Refrigeration storage device

Abstract

The invention discloses a refrigeration storage device, and belongs to the technical field of portable refrigeration equipment, the refrigeration storage device comprises a heat insulation box body, a refrigeration assembly, an electric energy supply assembly and a heat pipe, the heat insulation box body is internally provided with a storage cavity for storing medicines; the refrigeration assembly comprises a refrigeration device and a refrigeration fan, the refrigeration end of the refrigeration device is located in the storage cavity, and the refrigeration fan is located in the storage cavity and used for forming convection in the storage cavity; the electric energy supply assembly is electrically connected with the refrigeration device and the refrigeration fan and used for providing electric energy for operation of the refrigeration assembly. The evaporation ends of the heat pipes are located in the storage cavity, and the condensation ends of the heat pipes are located outside the heat insulation box. When the temperature of the storage cavity is higher than the external environment temperature, cooling can be carried out more quickly, after the temperature of the storage cavity is lower than the external environment temperature, heat insulation can be carried out through the heat insulation box body, cooling capacity loss is reduced, and finally the proper storage temperature is maintained.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of portable refrigeration equipment, in particular to a refrigeration storage device. BACKGROUND

[0002] Under the background of global extreme climate, the demand for emergency medical security in high-temperature harsh environments such as deserts, plateaus and gobi is increasingly prominent. In natural disasters (such as earthquakes, droughts and sandstorms) and humanitarian rescue scenes, the activity maintenance of temperature-sensitive drugs such as vaccines, antibiotics and insulin is directly related to the effectiveness of rescue. However, the daytime temperature in the above-mentioned areas often reaches 45-55℃, and the traditional drug refrigeration technology is difficult to meet the storage demand: The current mainstream drug refrigeration equipment relies on external power supply or disposable cold storage agent, and has weak endurance and poor environmental adaptability, which is difficult to cope with the field scene without power infrastructure. Although some high-end portable refrigeration boxes integrate battery and compressor refrigeration modules, they have problems such as high energy consumption, high cost and bulky structure, and cannot realize long-time stable operation.

[0003] The traditional cold chain system is limited by infrastructure, and has insufficient reliability in drug transportation and on-site storage in high-temperature disaster areas and remote areas, which may lead to drug failure due to temperature loss of control, and even cause secondary medical risks.

[0004] The prior art lacks customized solutions for complex conditions such as high temperature, high radiation and energy shortage, and there is an urgent need for a refrigeration storage device to improve the drug security capability in the fields of field emergency medical care, border patrol and field scientific research. SUMMARY

[0005] The purpose of the present application is to provide a refrigeration storage device to solve the problems existing in the prior art. The refrigeration device is used for refrigeration, the storage cavity is provided with cold energy, the refrigeration fan is used to form convection, the air flow and heat exchange of the storage cavity are strengthened, and the heat pipe is used to improve the heat dissipation capacity of the storage cavity and the outside, so that when the temperature of the storage cavity is higher than that of the outside, the refrigeration can be carried out more quickly, and when the temperature of the storage cavity is lower than that of the outside, the heat loss can be reduced by using the heat insulation box, and finally the storage temperature can be maintained at an appropriate temperature.

[0006] To achieve the above purpose, the present application provides the following scheme: The application provides a cold storage device, which comprises a heat insulation box, a refrigeration assembly, an electric energy supply assembly and a heat pipe, the heat insulation box has a storage cavity for storing medicines inside, the refrigeration assembly comprises a refrigeration device and a refrigeration fan, the refrigeration end of the refrigeration device is located in the storage cavity, the refrigeration fan is located in the storage cavity and is used for forming a convection in the storage cavity, the electric energy supply assembly is electrically connected with the refrigeration device and the refrigeration fan respectively, and the electric energy supply assembly is used for providing electric energy for the operation of the refrigeration assembly; the evaporation end of the heat pipe is located in the storage cavity, and the condensation end of the heat pipe is located outside the heat insulation box.

