Multifunctional high-efficiency medicine constant-temperature box

Abstract

The invention belongs to the technical field of medicine storage and transportation equipment, and particularly relates to a multifunctional high-efficiency medicine constant-temperature box which comprises a box body and a temperature control system, and the interior of the box body is divided into an upper-layer temperature control area and a lower-layer temperature control area through a heat insulation partition plate; the box body is of a multi-layer nested type heat insulation structure and comprises an outer layer vacuum heat insulation layer, a middle layer phase change temperature adjusting layer and an inner layer storage cavity. The middle phase change temperature adjusting layer comprises a plurality of temperature adjusting modules which are fixedly connected with the storage cavity and have different melting points; the outer layer vacuum heat insulation layer comprises a reflecting film, the outer wall of the reflecting film is fixedly connected with a double-layer rectangular cavity, and a vacuum heat insulation plate is arranged in the double-layer rectangular cavity; the temperature control system comprises a refrigerating system, a power supply system and a control system, and the power supply system comprises a solar cell panel arranged at the top of the box body and a solid sulfide battery arranged at the bottom of the box body. The overall energy consumption is lower, and the storage and transportation reliability is higher.

Description

Technical Field

[0001] The invention belongs to the technical field of medicine storage and transportation equipment, and in particular relates to a multifunctional and high-performance medicine constant temperature box. Background Art

[0002] As a special biological product, the quality and effectiveness of vaccines are extremely sensitive to storage temperature. Most vaccines must be stored at 2-8°C, and some specialty vaccines have even stricter temperature requirements. Temperatures that are too high or too low can reduce the activity of vaccines and cause them to deteriorate, thus affecting their effectiveness in preventing disease.

[0003] At present, the common vaccine thermal boxes on the market mainly use traditional insulation materials such as polyurethane foam for insulation, and combine them with cold storage methods such as ice bags to maintain low temperatures. However, this method has many shortcomings: on the one hand, the insulation performance of a single layer of insulation material is limited, the heat loss is large, and the cold storage capacity of the ice bag is limited. During long-term transportation or high-temperature environments, it is difficult to continuously ensure that the temperature in the box is within the appropriate range; on the other hand, existing equipment can only provide a single temperature environment and cannot meet the storage needs of different types of vaccines at the same time. Summary of the Invention

[0004] In response to the technical problems existing in the background technology, the present invention provides a multifunctional and high-efficiency pharmaceutical constant temperature box, which is used to solve the problems of poor insulation performance of existing pharmaceutical constant temperature equipment, resulting in short cold storage time, high energy consumption, and single temperature zone limitation, thereby improving the versatility and high efficiency of pharmaceutical product storage and transportation.

[0005] To achieve the above objectives, the technical solution provided by the present invention is:

[0006] A multifunctional and high-performance pharmaceutical constant temperature box, comprising a box body and a temperature control system, characterized in that the interior of the box body is divided into an upper temperature control zone and a lower temperature control zone by an insulating partition;

[0007] The box body is a multi-layer nested insulation structure, including an outer vacuum insulation layer, a middle phase change temperature regulating layer and an inner storage cavity;

[0008] The middle phase change temperature control layer includes several temperature control modules with different melting points fixedly connected to the storage cavity. The temperature control module includes a heat conducting plate fixedly connected to the outer end of the storage cavity. The outer end of the heat conducting plate is fixedly connected to the temperature control chamber. The outer end of the temperature control chamber is provided with a heat insulating isolation layer. The outer wall of the heat insulating isolation layer is fixedly connected to several heat insulating columns. The ends of the heat insulating columns away from the heat insulating isolation layer are against the outer vacuum insulation layer, and an air gap is formed between the heat insulating isolation layer and the outer vacuum insulation layer.

[0009] The outer vacuum insulation layer includes a reflective film that is against the insulation column. The outer wall of the reflective film is fixedly connected with a double-layer rectangular cavity. A vacuum insulation panel is arranged in the double-layer rectangular cavity. The double-layer rectangular cavity has an opening and is equipped with a sealing component.

