Field heat preservation box and heat preservation method thereof

Abstract

The invention belongs to the technical field of liquid heat preservation, and relates to a field heat preservation box and a heat preservation method thereof. Comprising a box body, a refrigerating system is arranged in a functional area on the lower portion of the box body, a storage area and a heating system containing area are arranged above the functional area, the heating system containing area is located on one side of the storage area, a heating system is arranged in the heating system containing area, and an electronic control system is further arranged in the box body. The electronic control system adjusts the temperature by controlling the refrigerating system and the heating system and keeps the temperature within a constant range. The requirements for low-temperature storage, transportation and normal-temperature heat preservation use of liquid medicine or blood can be met, the temperature control range is 2-40 DEG C, and the temperature of the storage space can be effectively adjusted and controlled and kept constant.

Description

Technical Field

[0001] The invention belongs to the technical field of heat preservation, and relates to a field heat preservation box and a heat preservation method thereof. Background Art

[0002] Infusion is a very important part of emergency treatment and surgical operations for the wounded. How to achieve temperature control and thermal insulation storage of liquid medicines and blood in the field without supporting environment is an important problem. Traditional temperature control and thermal insulation storage of liquid medicines and blood are usually carried out in hospitals and other places with external environmental support, but the field environment often lacks external conditions and can usually only meet the requirements of low-temperature storage and transportation of liquid medicines or blood. It cannot meet the requirements of providing liquid medicines or blood with suitable temperature for the wounded who need infusion by keeping the heated liquid medicines or blood warm.

[0003] The main components of today's mainstream blood (drug) liquid incubators include an insulated box, a refrigeration system, a temperature control system, etc., which can usually only achieve low-temperature storage and transportation of liquid medicines and blood. It does not have the functions of heat preservation and temperature regulation of heated liquid medicines or blood, as well as temperature control and heat preservation storage at different temperatures. It cannot meet the complex and harsh environmental conditions in the field. Summary of the invention

[0004] The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art and to provide a field insulation box and an insulation method thereof.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A field incubator comprises a box body and a control system for controlling the temperature of the box body, wherein a refrigeration system is arranged in a functional area at the lower part of the box body, a storage area and a heating system placement area are arranged above the functional area, the heating system placement area is located on one side of the storage area, and the storage area and the heating system placement area are isolated from each other; a cold air discharge channel is arranged between the functional area and the heating system placement area; a heating system is arranged in the heating system placement area, and the electronic control system adjusts the temperature by controlling the refrigeration system and the heating system and keeps the temperature within a constant range;

[0007] A box cover is arranged above the storage area, and the storage area and the box cover are connected via a first hinge.

[0008] Furthermore, the heating system includes a first evaporator and a first circulation fan. A heating wire is wound around the first evaporator. A first circulation fan is arranged on one side of the first evaporator, and hot air is discharged into the storage area through the first circulation fan.

[0009] Furthermore, the refrigeration system includes a second evaporator, a compressor, a condenser, and a condensing fan. The compressor is connected to the condenser through an exhaust pipe, the condenser is connected to the throttling device through a first pipe, the throttling device is connected to the tubular evaporator through a second pipe, and the condensing fan is located on one side of the condenser. The high temperature inside the condenser is discharged to the outside of the box through the condensing fan.

[0010] Furthermore, the electronic control system includes a control panel and a control center. The control panel is arranged on the outer surface of the box, and the target temperature data is input through the control panel; the control center is located behind the control panel.

[0011] Furthermore, the box body is made of waterproof rotational molding material, and a rubber pad is arranged at the bottom of the box body.

[0012] Furthermore, the constant range is 2°C to 40°C.

[0013] Furthermore, the electronic control system also includes a temperature sensor, through which temperature information is transmitted to the electronic control system in real time.

[0014] Furthermore, a handle is provided on the box cover.

[0015] Furthermore, the electronic control system compares the real-time temperature data with the target temperature data, and controls the refrigeration system or the heating system to operate according to the comparison result.