[0007] In an embodiment, the refrigeration device adopts a semiconductor refrigeration sheet, the cold end of the semiconductor refrigeration sheet is located in the storage cavity, the hot end of the semiconductor refrigeration sheet is located outside the heat insulation box, the refrigeration assembly further comprises a first fin, the first fin is connected to the cold end of the semiconductor refrigeration sheet, and the refrigeration fan is installed on the first fin.

[0008] In an embodiment, the refrigeration assembly further comprises a second fin and a heat dissipation fan, the second fin is connected to the hot end of the semiconductor refrigeration sheet, the heat dissipation fan is installed on the second fin, and the heat dissipation fan is electrically connected with the electric energy supply assembly.

[0009] In an embodiment, a heat conduction assembly is further included, the heat conduction assembly comprises a first fixing seat, a second fixing seat and a spring, the first fixing seat is installed on the inner top plate of the heat insulation box, the second fixing seat is installed on the evaporation end of the heat pipe, the first end of the spring is abutted against the first fixing seat, and the second end of the spring is abutted against the second fixing seat.

[0010] In an embodiment, the heat insulation box adopts a cuboid structure, the refrigeration assembly is installed on the first side surface of the cuboid structure, and the heat pipe is installed on the second side surface of the cuboid structure opposite to the first side surface.

[0011] In an embodiment, the electric energy supply assembly comprises a storage battery and a solar cell panel, the solar cell panel is electrically connected with the storage battery, the storage battery and the solar cell panel are connected with an electric device through a conversion device, and the conversion device is used for switching between storage battery power supply and solar cell panel power supply.

[0012] In an embodiment, the electric energy supply assembly further comprises a light ray tracker, the light ray tracker is installed on the top of the heat insulation box, and the moving end of the light ray tracker is connected with the solar cell panel.

[0013] In an embodiment, the light ray tracker comprises a bracket, a frame and a glass cover plate, two brackets are installed on two sides of the heat insulation box, the frame is rotatably installed on the bracket, the solar panel is arranged in the frame, the glass cover plate covers the top of the frame, and a rotating drive motor is further arranged, and the rotating drive motor is used to drive the frame to rotate.

[0014] In an embodiment, a handle is further arranged on two sides of the heat insulation box, the handle comprises an extension table, a vertical rod and a horizontal rod, the extension table is installed on the heat insulation box, the vertical rod is vertically installed on the extension table, and the horizontal rod is arranged on the vertical rod.

[0015] In an embodiment, a temperature-sensitive resistor is further arranged in the storage cavity, the temperature-sensitive resistor is electrically connected with a controller, the controller is electrically connected with the refrigeration assembly, when the temperature of the storage cavity reaches a set threshold value, the controller starts the refrigeration assembly to reduce the temperature, and when the temperature of the storage cavity is reduced to a preset temperature range, the controller reduces the rotating speed of the refrigeration fan or closes the refrigeration device.

[0016] The present application has the following technical effects relative to the prior art: The present application utilizes the refrigeration device to provide cold energy for the storage cavity, utilizes the refrigeration fan to form convection, strengthens the air flow and heat exchange of the storage cavity, utilizes the heat pipe to improve the heat dissipation capacity of the storage cavity and the external environment, so that the temperature of the storage cavity can be reduced more quickly when the temperature of the storage cavity is higher than the temperature of the external environment, and the cold energy loss can be reduced by the heat insulation box when the temperature of the storage cavity is lower than the temperature of the external environment, so that the storage temperature can be finally maintained, the present application is suitable for extreme environments such as high temperature and high radiation, and can improve the drug support capability in the fields of field emergency medical treatment, border patrol and field scientific research.