[0010] Optionally, insulation brackets are provided at the four corners of the double-layer rectangular cavity, and the insulation brackets are provided with a number of slots. Two layers of vacuum insulation panels are arranged in the double-layer rectangular cavity, and the two layers of vacuum insulation panels are both engaged with the slots. The two layers of vacuum insulation panels do not contact each other and do not contact the inner wall of the double-layer rectangular cavity. The insulation brackets are made of low thermal conductivity material, and the side walls of the double-layer rectangular cavity are provided with vacuum valves. The entire double-layer rectangular cavity is vacuumed.

[0011] Optionally, the sealing assembly includes a trapezoidal sealing plate, sealing strips are provided on both sides of the trapezoidal sealing plate, the sealing strip includes a spherical part and a horizontal part, the outer end of the spherical part contacts the inner wall of the double-layer rectangular cavity, and the horizontal part contacts the end face of the opening of the double-layer rectangular cavity, a sealing plate is provided at the opening of the storage cavity, and the outer end of the sealing plate is against the double-layer rectangular cavity, the end of the trapezoidal sealing plate close to the storage cavity is fixedly connected to the sealing plate, and the end away from the storage cavity is fixedly connected to the insulating partition.

[0012] Optionally, the temperature control system includes a refrigeration system, a power supply system and a control system. The refrigeration system includes an outer shell fixedly connected to the outer wall of the double-layer rectangular cavity. A small DC compressor is fixedly connected to the bottom of the outer shell. The storage cavity has an open end face, and a plurality of air damper grilles are provided on the inner wall opposite to the open end face.

[0013] Optionally, the inner wall of the storage chamber is fixedly connected to several support plates distributed at equal intervals, an upper evaporator is provided at the position of the air damper grille in the upper temperature control zone, and a lower evaporator is provided at the position of the air damper grille in the lower temperature control zone. A temperature sensor is provided on the inner wall of the storage chamber, and the temperature sensor is electrically connected to the control system.

[0014] Optionally, the power supply system includes a solar panel arranged on the top of the box and a solid sulfide battery arranged on the bottom of the box, and the solar panel is electrically connected to the solid sulfide battery through a charging control circuit.

[0015] Optionally, the outer end of the double-layer rectangular cavity is hinged with an insulating door panel, the outer end of the insulating door panel is fixedly connected to a trapezoidal sealing strip matching the trapezoidal sealing plate, the outer end of the box is rotatably connected to a handle, and the bottom of the box is fixedly connected to a universal wheel.

[0016] Optionally, a storage chamber is provided at the bottom of the box, the storage chamber is slidably connected to the box, a drone is provided in the storage chamber, and an audible and visual alarm is fixedly connected to the outer end of the box.

[0017] The present invention has the following advantages and beneficial effects:

[0018] 1. The present invention provides a multifunctional and high-efficiency pharmaceutical constant temperature box. A multi-layer nested insulation structure is set inside the box, including an outer vacuum insulation layer, a middle phase change temperature regulation layer and an inner storage cavity. When storing vaccines, the phase change materials with different melting points in the middle phase change temperature regulation layer can automatically undergo phase change and absorb or release heat according to temperature changes, effectively buffering temperature fluctuations; the outer vacuum insulation layer blocks heat conduction and heat radiation through vacuum insulation panels and reflective films, greatly improving the insulation performance. When the ambient temperature rises, the phase change material absorbs heat and melts to prevent the temperature inside the box from rising; when the ambient temperature drops, the phase change material releases heat and solidifies to maintain a stable temperature inside the box.

