top film, and the skirt curtain is used to abut against the parking plane of the storage mechanism to close the receiving space.

5. The cooling device according to claim 3, characterized in that The third side membrane includes two side edges and a top edge, one side edge is connected to the second side membrane, the other side edge is connected to the fourth side membrane, and the top edge is connected to the top membrane; At least one of the two side edges is detachable, and / or the top edge is detachable.

6. The cooling device according to claim 2, characterized in that The foldable frame includes at least two upright poles and at least one connecting rod, wherein the at least two upright poles are spaced apart, and any two adjacent upright poles are respectively connected to two ends of at least one connecting rod; The connecting rod can be retracted and expanded, and / or the connecting rod and the vertical pole frame can be detachably connected.

7. The cooling device according to claim 6, characterized in that The foldable frame further includes a plurality of first rollers, wherein the first rollers are arranged at one end of the vertical pole frame away from the top film, and each vertical pole frame is provided with at least one first roller.

8. The cooling device according to claim 1, characterized in that The negative pressure mechanism also includes a bracket, a fan and a second roller. The fan and the second roller are both arranged on the bracket. The bracket is connected to the connecting pipe. The fan is connected to one end of the connecting pipe. The fan is used to drive the cooling medium of the cold source to flow through the air inlet, the receiving space and the air outlet in sequence to form the cooling airflow.

9. The cooling device according to any one of claims 1 to 8, characterized in that: The cooling device further includes a control mechanism and a sensing mechanism, the sensing mechanism including one or more of a first sensor, a second sensor, a temperature sensor, a weight sensor, and a pressure differential sensor, wherein the first sensor is used to sense the temperature and / or wind speed of the air inlet, the second sensor is used to sense the temperature and / or wind speed of the air outlet, the temperature sensor is used to sense the temperature of the object to be cooled, the weight sensor is used to sense the weight of the object to be cooled, and the pressure differential sensor is used to sense the pressure difference between the inside and outside of the receiving space; The control mechanism is connected to the sensing mechanism and the cold source respectively. The control mechanism is used to regulate the negative pressure mechanism and send control information to the cold source according to the sensing data of the sensing mechanism.

10. A cold chain logistics system, characterized in that: comprising a cold source and a cooling device as claimed in any one of claims 1 to 9, The cold source is detachably connected to the cooling device, and the cold source is used to provide a cooling medium for the cooling device.

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