[0017] The other technical solutions of the present application can also achieve the following technical effects: The electric energy supply assembly comprises a storage battery and a solar panel, the solar panel can supply electric energy when the sun is sufficient, and the storage battery can supply electric energy when the sun is insufficient, so that the portable constant-temperature medicine box with the three-in-one combination of the solar photovoltaic power supply, the active refrigeration of the refrigeration device and the passive heat dissipation of the heat pipe is formed, and the problems of the traditional refrigeration equipment, such as strong dependence on external energy, short running time and inaccurate temperature control, are solved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings described below only illustrate some of the embodiments of the present application, and are not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by a person of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0019] Figure 1 It is a first angle schematic view of the overall structure in the embodiment of the present application. Figure 2 It is a second angle schematic view of the overall structure in the embodiment of the present application. Figure 3 It is an exploded view of the electric energy supply assembly in the embodiment of the present application. Figure 4 It is a schematic view of the heat pipe and heat conduction assembly in the embodiment of the present application. Figure 5 It is a schematic view of the refrigeration assembly in the embodiment of the present application. Figure 6 It is a schematic view of the handle in the embodiment of the present application. Figure 7 It is a schematic view of the refrigeration storage device in the embodiment of the present application. Among them, 1, the heat insulation box; 2, the refrigeration assembly; 3, the electric energy supply assembly; 4, the heat pipe; 5, the handle; 6, the sealing door; 7, the light ray tracker; 8, the storage battery; 9, the temperature sensitive resistor; 10, the fixed resistor; 11, the operational amplifier; 12, the controller; 13, the thermometer; 21, the refrigeration device; 22, the refrigeration fan; 23, the first fin; 24, the heat dissipation fan; 25, the second fin; 31, the support; 32, the frame; 33, the glass cover plate; 34, the rotation driving motor; 35, the solar cell panel; 36, the light sensitive sensor; 41, the first fixed seat; 42, the second fixed seat; 43, the spring; 51, the extension table; 52, the vertical rod; 53, the horizontal rod. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, and are not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by a person of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0021] The present application aims to provide a refrigeration storage device to solve the problems existing in the prior art, using a refrigeration device to provide cold storage cavity, using a refrigeration fan to form a convection, to strengthen the storage cavity airflow and heat exchange, at the same time, using heat pipe to improve the heat dissipation capacity of the storage cavity and the outside, so that when the temperature of the storage cavity is higher than the outside environment, it can be cooled more quickly, and when the temperature of the storage cavity is lower than the outside environment, it can be insulated by the heat insulation box to reduce the cold loss, and finally maintain the appropriate storage temperature.

[0022] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0023] As Figures 1-7As shown, the present application provides a refrigeration storage device, comprising a heat insulation box 1, a refrigeration assembly 2, an electric energy supply assembly 3 and a heat pipe 4, wherein the heat insulation box 1 is made of heat preservation and insulation material, has good heat preservation and insulation effect, and the heat preservation and insulation material can be a multi-layer composite heat preservation material to further enhance the heat preservation and insulation effect. The heat insulation box 1 has a storage cavity inside for storing medicines. It should be noted that in addition to medicines, the storage cavity can also be used to store other cold storage items. The refrigeration assembly 2 comprises a refrigeration device 21 and a refrigeration fan 22. The refrigeration device 21 can cool after being powered on. It can be a refrigeration device 21 composed of a compressor and a condenser, or a refrigeration device 21 composed of a semiconductor device. Regardless of the structure, the refrigeration end of the refrigeration device 21 is located in the storage cavity to release cold energy in the storage cavity. The refrigeration fan 22 is located in the storage cavity. The refrigeration fan 22 is used to form a convection in the storage cavity to improve the air flow and heat exchange capacity inside the storage cavity, so that the cold energy of the refrigeration end is diffused in the storage cavity, improving the refrigeration effect. The electric energy supply assembly 3 is electrically connected with the refrigeration device 21 and the refrigeration fan 22 respectively, so that the electric energy supply assembly 3 can provide electric energy for the operation of the refrigeration assembly 2 (including the refrigeration device 21 and the refrigeration fan 22). The heat pipe 4 is installed on the heat insulation box 1. The heat pipe 4 comprises an evaporation end and a condensation end. The evaporation end is located in the storage cavity, and the condensation end is located outside the heat insulation box 1. The medium in the heat pipe 4 vaporizes after absorbing heat at the evaporation end. The vaporized medium flows to the condensation end, releases heat and condenses at the condensation end. The condensed medium flows back to the evaporation end, and the process is repeated to complete the transfer and dissipation of heat. The medium can be alcohol, water, etc. When ionized water is used as the medium, it is suitable for a working temperature range of 30℃~40℃, and can maintain efficient heat transfer and dissipation in the medicine storage environment. Therefore, the heat pipe 4 can quickly transfer the heat in the storage cavity of the heat insulation box 1 to the outside of the heat insulation box 1, achieving efficient passive heat dissipation. It should be noted that when the temperature in the storage cavity is higher than the temperature in the external environment, the heat pipe 4 can play an important role in rapid heat transfer. When the temperature in the storage cavity decreases to the temperature in the external environment, the heat pipe 4 no longer passively functions. To prevent the heat pipe 4 from transferring heat in the opposite direction, the heat pipe 4 can be a one-way heat pipe 4, such as a one-way valve installed at the condensation end of the heat pipe 4, which only allows steam to flow from the heat insulation box 1 to the external environment, but not in the opposite direction, thereby blocking the reverse heat transfer.

