Constant-temperature refrigerated transport case

Abstract

A constant-temperature refrigerated transport case relates to the technical field of biological sample cold chain transport and comprises a case body and a functional structure, the case body comprises a case body and a case cover, the case body is of a cuboid structure, a host mounting groove is formed in one side of the case body, fixing hooks are arranged on two sides of the host mounting groove, and carrying handles are arranged at two ends of the case body. A lifting handle is arranged at the top of the box cover, a fixing groove matched with the fixing hook is formed in one side, close to the fixing hook, of the box cover, and a plurality of hasps are arranged on four sides of the box body and the box cover; the functional structure comprises a base station and a temperature node, the base station is mounted in the host mounting groove, the temperature node is arranged in the box body, and a cold storage ice raft is arranged around the temperature node. Compared with the prior art, the thermal management system has the advantages that the thermal management efficiency is remarkably improved, the cooling capacity loss is reduced compared with that of a traditional design, millisecond-level double alarming is achieved for overtemperature and illegal box opening, physical tampering prevention and behavior tracing are achieved, and safe transportation of high-biological-activity samples is comprehensively guaranteed.

Description

Technical Field

[0001] This application relates to the field of cold chain transportation technology for biological samples, and in particular to a constant temperature refrigerated transport box. Background Technology

[0002] Cold chain transportation technology has formed a relatively mature system in the fields of biological samples, medical supplies, and food preservation. Current mainstream solutions mainly rely on two technical routes: active refrigeration units and passive phase change materials. Active refrigeration achieves precise temperature control through compressor circulation, but it has inherent drawbacks such as high energy consumption, large equipment size, and poor shock resistance. Passive refrigerated boxes generally use refrigerants (such as PCM phase change materials) combined with polyurethane foam insulation layers. While they offer the advantage of lightweight structure, they still face the risk of thermal boundary failure during long-term transportation. In recent years, with the penetration of IoT technology, some high-end refrigerated boxes have begun to integrate temperature recording and GPS positioning modules. However, these often use separate installations of temperature sensors and communication equipment, leading to data link delays, insufficient system compatibility, and vulnerability to connection failures due to vibration in complex transportation environments. It is worth noting that for the transportation of high-risk biological samples (such as sewage containing pathogens), existing equipment still has significant technical gaps in areas such as tamper-proof design, real-time status tracking, and emergency alarm mechanisms.

[0003] Existing technologies suffer from the following structural defects: First, the enclosure sealing relies heavily on a single rubber sealing strip, which is prone to permanent compression deformation under frequent opening and closing and temperature variations, causing cold energy to dissipate more rapidly through the enclosure seams (increasing the heat exchange coefficient by 30%-50%). Second, traditional cold storage ice blocks mostly adopt a flat plate stacking structure, with linear contact gaps between adjacent ice blocks, resulting in uneven distribution of refrigerant and weak heat conduction areas at the corners. Third, the security protection mechanism is weak; the mechanical locks and electronic monitoring systems are not linked, making it impossible to immediately block unauthorized opening and solidify evidence. Especially in scenarios such as wastewater epidemiological monitoring that require maintaining a strict temperature range of 2-8℃, these defects will directly lead to loss of sample activity and distortion of monitoring data.

[0004] In summary, existing cold chain transportation equipment has significant limitations in terms of sealing reliability, cold storage efficiency, and safety protection. Summary of the Invention

[0005] This application provides a constant temperature refrigerated transport box to solve the problems of existing cold chain transport equipment in terms of sealing reliability, cold storage efficiency, and safety protection.

[0006] This application provides a constant temperature refrigerated transport box, including a box body and a functional structure. The box body includes a box body and a box lid. The box body has a cuboid structure, with a main unit mounting groove on one side, fixing hooks on both sides of the main unit mounting groove, handling handles at both ends of the box body, a lifting handle on the top of the box lid, a fixing groove that cooperates with the fixing hooks on the side of the box lid, and several buckles on all four sides of the box body and the box lid. The functional structure includes a base station and a temperature node. The base station is installed in the host mounting slot, the temperature node is located inside the enclosure, and a cold storage ice bar is provided around the temperature node.