[0016] The present invention also provides a heat preservation method for a field heat preservation box, which is specifically:

[0017] When the temperature sensor senses that the temperature of the storage area is greater than the set temperature data, the refrigeration system starts to refrigerate, and when the temperature of the storage area reaches the set temperature data, the electronic control system enters the standby insulation mode;

[0018] When the temperature sensor senses that the temperature of the storage area is lower than the set temperature data, the heating system starts heating, and when the temperature of the storage area reaches the set temperature data, the electronic control system enters the standby insulation mode.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. Temperature control range that meets the needs: There are two working modes: cooling and heating, which can meet the requirements of low-temperature storage, transportation and room temperature insulation of liquid medicines or blood. The temperature control range is 2 to 40°C, which can effectively adjust, control and maintain a constant temperature of the storage space.

[0021] 2. High efficiency of cooling and heating: Due to the use of miniaturized compressor cooling system and heating system, the cooling and heating efficiency can be significantly improved, and the heating and cooling speeds are fast.

[0022] 3. Accurate temperature control performance: Due to the use of intelligent electronic control system, the intelligence and precision of temperature control can be significantly improved, and the storage space temperature can be kept within a constant range according to instructions. The temperature control accuracy is high and the storage space temperature uniformity is good.

[0023] 4. Excellent environmental adaptability: Since the blood (drug) liquid insulation box body is made of rotational molding material and the insulation layer is made of polyurethane foam material, the insulation box's environmental adaptability such as resistance to high and low temperatures, humidity and heat, salt spray, as well as its impact resistance and vibration resistance can be significantly improved, and it can also have good thermal insulation performance.

[0024] 5. Simplify operation and maintenance: Due to the use of isolation mechanism, the working space is independent, which avoids cross contamination, improves the convenience and speed of operation, simplifies the maintenance and repair procedures, and reduces the cost and difficulty of maintenance and repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are incorporated in and constitute a part of this specification and, together with the description, serve to explain the principles of the present invention.

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0027] Figure 1 It is a front view of the outdoor thermal insulation box of the present invention;

[0028] Figure 2 It is a left side view of the outdoor thermal insulation box of the present invention;

[0029] Figure 3 It is a rear view of the outdoor thermal insulation box of the present invention;

[0030] Figure 4 It is a right side view of the outdoor thermal insulation box of the present invention;

[0031] Figure 5 It is a cutaway view of the outdoor heat preservation box of the present invention;

[0032] Figure 6 A top view of the outdoor thermal insulation box of the present invention;

[0033] Figure 7 A bottom view of the outdoor thermal insulation box of the present invention;

[0034] Figure 8 It is the working principle diagram of the outdoor heat preservation box in the present invention.

[0035] Among them: 1 is the box body; 1.1 is the functional area; 1.2 is the storage area; 1.3 is the box cover; 2 is the refrigeration system; 2.1 is the condensing fan; 2.2 is the condenser; 2.3 is the compressor; 3 is the heating system; 3.1 is the evaporator; 3.2 is the circulation fan; 4 is the electronic control system; 5 is the second hinge; 6 is the first hinge; 7 is the control panel. DETAILED DESCRIPTION

[0036] Here, exemplary embodiments will be described in detail, and the embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Instead, they are only examples of devices consistent with some aspects of the present invention as detailed in the appended claims.

[0037] Example

[0038] like Figures 1 to 8 As shown, a heat preservation box for outdoor use comprises a box body 1 and a control system 4 for controlling the temperature of the box body, a refrigeration system 2 is arranged in a functional area 1.1 at the lower part of the box body 1, a storage area 1.2 and a heating system placement area are arranged above the functional area 1.1, the heating system placement area is located on one side of the storage area 1.2, and the storage area 1.2 and the heating system placement area are isolated from each other; a cold air discharge channel is arranged between the functional area and the heating system placement area; a heating system 3 is arranged in the heating system placement area, and the electronic control system 4 adjusts the temperature by controlling the refrigeration system 2 and the heating system 3 and keeps the temperature within a constant range;

[0039] A box cover 1.3 is arranged above the storage area 1.2, and the storage area 1.2 and the box cover 1.3 are connected via a first hinge 6.