[0024] The application utilizes the refrigeration device 21 to carry out refrigeration, provides cold energy of the storage cavity, utilizes the refrigeration fan 22 to form convection, strengthens air flow and heat exchange of the storage cavity, simultaneously, utilizes the heat pipe 4 to improve heat dissipation capacity of the storage cavity and the outside, so that when the temperature of the storage cavity is higher than the temperature of the outside environment, the refrigeration can be carried out more quickly, when the temperature of the storage cavity is lower than the temperature of the outside environment, the heat insulation box 1 can be utilized to carry out heat insulation and reduce cold energy loss, finally, the storage temperature is maintained at a suitable temperature, which is suitable for extreme environments such as high temperature and high radiation, and can improve the medicine guarantee capacity in the fields of field emergency medical treatment, border patrol and field scientific research.

[0025] In an embodiment, in combination with Figure 5 As shown, the refrigeration device 21 adopts a semiconductor refrigeration sheet, the semiconductor refrigeration sheet includes a cold end and a hot end, after the semiconductor refrigeration sheet is electrified, cold energy is generated at the cold end and heat is generated at the hot end by utilizing the Peltier effect. The cold end of the semiconductor refrigeration sheet is located in the storage cavity, and the hot end of the semiconductor refrigeration sheet is located outside the heat insulation box 1, so that the purpose of refrigerating the storage cavity by the cold end is realized. The refrigeration assembly 2 further includes a first fin 23 connected to the cold end of the semiconductor refrigeration sheet, and a refrigeration fan 22 installed on the first fin 23. The first fin 23 is arranged on one side to improve the transmission effect of the cold energy generated by the cold end, and on the other side to form an air flow channel between the first fins 23 after the refrigeration fan 22 is installed, so as to better carry the cold energy of the cold end and flow and transmit to the storage cavity.

[0026] The application couples the active semiconductor refrigeration sheet refrigeration with the passive heat pipe 4 heat dissipation technology, improves the cooling speed, significantly reduces the continuous energy consumption of the system while meeting the refrigeration demand. Especially in the plateau and desert environments where the temperature fluctuates frequently, the application can realize accurate maintenance and rapid response of the temperature of the medicine, and avoid the risk of invalidation of the medicine due to exposure in a high temperature environment.