[0007] As an improvement, both the body and the lid of the box are hollow structures, and rope holes are provided at both ends of the body and the lid. The rope holes on the body and the lid are connected, and a steel cable passes through the rope holes. A combination lock is installed on the steel cable to lock it. In this way, a locking function is added to the box.

[0008] As an improvement, both the box body and the box lid are made of aerospace thermal insulation material by injection molding. The use of aerospace thermal insulation material can greatly ensure the stability of the internal temperature of the box and prevent it from changing too quickly, which is conducive to keeping it cold for a long time.

[0009] As an improvement, sealing strips are provided at the joints of the box body and the box cover. The sealing strips are installed on the box body and the box cover through sealing grooves. The sealing strips increase the airtightness of the box body, prevent hot air from entering, and facilitate heat exchange.

[0010] As an improvement, the buckles are symmetrically arranged on both sides of the fixing hook, and the fixing hook is symmetrically arranged on both sides of the main unit mounting groove. The buckles on the long and short sides of the box are symmetrically arranged. The symmetrical arrangement of the buckles can ensure that the force is even when the box cover and the box body are connected, which can further increase the sealing performance.

[0011] As an improvement, the cold storage ice pack has six pieces, which, when assembled, form a box-shaped structure that matches the internal storage space of the box. The cold storage ice packs abut against each other to form a box-shaped structure. Placing the sample inside the box-shaped structure can keep it cold while also reducing the internal space of the box and preventing the sample from tipping over.

[0012] As an improvement, the edges of the cold storage ice blocks are all 45° beveled, and each cold storage ice block is equipped with a liquid filling port. The beveled edges are to facilitate the docking of the cold storage ice blocks. When fully docked, the thickness of the ice at the corners is greater than the thickness of the cold storage ice block itself, preventing heat exchange from occurring at the corners. The liquid filling port allows the cold storage ice blocks to be reused, reducing the cost of use.

[0013] As an improvement, the base station is equipped with a display screen and control buttons. All information of the enclosure is displayed on the screen for easy inspection, and the functions of the base station and temperature node can also be adjusted.

[0014] As an improvement, the base station integrates a buzzer, unpacking detection, communication module and GPS. When unpacking or excessive temperature is detected, the buzzer vibrates to trigger an alarm. Unpacking detection prevents the box from being forced open during transportation, which could cause data inaccuracy. GPS sends the box location at regular intervals to record logistics evidence for easy verification.

[0015] As an improvement, the temperature node integrates buttons, a buzzer, and an indicator light. The temperature node is connected to the base station, and both the temperature node and the base station use USB for data export.

[0016] Compared with existing technologies, the advantages of this invention are as follows: Through the synergistic effect of an aerospace-grade thermal insulation material enclosure and a 45° angled interlocking cold storage ice pack, thermal management efficiency is significantly improved, and cold energy loss is reduced compared to traditional designs. Simultaneously, an integrated intelligent protection system is implemented, with the base station incorporating GPS / 4G / Hall sensors to achieve millisecond-level dual alarms for over-temperature and unauthorized opening, linked to temperature nodes. The innovative use of a steel cable perforated combination lock and electronic opening detection dual-factor authentication achieves physical anti-tampering and behavior traceability. In terms of engineering reliability, the silicone sealing strip nested in the sealing groove is IP67 certified, comprehensively ensuring the safe transportation of highly bioactive samples. Attached Figure Description

[0017] The accompanying drawings are provided to further understand the technical solutions of the present invention and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of the present invention and do not constitute a limitation on the technical solutions of the present invention.

[0018] Figure 1 A perspective view provided for an embodiment of this application; Figure 2 Structural schematic diagrams provided for embodiments of this application; Figure 3 A front view provided for an embodiment of this application; Figure 4 A cross-sectional view of section AA provided for an embodiment of this application; Figure 5 Internal structural diagram of the housing provided for embodiments of this application; Figure 6 A schematic diagram of a cold storage ice floe structure provided for an embodiment of this application.