[0040] Furthermore, the heating system 3 comprises a first evaporator 3.1 and a first circulation fan 3.2, wherein a heating wire is wound around the first evaporator 3.1, and a first circulation fan 3.2 is arranged on one side of the first evaporator 3.1, and hot air is discharged into the storage area 1.2 through the first circulation fan 3.2. The heating system is a PTC heating system.

[0041] In this embodiment: the heating wire is a low-temperature silicone heating wire, which is wound around the pipeline of the evaporator 3.1. After the heating wire is energized, the surface will generate a temperature of about 70°C and transfer the temperature to the pipeline of the evaporator 3.1 to increase the heat exchange area. The circulating fan 3.2 installed at the front end of the evaporator 3.1 circulates the hot air and discharges it into the storage area 1.2, thereby achieving the purpose of increasing the internal temperature of the storage area 1.2.

[0042] Furthermore, the refrigeration system 2 includes a second evaporator, a compressor 2.3, a condenser 2.2, and a condensing fan 2.1. The compressor 2.3 is connected to the condenser 2.2 through an exhaust pipe, the condenser 2.2 is connected to the throttling device through a first pipe, the throttling device is connected to the tubular evaporator through a second pipe, and the condensing fan 2.1 is located on one side of the condenser 2.2. The high temperature inside the condenser 2.2 is discharged to the outside of the box 1 through the condensing fan 2.1.

[0043] In this embodiment, the refrigeration process of the refrigeration system 2 includes the following processes:

[0044] 1. Inhalation: After the compressor 2.3 is powered on, the internal motor of the compressor 2.3 drives the rotor inside the compressor 2.3 to rotate, generating negative pressure and sucking in the low-temperature and low-pressure refrigerant gas at the bottom of the compressor 2.3.

[0045] 2. Compression: The compressor 2.3 compresses the sucked refrigerant gas into a high-temperature and high-pressure gas, thereby increasing the pressure of the refrigerant gas.

[0046] 3. Condensation: The high-temperature and high-pressure refrigerant gas releases heat through the condenser 2.2 and is cooled into liquid. The high temperature inside the condenser 2.2 is discharged to the outside of the cabinet 1 through the condensing fan 2.1.

[0047] 4. Expansion: The liquid refrigerant passes through the capillary throttling and becomes a low-pressure and low-temperature refrigerant gas, which enters the tubular evaporator. The cold air inside the tubular evaporator is circulated and blown into the box body 1 through the second circulation fan, thereby achieving the purpose of lowering the temperature inside the box.

[0048] Furthermore, the electronic control system 4 includes a control panel 7 and a control center. The control panel 7 is arranged on the outer surface of the box 1, and the target temperature data is input through the control panel 7; the control center is located behind the control panel 7.

[0049] The buttons / keys on the control panel 7 include: a main power button, a data button, a switch button, a cooling / heating button, a setting button, a normal temperature button, and a refrigeration button.

[0050] The control panel 7 is provided with a display screen, through which the temperature is displayed in real time.

[0051] like Figure 8As shown, the control panel 7 is provided with a power button, which can be pressed and held to control the power on and off of the machine, or the power on and off of each subsystem can be controlled according to the settings; the control panel 7 can display and output, and is displayed through a 4-digit digital tube. It displays ON when it is turned on, and the temperature in the box will be displayed in normal status. The setting interface will display the temperature setting and time setting interface; the control panel is provided with a system heating indicator light and a system cooling indicator light. For data import, a red light will be displayed when the import starts, a green light will be displayed when the import is successful, and all lights will go out when the import is not successful or the U disk recognition fails; the electronic control system 4 is provided with a buzzer, which will emit a short buzzer when pressing a button or turning the machine on and off, and a long buzzer when a new fault occurs in the equipment; the system can export the data stored in the FLASH to the U disk according to the protocol, and the data includes time, Temperature and fault code data; the electronic control system is equipped with a temperature control module. The temperature control module has insulation and refrigeration functions, and controls the temperature difference at ±2°C. The evaporator 3.1 fan is turned on with a delay of 1 minute. The temperature control module mainly controls the temperature sensor, the temperature inside the box and the ambient temperature. In insulation mode, the temperature is kept at 30°C, and in refrigeration mode, the temperature is kept at 4°C; for the setting button, long press to display the setting interface, and short press to turn the setting interface and display the non-setting interface, and the ambient temperature and the set temperature appear in the non-setting interface; for the up button, long press to display the setting interface-quickly adjust parameters, the non-setting interface is the insulation mode, and short press to adjust parameters; for the down button, long press to display the setting interface-quickly adjust parameters, the non-setting interface is the refrigeration mode, and short press to adjust parameters; export button, long press to export.