[0027] In an embodiment, as shown in Figure 5 The refrigeration assembly 2 further includes a second fin 25 connected to the hot end of the semiconductor refrigeration sheet and a heat dissipation fan 24 installed on the second fin 25. The second fin 25 is arranged on one side to improve the transmission effect of the heat generated by the hot end, and on the other side to form an air flow channel between the second fins 25 after the heat dissipation fan 24 is installed, so as to better carry the heat of the hot end and dissipate to the outside environment. The heat dissipation fan 24 is electrically connected with the electric energy supply assembly 3 to obtain the electric energy of the electric energy supply assembly 3 and run.

[0028] In an embodiment, as shown in Figure 4As shown, the heat pipe 4 is provided with one or more, and each heat pipe 4 is further connected with a heat conduction assembly, the heat conduction assembly comprising a first fixing seat 41, a second fixing seat 42 and a spring 43, the first fixing seat 41 is installed on the top plate in the heat insulation box 1, the second fixing seat 42 is installed on the evaporation end of the heat pipe 4, and the first end of the spring 43 abuts against the first fixing seat 41, and the second end of the spring 43 abuts against the second fixing seat 42. The top plate of the heat insulation box 1 can be directly irradiated by the sun and warm up faster, the first fixing seat 41 and the second fixing seat 42 are pressed and fitted on the top plate in the heat insulation box 1 and the evaporation end of the heat pipe 4 respectively by the spring 43, the heat of the top plate of the heat insulation box 1 can be better transmitted to the evaporation end of the heat pipe 4, and then the heat of the top plate of the heat insulation box 1 is directly transmitted to a position outside the side plate of the heat insulation box 1 which has a relatively low temperature, the efficient conduction and heat dissipation of the heat of the top plate are realized, and thus the top plate of the heat insulation box 1 avoids transmitting too much heat to the storage cavity.

[0029] In an embodiment, as shown in Figure 1 and Figure 2 As shown, the heat insulation box 1 adopts a cuboid structure, the refrigeration assembly 2 is installed on the first side of the cuboid structure, the heat pipe 4 is installed on the second side opposite to the first side of the cuboid structure, the heat pipe 4 is horizontally arranged and transversely provided with one or more, and the sealing door 6 can be arranged below the heat pipe 4, and the sealing door 6 is opened and closed when the medicine needs to be stored or taken.

[0030] In an embodiment, as shown in Figure 3 As shown, the electric energy supply assembly 3 comprises a storage battery 8 and a solar cell panel 35, the storage battery 8 can be arranged in a separate space outside the heat insulation box 1, and the solar cell panel 35 is electrically connected with the storage battery 8, so that the electric energy converted by the solar cell panel 35 can be stored in the storage battery 8. The storage battery 8 and the solar cell panel 35 are connected with the electric equipment through a conversion device, the conversion device can switch the connection between the storage battery 8, the solar cell panel 35 and the electric equipment, so that the solar power supply or the storage battery 8 power supply can be selected according to the needs, the dependence on the storage battery 8 can be reduced, and the solar energy can be reasonably utilized.

[0031] The electric energy supply assembly 3 of the present application comprises the storage battery 8 and the solar cell panel 35, the solar cell panel 35 can be used to supply electric energy when the sun is sufficient, and the storage battery 8 can be used to supply electric energy when the sun is insufficient, so that the portable constant-temperature medicine box with the three-in-one of the solar photovoltaic power supply, the active refrigeration of the refrigeration device 21 and the passive heat dissipation of the heat pipe 4 is formed, and the problems of the traditional refrigeration equipment, such as strong dependence on external energy, short running time and inaccurate temperature control, are solved.

[0032] The application cooperates the heat insulation box body 1 of the multi-layer composite heat preservation material with the modular control system, so that the cold storage device can maintain the internal medicine storage temperature in the set interval under the condition of no external power supply, has high environmental adaptability, easy portability and sustainable operation capacity, and provides an effective solution for safe medicine storage and transportation in extreme areas.