[0019] The components include: 1. Enclosure; 11. Enclosure body; 111. Sealing strip; 112. Sealing groove; 12. Enclosure cover; 13. Main unit mounting groove; 14. Fixing hook; 15. Handling handle; 16. Lifting handle; 17. Fixing groove; 18. Hook and loop; 19. Rope hole; 2. Functional structure; 21. Base station; 211. Display screen; 212. Control button; 22. Temperature node; 23. Cold storage ice block; 231. Liquid filling port. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0022] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" and "linked" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, when describing pipelines, the terms "connected" and "linked" as used in this application have the meaning of establishing electrical connection. The specific meaning needs to be understood in conjunction with the context.

[0024] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0025] like Figures 1-6 A constant temperature refrigerated transport box includes a box body 1 and a functional structure 2. The box body 1 includes a box body 11 and a box cover 12. The box body 11 has a cuboid structure, with a main unit mounting groove 13 on one side, fixing hooks 14 on both sides of the main unit mounting groove 13, and handling handles 15 at both ends of the box body 11. The top of the box cover 12 has a lifting handle 16, and the side of the box cover 12 near the fixing hooks 14 has a fixing groove 17 that cooperates with it. The box body 11 and the box cover 12 have several buckles 18 on all four sides. The functional structure 2 includes a base station 21 and a temperature node 22. The base station 21 is installed in the host mounting slot 13, and the temperature node 22 is located inside the housing 11. A cold storage ice bar 23 is provided around the temperature node 22.

[0026] As an improvement, both the body 11 and the lid 12 are hollow structures. Both ends of the body 11 and the lid 12 are provided with rope holes 19. The rope holes 19 on the body 11 and the lid 12 are connected, and a steel cable passes through the rope holes 19. A combination lock is installed on the steel cable to lock it. In this way, a locking function is added to the body 1.

[0027] As an improvement, both the box body 11 and the box cover 12 are made of aerospace heat insulation material by injection molding. The use of aerospace heat insulation material can greatly ensure the temperature stability inside the box body 1, and prevent it from changing too quickly, which is conducive to keeping it cold for a long time.

[0028] As an improvement, a sealing strip 111 is provided at the joint between the box body 11 and the box cover 12. The sealing strip 111 is installed on the box body 11 and the box cover 12 through the sealing groove 112. The sealing strip 111 increases the airtightness of the box body 1, prevents outside hot air from entering, and facilitates heat exchange.

[0029] As an improvement, the buckles 18 are symmetrically arranged on both sides of the fixing hooks 14, and the fixing hooks 14 are symmetrically arranged on both sides of the main unit mounting groove 13. The buckles 18 on the long and short sides of the box body 1 are symmetrically arranged. The symmetrical arrangement of the buckles 18 can ensure that the force is even when the box cover 12 and the box body 11 are connected, which can further increase the sealing performance.

[0030] As an improvement, the cold storage ice pack 23 has six pieces, which, when assembled, form a box-shaped structure that matches the internal storage space of the box body 11. The cold storage ice packs 23 abut against each other to form a box-shaped structure. Placing the sample inside the box-shaped structure can keep it cold, and it also reduces the internal space of the box body 1 to prevent the sample from tipping over.

[0031] As an improvement, the edges of the cold storage ice stack 23 are all 45° beveled, and each cold storage ice stack 23 is provided with a liquid filling port 231. The beveled edge is to facilitate the docking of the cold storage ice stack 23. When fully docked, the thickness of the ice at the corner is greater than the thickness of the cold storage ice stack 23 itself, preventing heat exchange from occurring at the corner. The liquid filling port 231 allows the cold storage ice stack 23 to be reused, reducing the cost of use.

[0032] As an improvement, the base station 21 is equipped with a display screen 211 and control buttons 212. All information of the housing 1 is displayed on the display screen 211, which is convenient for inspection and can also adjust the functions of the base station 21 and the temperature node 22.

[0033] As an improvement, the base station 21 integrates a buzzer, unpacking detection, communication module and GPS. When unpacking or excessive temperature is detected, the buzzer vibrates to trigger an alarm. Unpacking detection prevents the box from being forced open during transportation, which could cause data inaccuracy. The GPS sends the box location at regular intervals to record logistics evidence for easy verification.

[0034] As an improvement, the temperature node 22 integrates a button, a buzzer and an indicator light. The temperature node 22 is connected to the base station 21, and both the temperature node 22 and the base station 21 use USB data export.