[0019] Second, the box is divided into an upper temperature-controlled zone and a lower temperature-controlled zone by an insulating partition, which can meet the storage needs of different types of vaccines at the same time. There is no need to use multiple devices for separate storage, which greatly improves the storage and transportation efficiency. At the same time, it is equipped with solar panels and solid-state sulfide battery power supply systems, which can work independently in remote areas or power outages. In addition, due to the multi-layer insulation structure, heat loss is reduced and the startup frequency of the refrigeration system is reduced, resulting in lower overall energy consumption and longer battery life, thereby improving the reliability and economy of storage and transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the multifunctional and high-performance pharmaceutical constant temperature box in the open state of the present invention;

[0021] Figure 2 It is a structural diagram of the box of the present invention;

[0022] Figure 3 A partial view of the multifunctional and high-performance pharmaceutical incubator of the present invention;

[0023] Figure 4 It is a first partial view of the present invention;

[0024] Figure 5 It is a second partial view of the present invention;

[0025] Figure 6 This is a structural diagram of the sealing assembly of the present invention;

[0026] Figure 7 This is a front view of the multifunctional and high-performance pharmaceutical constant temperature box of the present invention;

[0027] Figure 8 for Figure 7 Cross-sectional view along AA direction;

[0028] Figure 9 for Figure 8 Cross-sectional view along the BB direction;

[0029] Figure 10 for Figure 9 Cross-sectional view along CC direction;

[0030] Figure 11 for Figure 10 A partial enlarged view of point D in the middle;

[0031] Figure 12 for Figure 10 A partial enlarged view of point E in the middle;

[0032] Figure 13 for Figure 10 A partial enlarged view of point F in the middle;

[0033] Figure 14 This is the overall structural diagram of the multifunctional and high-performance pharmaceutical constant temperature box of the present invention.

[0034] Figure numerals: 1. Insulating partition; 2. Storage cavity; 3. Heat conducting plate; 4. Temperature control chamber; 5. Insulating isolation layer; 6. Insulating column; 7. Reflective film; 8. Double-layer rectangular cavity; 9. Vacuum insulation panel; 10. Insulating bracket; 11. Card slot; 12. Trapezoidal sealing plate; 13. Sealing strip; 14. Sealing plate; 15. Outer shell; 16. Small DC compressor; 17. Air damper grille; 18. Support plate; 19. Upper evaporator; 20. Lower evaporator; 21. Temperature sensor; 22. Solar panel; 23. Solid-state sulfide battery; 24. Insulating door panel; 25. Trapezoidal sealing strip; 26. Carrying handle; 27. Universal wheel; 28. Storage chamber; 29. ​​UAV; 30. Sound and light alarm. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0036] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are intended to fall within the scope of protection of the present invention.

[0037] Example

[0038] like Figure 1-Figure 2 As shown, a multifunctional and high-efficiency pharmaceutical constant temperature box includes a box body and a temperature control system. The box body has a double-layer structure, and the interior of the box is divided into an upper temperature control zone and a lower temperature control zone by an insulating partition 1. The upper temperature control zone is designed to have a working temperature of 2-8°C and is used to store most vaccines or medicines. The lower temperature control zone is designed to have a working temperature of -20-8°C and is used to store frozen vaccines or medicines.

[0039] The box body is a multi-layer nested insulation structure, including an outer vacuum insulation layer, a middle phase change temperature regulating layer and an inner storage cavity 2.

[0040] like Figure 2-Figure 3 and Figure 13-14 As shown, the middle phase change temperature control layer includes several temperature control modules with different melting points fixedly connected to the storage cavity 2, and the temperature control module includes a heat conducting plate 3 fixedly connected to the outer end of the storage cavity 2. The heat conducting plate 3 is made of copper material and can quickly and evenly transfer the temperature changes in the storage cavity 2 to the phase change material in the temperature control chamber 4. The outer end of the heat conducting plate 3 is fixedly connected to the temperature control chamber 4, and the temperature control chamber 4 is filled with phase change material.

[0041] The upper temperature control zone is designed to have an operating temperature of 2-8°C and is mainly used for storing conventional vaccines, insulin, growth hormone and other biological preparations. The corresponding temperature control chamber 4 is filled with paraffin-based phase change materials with melting points of 2°C, 5°C and 8°C respectively. Temperature control is achieved through three phase change materials: when the temperature rises close to 8°C, the 8°C phase change material begins to melt and absorb heat to prevent the temperature from continuing to rise; when the temperature drops close to 2°C, the 2°C phase change material begins to solidify and release heat to prevent the medicine from freezing; the 5°C phase change material provides continuous adjustment in the intermediate temperature range to maintain the optimal storage state.