[0033] In an embodiment, as shown in Figures 1-3 The electric energy supply assembly 3 further includes a light tracker 7 installed on the top of the heat insulation box body 1, and the moving end of the light tracker 7 is connected with a solar panel 35. The light tracker 7 can adjust the angle of the solar panel 35 in real time, so as to ensure that the solar panel 35 always maintains the optimal solar incidence angle, thereby maximizing the electric energy output.

[0034] In an embodiment, as shown in Figures 1-3 The light tracker 7 includes a bracket 31, a frame 32 and a glass cover plate 33. Two brackets 31 are installed on the two sides of the heat insulation box body 1, and the frame 32 is rotatably installed on the bracket 31 and supported by the bracket 31. The solar panel 35 is arranged in the frame 32, and the glass cover plate 33 covers the top of the frame 32. The frame 32 contains the solar panel 35 and protects the solar panel 35 as a whole after the glass cover plate 33 covers the frame 32, which can effectively transmit sunlight and prevent damage to the solar panel 35. The light tracker 7 further includes a rotary drive motor 34 for driving the frame 32 to rotate. When installed, the main body of the rotary drive motor 34 is installed on the bracket 31, and the output end of the rotary drive motor 34 is connected with the support shaft of the frame 32, thereby realizing rotary drive.

[0035] In an embodiment, as shown in Figure 3 The rotary drive motor 34 is electrically connected with a photosensitive sensor 36 arranged on the frame 32, which can receive light without obstruction and convert different light signals into corresponding electric signals. The rotary drive motor 34 adjusts the deflection angle of the frame 32 according to the electric signals of the photosensitive sensor 36, thereby realizing tracking of light.

[0036] In an embodiment, as shown in Figure 6 The light tracker 7 further includes a handle 5 installed on the two sides of the heat insulation box body 1. The handle 5 includes an extension table 51, two vertical rods 52 and a horizontal rod 53. The extension table 51 is installed on the heat insulation box body 1, the two vertical rods 52 are vertically installed on the extension table 51, and the horizontal rod 53 is arranged on the two vertical rods 52. The horizontal rod 53 serves as a hand holding structure, which can conveniently lift and move the entire heat insulation box body 1.

[0037] In an embodiment, a temperature-sensitive resistor 9 is further included and arranged in the storage cavity, and the temperature-sensitive resistor 9 is electrically connected to the controller 12, and the controller 12 is electrically connected to the refrigeration assembly 2, when the temperature of the storage cavity reaches a set threshold value, the controller 12 starts the refrigeration assembly 2 to cool down, and when the temperature of the storage cavity drops to a preset temperature range, the controller 12 reduces the rotating speed of the refrigeration fan 22 or closes the refrigeration device 21. By using the control system including the temperature-sensitive resistor 9 and the controller 12, a constant temperature system with sensitive response and closed-loop control can be formed, the system can monitor the internal temperature change in real time, and automatically switch the working mode according to the environmental and load conditions, so as to minimize the energy consumption and prolong the running time. The heat insulation box 1 can be further provided with a thermometer 13 to facilitate real-time display of the temperature of the storage cavity.

[0038] The comparison experiment data of the refrigeration storage device as the experimental group and the control group are as follows: The experimental group includes the heat insulation box 1 and the electric energy supply assembly 3, the refrigeration assembly 2 and the heat pipe 4. The control group only uses a common box.

[0039] Under the condition that the refrigeration assembly 2 of the experimental group is not started, the temperature of the box of the control group rapidly rises from 31℃ to 46.5℃, and the natural heat dissipation effect is limited, and it is difficult to effectively inhibit the temperature rise.

[0040] When the refrigeration assembly 2 of the experimental group is started, the temperature of the box of the control group further rises to 51.1℃, which indicates that the temperature of the box rises rapidly without refrigeration measures.

[0041] When the refrigeration assembly 2 of the experimental group is not started and only relies on the passive heat dissipation of the heat pipe 4, the temperature of the heat insulation box 1 rises to 42.5℃, compared with the control group (46.5℃), the heat pipe 4 significantly slows down the temperature rise speed, and exhibits good passive heat dissipation performance.