[0035] Example: Component information: Enclosure 1 System: The box body 11 is a rectangular modified PP injection molded part made of aviation thermal insulation material. Features: host mounting groove 13: 120×80×30mm groove, with fixing hooks 14 on both sides; handling handle 15: double-sided concave PP reinforcing rib structure; rope through hole 19: ϕ8mm through hole, one set at each end of the box body 11; sealing groove 112: U-shaped groove with a depth of 3mm, surrounding the box opening.

[0036] Box lid 12: The modified PP cover matches the box body 11. The lifting handle 16 is a folding aluminum alloy handle. The fixing groove 17 is a slot that interlocks with the fixing hook 14. The sealing strip 111 is made of silicone material with a cross section of 2×2.5mm and is embedded in the sealing groove 112. The buckle 18 is an aluminum four-way buckle with 4 long sides and 4 short sides.

[0037] Functional Structure 2 System: Base station model 21: BS-5000 embedded installation in host mounting slot 13; Integrated modules: Display screen 211 is an OLED-130 display screen; control buttons 212 include a three-button membrane key for start / stop / print / view; built-in 105dB buzzer; Hall sensor for unpacking detection; 4G communication module SIM7600CE; GPS / BeiDou dual-mode positioning.

[0038] Temperature node 22, model TM-N01, is fixed to the inner wall of enclosure 11; Functions: Temperature measurement accuracy: ±0.1℃-20℃~50℃, 433MHz communication connection to base station 21, button binding operation, independent buzzer alarm, and three-color indicator lights.

[0039] Model 23 Cold Storage Ice Block: BP-6B6 block combination; 45° beveled edge design, liquid inlet 231, self-sealing liquid injection valve, phase change temperature: 5℃±0.5℃.

[0040] Equipment Workflow Phase 1: Pre-cooling preparation 48 hours before transportation Cold storage ice block 23 treatment: Check the sealing of the liquid inlet 231, and freeze in an environment of -18℃ for ≥48 hours; Pre-cooling of box 1: Open the latch 18 to separate the lid 12 from the body 11, and place the body 11 and lid 12 in an environment of 2-8℃ for ≥1 hour.

[0041] Phase 2: System Startup and Sample Loading Base station 21 initialization: Press and hold the start / stop button in the control button 212 of base station 21 for 3 seconds. The OLED display 211 will light up. Base station 21 will automatically perform GPS positioning, 4G module network time synchronization, and initialize the Hall sensor to detect the closed state of the cover 12. Temperature node 22 binding: Press and hold the two buttons on the surface of temperature node 22 for 3 seconds to trigger a short beep from the buzzer. The display screen 211 of base station 21 will display "Node 1 binding successful" and the 433MHz communication channel will be established. Activation of the cold storage ice block 23: After freezing, the cold storage ice block 23 is moved to a room temperature environment of 25°C and left to stand for 25 minutes until the surface temperature rises to 5°C±1°C. Sample loading and sealing: Place the activated cold storage ice pack 23 into the box body 11: Assemble a rectangular frame with the 45° slanted sides tightly against the inner wall of the box body 11, and place the sewage sample bottle in the central area of ​​the frame; Close the lid 12: Align the fixing groove 17 of the lid 12 with the fixing hook 14 of the body 11 and press down. Fasten all the buckles in sequence. When you hear the mechanical lock click to confirm that it is in place, the steel rope combination lock passes through the rope hole 19 of the body 11 and the lid 12 and locks.

[0042] Phase 3: Monitoring the Transportation Process Temperature maintenance mechanism: The cold storage ice pack 23 maintains the internal environment of 2-8℃ through phase change heat absorption. The aerospace insulation material of the enclosure body 11 and the enclosure cover 12 blocks external heat conduction and keeps the temperature at -20℃ to 40℃ for ≥12 hours. Intelligent monitoring process: Temperature node 22 collects internal temperature data every minute and transmits it to base station 21 via 433MHz. Base station 21 performs the following actions: Under normal conditions (2-8℃): Temperature / GPS data is uploaded to the cloud platform via 4G every 5 minutes. In case of over-temperature, a buzzer alarm is triggered immediately and a red indicator light flashes. An alarm is uploaded every 2 minutes. In case of an opening event, the Hall sensor is triggered when the lid 12 is separated, and the timestamp of the unauthorized opening is recorded. The administrator receives real-time alarms and location information via a mobile APP.