[0042] The lower temperature-controlled zone is designed to operate at a temperature between -20°C and 8°C, primarily used for storing frozen vaccines, certain monoclonal antibodies, and gene therapy drugs. The corresponding temperature-regulating chamber 4 is filled with paraffin-based phase-change materials with melting points of -20°C, -10°C, 0°C, and 8°C, respectively. Four phase-change materials enable wide-range temperature control: the -20°C and -10°C phase-change materials are primarily used for deep-freeze storage, stabilizing the low-temperature environment through latent heat of phase change during temperature fluctuations; the 0°C and 8°C phase-change materials are primarily used for refrigerated storage, adapting to the temperature transition from freezing to refrigeration. This multi-layered configuration of phase-change materials creates a temperature gradient regulation system, ensuring that different pharmaceutical products receive the most suitable storage environment.

[0043] like Figure 3-Figure 5 As shown, the outer end of the temperature control chamber 4 is provided with an insulating isolation layer 5, which is made of aerogel material. A number of insulating columns 6 are fixedly connected to the outer wall of the insulating isolation layer 5. The insulating columns 6 are made of polyetheretherketone material, which has excellent thermal insulation performance and mechanical strength, can effectively block the transfer of heat bridges, and at the same time withstand the mechanical stress caused by temperature changes. The end of the insulating column 6 away from the insulating isolation layer 5 is against the outer vacuum insulation layer, and an air gap is formed between the insulating isolation layer 5 and the outer vacuum insulation layer. On the one hand, the air gap can effectively block heat conduction. On the other hand, the air gap can also compensate for the thermal expansion and contraction of each layer of material due to temperature changes, thereby avoiding structural stress damage. This design, together with the reflective film 7 and the vacuum insulation panel 9, constitutes a multiple insulation barrier, which significantly improves the overall insulation effect.

[0044] The outer vacuum insulation layer includes a reflective film 7 that is offset against the insulating column 6. The reflective film 7 is made of aluminum foil. The aluminum foil has a high thermal reflectivity and can effectively reflect infrared radiation heat, block radiation heat transfer, and further improve the insulation effect. The outer wall of the reflective film 7 is fixedly connected with a double-layer rectangular cavity 8. The double-layer rectangular cavity 8 is made of stainless steel. Stainless steel has good corrosion resistance and mechanical strength, can maintain structural integrity for a long time, and is easy to clean and maintain. A vacuum insulation panel 9 is provided in the double-layer rectangular cavity 8. The double-layer rectangular cavity 8 is provided with an opening and is equipped with a sealing component.

[0045] like Figure 5 、 Figure 10-12 As shown, insulation brackets 10 are provided at the four corners of the double-layer rectangular cavity 8. The insulation brackets 10 are made of polyetheretherketone material, have low thermal conductivity and high strength, can support the vacuum insulation panel 9 while minimizing the thermal bridge effect, and the insulation brackets 10 are provided with a plurality of card slots 11, the width of which matches the thickness of the vacuum insulation panel 9. Two layers of vacuum insulation panels 9 are arranged in the double-layer rectangular cavity 8. The vacuum insulation panel 9 adopts a multi-layer reflective screen structure, which can simultaneously block the three heat transfer modes of conduction, convection and radiation. The two layers of vacuum insulation panels 9 are both connected to the card slots 11. The two layers of vacuum insulation panels 9 do not contact each other and do not contact the inner wall of the double-layer rectangular cavity 8 to avoid the thermal bridge effect. The vacuum valve is used to vacuum the double-layer rectangular cavity 8. The entire double-layer rectangular cavity 8 is vacuumed to further improve the insulation performance.