[0052] Furthermore, the box body 1 is made of waterproof rotational molding material, and a rubber pad is arranged at the bottom of the box body 1.

[0053] Furthermore, the constant range is 2°C to 40°C.

[0054] In addition, the present invention also provides a heat preservation method for an outdoor heat preservation box, wherein the electronic control system 4 compares the real-time temperature data with the target temperature data, and controls the refrigeration system 2 or the heating system 3 to operate according to the comparison result.

[0055] Further, specifically:

[0056] When the temperature sensor senses that the temperature of the storage area 1.2 is greater than the set temperature data, the refrigeration system 2 starts refrigeration, and when the temperature of the storage area 1.2 reaches the set temperature data, the electronic control system 4 enters the standby insulation mode;

[0057] When the temperature sensor senses that the temperature of the storage area 1.2 is lower than the set temperature data, the heating system 3 starts heating, and when the temperature of the storage area 1.2 reaches the set temperature data, the electronic control system 4 enters the standby heat preservation mode.

[0058] Furthermore, when the refrigeration system 2 starts to refrigerate, the high-temperature and high-pressure gas discharged from the compressor 2.3 flows to the condenser 2.2 through the exhaust pipe, and the medium-temperature and high-pressure liquid refrigerant cooled in the condenser 2.2 flows to the throttling device through the liquid pipe for throttling and pressure reduction. The refrigerant after pressure reduction by the throttling device enters the evaporator through the pipeline, and the cold air inside the evaporator is circulated by the circulating fan and blown into the inside of the box 1, thereby reducing the temperature inside the box 1.

[0059] Furthermore, when the heating system 3 starts heating, the heating wire generates heat after being energized and conducts the heat to the evaporation pipeline, and the circulation fan circulates and discharges the hot air into the box body 1, thereby increasing the temperature inside the box body 1.

[0060] In this embodiment, the electronic control system 4 includes: MCU main control circuit, power management circuit, key display control circuit, data reading circuit, relay control circuit, temperature sampling calculation circuit, electromagnetic compatibility circuit, system control software, etc.

[0061] Working principle of electronic control system: compare the temperature of storage area 1.2 calculated by MCU system software according to the sampling data of temperature sensor and the temperature value set by the user input by key 7 of control panel and stored in the internal memory of the system, and instruct compressor 2.3 cooling system or heating system to work according to the result of temperature value comparison. The specific control process is as follows:

[0062] 1. Refrigeration---When the temperature of storage area 1.2 exceeds the set temperature set on control panel 7 by 2°C, the software system instructs the compressor drive board to output DC three-phase power to provide power for the compressor through the relay control circuit, and the system software controls the compressor 2.3 to start with variable frequency, and the speed of the motor inside the compressor 2.3 gradually reaches 100% from 0% within 1 minute, and the compressor 2.3 enters the full-load working state, and the refrigeration system starts to refrigerate, and the second circulation fan and the condensing fan 2.1 start the air circulation work in the box. When the temperature of storage area 1.2 reaches the set temperature, the software system instructs the compressor 2.3 drive control board to stop providing DC three-phase power output to the compressor 2.3, and the refrigeration system 2 and the fan stop working, and the system enters the standby insulation stage. When the temperature of storage area 1.2 exceeds the set temperature set on control panel 7 by 2°C (that is, the temperature of storage area 1.2-the set temperature = 2°C), the refrigeration system starts to start again, with the purpose of always keeping the temperature at the set temperature (within 2°C).

[0063] 2. Heating - When the temperature of the box 1 is 2°C lower than the ambient temperature, the software system connects the power supply of the heating wire and the circulating fan through the relay control circuit. The heat generated by the heating wire is discharged into the inside of the box 1. When the temperature inside the box reaches the set temperature, the heating system stops working and the system enters the standby insulation stage. When the temperature of the storage area 1.2 is 2°C lower than the set temperature set on the control panel 7 (that is, the set temperature - the temperature of the storage area 1.2 = 2°C), the heating system starts again, with the aim of always keeping the temperature at the set temperature (within 2°C).