[0043] Phase 4: Sample Delivery and Data Management Receive verification: Scan the QR code on the steel rope combination lock to unlock it, and check the transportation report on display screen 211 of base station 21, which includes the temperature fluctuation curve and unpacking record; Data export operation: USB export: Connect to a computer via Type-C interface to export a complete temperature log in CSV format; Print Report: Press and hold the control button 212 for 3 seconds to enter print mode, press the view button briefly to switch data channels, and press the print button briefly to output the selected node's transportation data; Equipment maintenance: Wipe the sealing strip 111 and the inner wall of the enclosure 11 with 75% ethanol, turn off the power to the base station 21, and store it in a dry environment.

[0044] Key performance implementation description Sealing guarantee: The sealing strip 111 is filled with the sealing groove 112 under pressure and has passed IP67 certification. It will not leak after being immersed in 1 meter of water for 30 minutes. Impact-resistant design: The rounded corner structure of the enclosure passed the GB / T4857.5 standard 90cm drop test without damage after free drop from all four sides and bottom edge; Binding reliability: Temperature node 22 and base station 21 adopt a two-way handshake protocol, and both ends of the buzzer alarm will sound when communication is interrupted; Long-term insulation verification: Under full configuration of the 23-cell ice storage unit, the ISTA's measured insulation time in summer operating conditions was 14.2 hours in the 2-8℃ temperature range.

[0045] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A constant temperature refrigerated transport box, comprising a box body (1) and a functional structure (2), characterized in that: The box (1) includes a box body (11) and a box cover (12). The box body (11) has a rectangular structure and a main unit mounting slot (13) on one side. The main unit mounting slot (13) has fixing hooks (14) on both sides. The box body (11) has handling handles (15) at both ends. The box cover (12) has a lifting handle (16) on the top. The box cover (12) has a fixing groove (17) that matches the fixing hook (14) on the side. The box body (11) and the box cover (12) have several buckles (18) on all four sides. The functional structure (2) includes a base station (21) and a temperature node (22). The base station (21) is installed in the host mounting slot (13), and the temperature node (22) is located inside the enclosure (11). A cold storage ice bar (23) is provided around the temperature node (22).

2. The constant temperature refrigerated transport box according to claim 1, characterized in that: The box body (11) and the box cover (12) are both hollow structures. Both ends of the box body (11) and the box cover (12) are provided with rope through holes (19), and the rope through holes (19) on the box body (11) and the box cover (12) are connected.

3. The constant temperature refrigerated transport box according to claim 1, characterized in that: Both the body (11) and the lid (12) are made of aerospace heat insulation material by injection molding.

4. The constant temperature refrigerated transport box according to claim 1, characterized in that: Sealing strips (111) are provided at the joint between the box body (11) and the box cover (12). The sealing strips (111) are installed on the box body (11) and the box cover (12) through the sealing groove (112).

5. The constant temperature refrigerated transport box according to claim 1, characterized in that: The buckles (18) are symmetrically arranged on both sides of the fixing hook (14), and the fixing hook (14) is symmetrically arranged on both sides of the main unit mounting slot (13). The buckles (18) on the long and short sides of the box (1) are symmetrically arranged.

6. The constant temperature refrigerated transport box according to claim 1, characterized in that: The cold storage ice stack (23) consists of six pieces, which, when assembled, form a box-shaped structure that matches the internal storage space of the box body (11).

7. The constant temperature refrigerated transport box according to claim 6, characterized in that: The edges of the cold storage ice stacks (23) are all 45° beveled, and each cold storage ice stack (23) is provided with a liquid filling port (231).

8. The constant temperature refrigerated transport box according to claim 1, characterized in that: The base station (21) is equipped with a display screen (211) and control buttons (212).

9. The constant temperature refrigerated transport box according to claim 1, characterized in that: The base station (21) integrates a buzzer, unpacking detection, communication module and GPS.

10. The constant temperature refrigerated transport box according to claim 1, characterized in that: The temperature node (22) integrates a button, a buzzer and an indicator light, and is connected to the base station (21).

Images