[0046] like Figure 1 and Figure 6 As shown, the sealing assembly includes a trapezoidal sealing plate 12, which is made of stainless steel. Sealing strips 13 are provided on both sides of the trapezoidal sealing plate 12. The sealing strips 13 are made of fluororubber and have a temperature resistance range of -40°C to +200°C. The sealing strips 13 include a spherical portion and a horizontal portion. The outer end of the spherical portion contacts the inner wall of the double-layer rectangular cavity 8, and the horizontal portion contacts the end face at the opening of the double-layer rectangular cavity 8 to form a double seal. When the double-layer rectangular cavity 8 is evacuated, the seal can be further enhanced under the action of the external atmospheric pressure. A sealing plate 14 is provided at the opening of the storage cavity 2. The sealing plate 14 is made of stainless steel. The outer end of the sealing plate 14 is against the double-layer rectangular cavity 8. The end of the trapezoidal sealing plate 12 close to the storage cavity 2 is fixedly connected to the sealing plate 14, and the end away from the storage cavity 2 is fixedly connected to the insulating partition 1.

[0047] The temperature control system includes a refrigeration system, a power supply system and a control system. The refrigeration system adopts a dual-circuit design, including an outer shell 15 fixedly connected to the outer wall of the double-layer rectangular cavity 8. The outer shell 15 is made of aluminum alloy and has good heat dissipation performance. A small DC compressor 16 is fixedly connected to the bottom of the outer shell 15, which adopts variable frequency control technology and the refrigerant is R134a. The refrigeration system also includes an air-cooled condenser, which is installed on the back of the outer shell 15 and is equipped with a small axial flow fan for forced heat dissipation. The throttling device adopts an electronic expansion valve, which can accurately control the refrigerant flow rate with an adjustment range of 0% to 100%. The storage chamber 2 has an open end face, and a number of air door grilles 17 are provided on the inner wall opposite to the open end face for cold air circulation.

[0048] like Figure 7-Figure 9 As shown, the complete cycle loop of the refrigeration system is as follows: the small DC compressor 16 sucks the low-temperature, low-pressure refrigerant vapor from the evaporator, compresses it into high-temperature, high-pressure refrigerant vapor through mechanical compression, and then discharges the high-temperature, high-pressure vapor into the condenser. The high-temperature, high-pressure refrigerant vapor enters the air-cooled condenser. Under the forced heat dissipation of the axial fan, the refrigerant vapor releases heat to the environment, the temperature gradually decreases and condenses into high-pressure liquid refrigerant, completing the phase change process from gas to liquid. The condensed high-pressure liquid refrigerant flows into the liquid reservoir. The liquid reservoir plays the role of storing excess refrigerant and gas-liquid separation, ensuring that the output refrigerant is in a pure liquid state, preparing for the subsequent throttling process. The high-pressure liquid refrigerant output from the liquid reservoir enters the splitter, which distributes the refrigerant to two independent refrigeration circuits as needed: the upper temperature control zone return The high-pressure liquid refrigerant is throttled and reduced in pressure through the electronic expansion valve a and the electronic expansion valve b according to the temperature requirements of each temperature control zone. The electronic expansion valve accurately adjusts the opening according to the temperature requirements of each temperature control zone to control the refrigerant flow. The high-pressure liquid is rapidly depressurized after throttling, and part of the liquid flashes into steam to form a low-temperature and low-pressure vapor-liquid mixture. The low-temperature and low-pressure vapor-liquid mixture enters the upper evaporator 19 and the lower evaporator 20 respectively, absorbs heat in the storage chamber in the evaporator and vaporizes to achieve a cooling effect. The circulating fan in the evaporator ensures uniform distribution of cooling capacity and maintains the set temperature of each temperature control zone. The low-temperature and low-pressure refrigerant vapor that completes the evaporation process flows out of the two evaporators, merges into one path again through the merging pipe, and then returns to the suction port of the compressor 16 to complete a complete refrigeration cycle.