[0042] Under the synergistic action of the refrigeration assembly 2 and the heat pipe 4, the temperature of the heat insulation box 1 of the experimental group significantly drops from 42.5℃ to 32.7℃, which verifies the high-efficiency cooling capacity of the active and passive heat dissipation system of the present application under high-temperature conditions.

[0043] Reference Figure 7 As shown in the figure, the operation principle of the refrigeration storage device of the present application is as follows: The operation of the entire refrigeration storage device relies on an intelligent control system, which includes a temperature-sensitive resistor 9, a fixed resistor 10, an operational amplifier 11, and a controller 12. The temperature-sensitive resistor 9 is installed inside the storage cavity to detect the real-time temperature of the storage cavity. The temperature-sensitive resistor 9 reduces or increases its resistance value according to the temperature rise or fall of the storage cavity, and the generated electrical signal is transmitted to the operational amplifier 11 through a cable. The operational amplifier 11 processes the signal and transmits a high-level signal to the controller 12. The controller 12 controls the start or stop of the refrigeration assembly 2 according to the signal feedback from the temperature-sensitive resistor 9. When the temperature of the storage cavity reaches the set threshold, the semiconductor refrigeration sheet, the refrigeration fan 22, and the heat dissipation fan 24 are started. The cold end of the semiconductor refrigeration sheet generates cold energy, which is transported to the inside of the storage cavity by the refrigeration fan 22 to achieve the cooling effect, and the heat dissipation fan 24 is responsible for dissipating the heat generated by the hot end to improve the heat dissipation capacity of the hot end. When the temperature drops to the preset range, the controller 12 adjusts the speed of the refrigeration fan 22 or stops the operation of the semiconductor refrigeration sheet according to the temperature signal to prevent overcooling and optimize system energy consumption.

[0044] The refrigeration storage device of the present application is also equipped with multiple safety mechanisms, including when the temperature-sensitive resistor 9 detects that the temperature of the storage cavity is too low, the controller 12 will automatically turn off the refrigeration assembly 2 to prevent the temperature of the storage cavity from being too low and affecting the quality of the medicine. In addition, under long-term exposure to the sun and high-temperature environment, the passive heat dissipation of the heat pipe 4 combined with the active heat dissipation of the semiconductor refrigeration sheet realizes an efficient heat dissipation path, minimizing power consumption.

[0045] The refrigeration storage device of the present application realizes sustainable power supply through efficient energy conversion between the solar panel 35 and the storage battery 8, especially in the absence of external power supply, it can continuously cool. When the temperature of the storage cavity exceeds the set threshold, the controller 12 first starts the refrigeration fan 22 and the heat dissipation fan 24, and activates the semiconductor refrigeration sheet to start cooling. When the temperature gradually decreases, the speed of the refrigeration fan 22 is adjusted by the temperature signal detected by the temperature-sensitive resistor 9 to balance energy consumption. When the temperature of the storage cavity is at a low level, the power of the refrigeration fan 22 and the heat dissipation fan 24 is automatically reduced, and the work of the semiconductor refrigeration sheet is stopped.

[0046] The solar power supply method adopted by the present application not only solves the problem of energy supply in the wild, but also realizes a green refrigeration storage scheme driven by clean energy. The system does not need external power supply, and is suitable for deployment in remote, power shortage or post-disaster power outage scenes, greatly improving the safety and timeliness of medicine storage and transportation.

[0047] The application has the advantages of guaranteeing cold storage effect, reducing system energy consumption, improving portability, environmental adaptability and sustainable operation ability, and is suitable for various drug cold storage application scenes in high temperature environments such as military emergency, geological exploration, border garrison, disaster rescue and vaccine delivery, and has wide practical application prospect and industrialization value.