[0064] Data reading circuit: Through the data reading button on the control panel 7 and the waterproof USB interface, the information stored in the MCU main control board, such as the box temperature, ambient temperature and system fault code sampled and stored every 5 minutes, can be read out and decoded with dedicated host computer software, so that users can view the historical working status of the equipment.

[0065] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention.

[0066] It should be understood that the present invention is not limited to what has been described above and that various modifications and changes may be made without departing from its scope. The scope of the present invention is limited only by the appended claims.

Claims

1. A heat preservation box for outdoor use, characterized in that: The invention comprises a box (1) and a control system (4) for controlling the temperature of the box, wherein a refrigeration system (2) is arranged in a functional area (1.1) at the lower part of the box (1), a storage area (1.2) and a heating system placement area are arranged above the functional area (1.1), the heating system placement area is located on one side of the storage area (1.2), and the storage area (1.2) and the heating system placement area are isolated from each other; a cold air discharge channel is arranged between the functional area and the heating system placement area; a heating system (3) is arranged in the heating system placement area, and the electronic control system (4) adjusts the temperature by controlling the refrigeration system (2) and the heating system (3) and keeps the temperature within a constant range; A box cover (1.3) is arranged above the storage area (1.2), and the storage area (1.2) and the box cover (1.3) are connected via a first hinge (6).

2. A field insulation box according to claim 1, characterized in that: The heating system (3) comprises a first evaporator (3.1) and a first circulation fan (3.2); a heating wire is wound around the first evaporator (3.1); a first circulation fan (3.2) is arranged on one side of the first evaporator (3.1); and hot air is discharged into the storage area (1.2) through the first circulation fan (3.2).

3. A field insulation box according to claim 1, characterized in that: The refrigeration system (2) comprises a second evaporator, a compressor (2.3), a condenser (2.2), and a condensing fan (2.1); the compressor (2.3) is connected to the condenser (2.2) via an exhaust pipe; the condenser (2.2) is connected to a throttling device via a first pipeline; the throttling device is connected to a tubular evaporator via a second pipeline; the condensing fan (2.1) is located on one side of the condenser (2.2); and the high temperature inside the condenser (2.2) is discharged to the outside of the box (1) via the condensing fan (2.1).

4. The outdoor thermal insulation box according to claim 1, characterized in that: The electronic control system (4) comprises a control panel (7) and a control center. The control panel (7) is arranged on the outer surface of the box (1), and target temperature data is input through the control panel (7). The control center is located behind the control panel (7).

5. The outdoor heat preservation box according to claim 1, characterized in that: The box body (1) is made of waterproof roto-molded material, and a rubber pad is arranged at the bottom of the box body (1).

6. The outdoor heat preservation box according to claim 1, characterized in that: The constant range is 2°C to 40°C.

7. The outdoor heat preservation box according to claim 1, characterized in that: The electronic control system (4) also includes a temperature sensor, through which temperature information is transmitted to the electronic control system in real time.

8. The outdoor heat preservation box according to claim 1, characterized in that: The box cover (1.3) is provided with a handle.

9. A method for heat preservation of a field heat preservation box as claimed in claims 1 to 8, characterized in that: The electronic control system (4) compares the real-time temperature data with the target temperature data, and controls the refrigeration system (2) or the heating system (3) to operate according to the comparison result.

10. A heat preservation method for a field heat preservation box according to claim 9, characterized in that: Specifically: When the temperature sensor senses that the temperature of the storage area (1.2) is greater than the set temperature data, the refrigeration system (2) starts refrigeration, and when the temperature of the storage area (1.2) reaches the set temperature data, the electronic control system (4) enters a standby heat preservation mode; When the temperature sensor senses that the temperature of the storage area (1.2) is lower than the set temperature data, the heating system (3) starts heating, and when the temperature of the storage area (1.2) reaches the set temperature data, the electronic control system (4) enters a standby heat preservation mode.

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