[0049] The refrigeration system achieves precise dual-zone control through independent refrigerant circuits: When the temperature in the upper temperature-controlled zone exceeds the set value, the control system opens the upper solenoid valve, allowing refrigerant to enter the upper evaporator 19 for cooling; when the temperature in the lower temperature-controlled zone exceeds the set value, the control system opens the lower solenoid valve, allowing refrigerant to enter the lower evaporator 20 for cooling. The two circuits can operate simultaneously or independently, achieving true independent dual-zone control. Several equally spaced support plates 18 are fixedly attached to the inner wall of the storage chamber 2. The support plates 18 are made of stainless steel, offering excellent load-bearing and corrosion resistance. The height of the support plates 18 is adjustable, and the spacing can be adjusted to suit the stored items. A temperature sensor 21 is installed on the inner wall of the storage chamber 2. The temperature sensor 21 uses a platinum resistor PT100, which has high temperature measurement accuracy, good stability, and excellent linearity. It can accurately monitor temperature changes and provide reliable feedback signals to the control system. Two temperature sensors 21 are installed in each of the upper and lower temperature-controlled zones, monitoring the air inlet and outlet temperatures, respectively, to ensure accurate and comprehensive temperature monitoring. The temperature sensors 21 are electrically connected to the control system.

[0050] The control system includes a main controller, a display and operation unit, a communication module and an alarm system. The display and operation unit can display the temperature curve, battery status, system operating parameters, fault diagnosis information, etc. in real time. The operation interface supports switching between Chinese and English and has an intuitive graphical interface. The communication module supports 4G / Wi-Fi / Bluetooth three-mode communication, which can realize remote monitoring, data upload, firmware upgrade and other functions. The control system reserves a standardized interface, which can be connected with the vaccine cold chain traceability system (such as VVM vaccine bottle monitor) to realize full cold chain traceability and quality monitoring of vaccines. The system is also equipped with an audible and visual alarm 30, which automatically alarms when the temperature exceeds the limit, the battery is low, or the system fails. The audible and visual alarm 30 has a unique alarm mode in a batch of vaccine incubators, and can quickly locate abnormal equipment through different flashing frequencies and sound patterns. The alarm information is also sent to the monitoring platform through the communication module.

[0051] like Figure 1 and Figure 8As shown, the power supply system includes a solar panel 22 arranged on the top of the box, a solid-state sulfide battery 23 arranged at the bottom of the box, a charging control circuit, a power management unit and a battery protection circuit. The solar panel 22 is electrically connected to the solid-state sulfide battery 23 through the charging control circuit. The charging control circuit can track the maximum power output point of the solar panel 22 in real time and has anti-reverse charging and anti-overcharging functions. The solid-state sulfide battery 23 has the advantages of high safety, high energy density and extreme temperature resistance. Compared with traditional lithium batteries, it is more suitable for medical storage and transportation applications. The power management unit can achieve multi-channel voltage stabilization output, provide power for the refrigeration system, provide power for the control system, and ensure that each subsystem has a stable power supply. The battery protection circuit has functions such as overcharge protection, over-discharge protection, short circuit protection, and temperature protection to ensure the safe and reliable operation of the solid-state sulfide battery 23. The power supply system is also equipped with a power indicator that can display the remaining battery power and expected battery life in real time.

[0052] The outer end of the double-layer rectangular cavity 8 is hinged with an insulating door panel 24. The insulating door panel 24 adopts a multi-layer composite structure. The outer layer is a stainless steel plate with good corrosion resistance and mechanical strength. The middle layer is an aerogel insulation material, which provides excellent insulation performance. The outer end of the insulating door panel 24 is fixedly connected to a trapezoidal sealing strip 25 that matches the trapezoidal sealing plate 12. The trapezoidal sealing strip 25 is made of silicone rubber material, has good elasticity and aging resistance, and forms a precise match with the trapezoidal sealing plate 12 to ensure the sealing effect during opening and closing. The outer end of the box is rotatably connected to a handle 26. The handle 26 is made of engineering plastic, conforms to ergonomic design, and has an anti-slip texture treatment on the surface to provide a comfortable grip. The bottom of the box is fixedly connected to a universal wheel 27 with a brake function for easy movement and fixation.

[0053] The present invention realizes multifunctional and efficient constant temperature storage and transportation of medicines by setting up dual temperature control zones inside the box, adopting a multi-layer nested insulation structure, and combining an intelligent refrigeration system and a solar power supply system. When it is necessary to store pharmaceutical products with different temperature requirements, the corresponding temperature control zone can be selected according to needs, and the refrigeration system automatically adjusts the temperature to ensure that the pharmaceutical products are in a suitable storage environment. The solar panel 22 continuously powers the system, and the solid-state sulfide battery 23 provides backup power in the absence of light, ensuring continuous and reliable operation of the equipment.