[0048] The principles and implementation manners of the present application are described by using specific examples in the present application, and the above examples are only used to help understand the method of the present application and its core idea; meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation manners and application ranges will be changed. In conclusion, the content of the present specification should not be understood as a limitation of the present application.

Claims

1. A cold storage storage device, characterized by, The application relates to a refrigeration device for a medicine storage box. The refrigeration device comprises a heat insulation box body, a storage cavity for storing medicines in the heat insulation box body, a refrigeration assembly, an electric energy supply assembly and a heat pipe. The refrigeration assembly comprises a refrigeration device and a refrigeration fan, the refrigeration end of the refrigeration device is located in the storage cavity, the refrigeration fan is located in the storage cavity, and the refrigeration fan is used for forming a convection in the storage cavity. The electric energy supply assembly is electrically connected with the refrigeration device and the refrigeration fan respectively, and is used for supplying electric energy for the operation of the refrigeration assembly. The heat pipe has an evaporation end located in the storage cavity and a condensation end located outside the heat insulation box body.

2. The cold storage device of claim 1, wherein: The refrigeration device adopts a semiconductor refrigeration sheet, the cold end of the semiconductor refrigeration sheet is located in the storage cavity, the hot end of the semiconductor refrigeration sheet is located outside the heat insulation box body, the refrigeration assembly further comprises a first fin connected with the cold end of the semiconductor refrigeration sheet, and the refrigeration fan is installed on the first fin.

3. The cold storage device of claim 2, wherein: The refrigeration assembly further comprises a second fin connected with the hot end of the semiconductor refrigeration sheet and a heat dissipation fan installed on the second fin and electrically connected with the electric energy supply assembly.

4. The cold storage device of claim 1, wherein: The application further comprises a heat conduction assembly comprising a first fixing seat, a second fixing seat and a spring.

5. The cold storage device of claim 1, wherein: The first fixing seat is installed on the inner top plate of the heat insulation box body, the second fixing seat is installed on the evaporation end of the heat pipe, the first end of the spring is abutted against the first fixing seat, and the second end of the spring is abutted against the second fixing seat.

6. The cold storage device of claim 1, wherein: The heat insulation box body adopts a cuboid structure, the refrigeration assembly is installed on the first side of the cuboid structure, and the heat pipe is installed on the second side of the cuboid structure opposite to the first side.

7. The cold storage device of claim 6, wherein: The electric energy supply assembly comprises a storage battery and a solar cell panel, the solar cell panel is electrically connected with the storage battery, the storage battery and the solar cell panel are connected with an electric equipment through a conversion device, and the conversion device is used for switching between storage battery power supply and solar cell panel power supply.

8. The cold storage device of claim 7, wherein: The electric energy supply assembly further comprises a light ray tracker installed on the top of the heat insulation box body, and the moving end of the light ray tracker is connected with the solar cell panel.

9. The cold storage device of claim 1, wherein: The light ray tracker comprises a bracket, a frame and a glass cover plate, two brackets are installed on the two sides of the heat insulation box body, the frame is rotatably installed on the bracket, the solar cell panel is arranged in the frame, the glass cover plate covers the top of the frame, and a rotating driving motor is further arranged. Handles installed on the two sides of the heat insulation box body are further provided, the handle comprises an extension table, a vertical rod and a horizontal rod, the extension table is installed on the heat insulation box body, the vertical rod is vertically installed on the extension table, and the horizontal rod is arranged on the vertical rod.

10. The cold storage device of claim 1, wherein: The temperature-sensitive resistor is arranged in the storage cavity, and the temperature-sensitive resistor is electrically connected with a controller, the controller is electrically connected with the refrigeration assembly, when the temperature of the storage cavity reaches a set threshold value, the controller starts the refrigeration assembly to cool down, and when the temperature of the storage cavity falls to a preset temperature range, the controller reduces the rotating speed of the refrigeration fan or closes the refrigeration device.

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