[0054] Example 2

[0055] like Figure 1 、 Figure 8 and Figure 14As shown, this embodiment adds a storage chamber 28 and a drone 29 on the basis of Example 1, and is specially designed for emergency rescue and medicine delivery in remote areas. A storage chamber 28 is provided at the bottom of the box body, and the storage chamber 28 is made of carbon fiber composite material. The storage chamber 28 is slidably connected to the box body, and smooth pulling out and storage are achieved through a precision guide rail mechanism. The guide rail is made of stainless steel material with good corrosion resistance and sliding performance. A drone 29 is provided in the storage chamber 28. The drone 29 is a small four-rotor drone driven by a brushless motor with low noise and high efficiency.

[0056] Storage compartment 28 is equipped with a drone charging port, connected to the box's power supply system, to provide charging services for drone 29. Drone 29 is powered by electricity generated by solar panels 22, achieving environmentally friendly aerial transportation. Storage compartment 28 is equipped with a polyurethane shock-absorbing cushion. Polyurethane material has excellent shock absorption and resilience, effectively protecting drone 29 from vibration damage during transportation.

[0057] Drone 29 is equipped with a Beidou positioning system and an automatic delivery mechanism to ensure accurate positioning information in different geographical environments. When emergency medical delivery is required, small doses of medical products can be placed in a special delivery box and accurately delivered by drone 29.

[0058] This structure is particularly suitable for emergency medical rescue after natural disasters such as earthquakes and floods, as well as medicine distribution in remote mountainous areas, islands and other areas with inconvenient transportation. In cases where there are dense crowds or the epidemic is serious and ground transportation is difficult, seamless contactless transportation in the air can be achieved to avoid the risk of human contact. Through the aerial delivery capability of the drone 29, urgently needed medicines can be quickly delivered to the target area, improving the timeliness and coverage of medical rescue.

[0059] The working principle of this solution is as follows: when the medicine constant temperature box is working, the corresponding temperature control zone is first selected according to the stored medicine products, and the temperature sensor 21 monitors the temperature of the temperature control zone in real time. When the temperature deviates from the set range, the control system starts the refrigeration system for adjustment.

[0060] The temperature control module buffers temperature fluctuations through the latent heat of phase change material. When the ambient temperature rises, the phase change material absorbs heat and undergoes phase change. When the ambient temperature drops, the phase change material releases heat and solidifies, thereby maintaining a stable temperature in the storage chamber 2.

[0061] The outer vacuum insulation layer blocks heat conduction through the vacuum insulation panels 9, while the reflective film 7 reflects heat radiation. These multiple insulation measures ensure excellent thermal insulation performance. The solar panels 22 continuously power the system, and the solid-state sulfide battery 23 provides a stable backup power source.

[0062] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A multifunctional and high-performance pharmaceutical constant temperature box, comprising a box body and a temperature control system, characterized in that: The interior of the box is divided into an upper temperature control zone and a lower temperature control zone by a heat-insulating partition (1); The box body is a multi-layer nested insulation structure, comprising an outer vacuum insulation layer, a middle phase change temperature regulating layer and an inner storage cavity (2); The middle phase-change temperature-regulating layer comprises a plurality of temperature-regulating modules with different melting points fixedly connected to the storage cavity (2), the temperature-regulating modules comprising a heat-conducting sheet (3) fixedly connected to the outer end of the storage cavity (2), the outer end of the heat-conducting sheet (3) fixedly connected to a temperature-regulating chamber (4), the outer end of the temperature-regulating chamber (4) being provided with a heat-insulating isolation layer (5), the outer wall of the heat-insulating isolation layer (5) being fixedly connected to a plurality of heat-insulating columns (6), one end of the heat-insulating column (6) away from the heat-insulating isolation layer (5) being in contact with the outer vacuum heat-insulating layer, and an air gap being formed between the heat-insulating isolation layer (5) and the outer vacuum heat-insulating layer; The outer vacuum insulation layer comprises a reflective film (7) abutting against the insulation column (6); the outer wall of the reflective film (7) is fixedly connected with a double-layer rectangular cavity (8); a vacuum insulation panel (9) is provided in the double-layer rectangular cavity (8); and the double-layer rectangular cavity (8) is provided with an opening and is equipped with a sealing component.

2. The multifunctional and high-performance pharmaceutical constant temperature box according to claim 1, characterized in that: The four corners of the double-layer rectangular cavity (8) are all provided with insulation brackets (10), and the insulation brackets (10) are provided with a plurality of card slots (11). Two layers of vacuum insulation panels (9) are arranged in the double-layer rectangular cavity (8), and the two layers of vacuum insulation panels (9) are both card-engaged with the card slots (11). The two layers of vacuum insulation panels (9) do not contact each other and do not contact the inner wall of the double-layer rectangular cavity (8). The insulation brackets (10) are made of low thermal conductivity material, and the side walls of the double-layer rectangular cavity (8) are provided with vacuum valves. The entire double-layer rectangular cavity (8) is vacuumed.

3. The multifunctional and high-performance pharmaceutical constant temperature box according to claim 1, characterized in that: The sealing assembly comprises a trapezoidal sealing plate (12), and sealing strips (13) are provided on both sides of the trapezoidal sealing plate (12). The sealing strip (13) comprises a spherical portion and a horizontal portion. The outer end of the spherical portion contacts the inner wall of the double-layer rectangular cavity (8), and the horizontal portion contacts the end face of the opening of the double-layer rectangular cavity (8). A sealing plate (14) is provided at the opening of the storage cavity (2), and the outer end of the sealing plate (14) abuts against the double-layer rectangular cavity (8). The end of the trapezoidal sealing plate (12) close to the storage cavity (2) is fixedly connected to the sealing plate (14), and the end away from the storage cavity (2) is fixedly connected to the insulation partition (1).

4. The multifunctional and high-performance pharmaceutical constant temperature box according to claim 1, characterized in that: The temperature control system includes a refrigeration system, a power supply system and a control system. The refrigeration system includes an outer shell (15) fixedly connected to the outer wall of the double-layer rectangular cavity (8). A small DC compressor (16) is fixedly connected to the bottom of the outer shell (15). The storage cavity (2) has an open end face, and a plurality of air door grilles (17) are provided on the inner wall opposite to the open end face.

5. The multifunctional and high-performance pharmaceutical constant temperature box according to claim 4, characterized in that: The inner wall of the storage chamber (2) is fixedly connected to a plurality of support plates (18) distributed at equal intervals; an upper evaporator (19) is provided at a position of the upper temperature control zone corresponding to the air door grille (17); a lower evaporator (20) is provided at a position of the lower temperature control zone corresponding to the air door grille (17); a temperature sensor (21) is provided on the inner wall of the storage chamber (2), and the temperature sensor (21) is electrically connected to a control system.

6. The multifunctional and high-performance pharmaceutical incubator according to claim 4, characterized in that: The power supply system comprises a solar panel (22) arranged on the top of the box and a solid sulfide battery (23) arranged on the bottom of the box, and the solar panel (22) is electrically connected to the solid sulfide battery (23) through a charging control circuit.

7. The multifunctional and high-performance pharmaceutical constant temperature box according to claim 1, characterized in that: The outer end of the double-layer rectangular cavity (8) is hinged with an insulating door panel (24), the outer end of the insulating door panel (24) is fixedly connected with a trapezoidal sealing strip (25) matching the trapezoidal sealing plate (12), the outer end of the box body is rotatably connected with a handle (26), and the bottom of the box body is fixedly connected with a universal wheel (27).

8. The multifunctional and high-performance pharmaceutical constant temperature box according to claim 1, characterized in that: A storage chamber (28) is provided at the bottom of the box body, the storage chamber (28) is slidably connected to the box body, a drone (29) is provided in the storage chamber (28), and an audible and visual alarm (30) is fixedly connected to the outer end of the box body.

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