CN112173377A

CN112173377A - Transport packaging mechanism convenient for refrigeration

Info

Publication number: CN112173377A
Application number: CN202011198423.0A
Authority: CN
Inventors: 孙璐
Original assignee: Suzhou Chenshengyou Electromechanical Technology Co ltd
Current assignee: Suzhou Chenshengyou Electromechanical Technology Co ltd
Priority date: 2020-10-31
Filing date: 2020-10-31
Publication date: 2021-01-05
Anticipated expiration: 2040-10-31
Also published as: CN112173377B

Abstract

The transportation packaging mechanism convenient for refrigeration comprises a carrying container, wherein a heat transfer assembly is assembled on the carrying container, the heat transfer assembly comprises a phase-change material container, phase-change materials are filled in the phase-change material container, the phase-change material container is positioned in the carrying container, the heat transfer assembly is further provided with a thermoelectric refrigerating sheet, a temperature indicating device is further arranged on the heat transfer assembly, the transportation packaging mechanism convenient for refrigeration further comprises a heat insulation cover, the heat insulation cover can cover the whole heat transfer assembly and part of the carrying container, the optimal temperature can be maintained at 2-8 ℃, transportation can be safely and effectively carried, and refrigeration is low in cost.

Description

Transport packaging mechanism convenient for refrigeration

Technical Field

The invention relates to the field of transport packaging, in particular to a transport packaging mechanism convenient for refrigeration and an assembly process thereof.

Background

Refrigerated products such as foods, biological medicines and the like are special commodities which are very relevant to daily life and physical health of people, so that reasonable storage and use are very important, and particularly with the rapid development of food engineering and biological medicine supply industry, the support of related technologies is gradually increased in the industry, and the varieties needing refrigerated transportation are also increased year by year. The necessities such as refrigerated medicines belong to temperature-sensitive products, and the physical or chemical properties of the necessities are particularly susceptible to the change of the external environment temperature, so that the development of cold-chain logistics is not slow.

At present, the insulation boxes are used for refrigerated transportation, the cost is very expensive, for some remote areas, transportation needs to be carried out in a portable mode or a motorcycle mode due to the limitation of geographical conditions, however, the cost of the common insulation boxes is high, and the transportation is not suitable for relevant conditions, so that a novel low-cost transportation packaging mechanism convenient for refrigeration is needed, and the actual need is solved.

Disclosure of Invention

Accordingly, in view of the disadvantages in the related art, examples of the present invention are provided to substantially solve one or more problems due to limitations and disadvantages of the related art, to substantially improve safety and reliability, and to effectively protect equipment.

According to the technical scheme provided by the invention, the transportation packaging mechanism convenient for refrigeration comprises a carrying container, a plurality of hooks are arranged on the inner wall of the carrying container, a mesh bag is hung on each hook, elements needing refrigeration are arranged in the mesh bag, a heat transfer assembly is assembled on the carrying container and comprises a phase-change material container, phase-change materials are filled in the phase-change material container, the phase-change material container is positioned in the carrying container, a cooling plate is arranged above the phase-change material container, a cap cover is connected on the cooling plate, the cooling plate is accommodated in the cap cover and is in threaded connection with a container port of the carrying container, a square groove is arranged in the middle of the cap cover, a thermoelectric refrigerating sheet is embedded in the square groove, the cold surface of the thermoelectric refrigerating sheet is in contact with the cooling plate, a radiator is connected above the cap cover, the radiator comprises a radiating support, and a radiating fan and radiating fins are, still be equipped with protective sleeve on the cap, the radiator is located protective sleeve, still is equipped with temperature indicating device on the heat transfer assembly, and temperature indicating device suit still includes adiabatic cover in the week of cap in the transport packagine machine structure of being convenient for cold-stored, and adiabatic cover can cover whole heat transfer assembly and the part of carrying the thing container in it.

Furthermore, the temperature indicating device is communicated with a control system, the control system comprises a microcontroller, a temperature sensor and a rechargeable power supply, wherein the temperature sensor is positioned inside the object carrying container, the microcontroller is fixed on the cap, and the rechargeable power supply is fixed on the radiator; the temperature indicating device is an LED lamp strip which is controlled by a microcontroller, and the output signal is displayed by light with different colors according to the input signal of the temperature sensor.

Further, the phase-change material is prepared by the following preparation process: firstly, respectively removing water from polyvinylidene, diphenylmethylene sorbitol and graphene nano-plates in vacuum for 12 hours at the temperature of 40 ℃, 80 ℃ and 80 ℃; then, 2g of polyvinylidene is weighed in a beaker and heated for 5 minutes at 200 ℃ to be in a completely molten state; then, 7wt% of diphenylmethylene sorbitol is added, and the mixture is heated and stirred for 10 minutes by a magnet at the temperature of 250 ℃ until the mixture is completely melted, wherein the stirring speed is 60 rpm; then, 2wt% -8 wt% of graphene nano plates are added, and the graphene nano plates are heated and stirred for 30 minutes by magnets at 200 ℃ so as to be uniformly dispersed in the materials, wherein the stirring speed is 60 rpm; and finally, placing the processed material at room temperature to cool, and finishing the preparation.

Furthermore, a bottom sleeve is assembled below the phase-change material container, the cooling plate is made of aluminum alloy, heat conducting paste is arranged on two surfaces of the thermoelectric refrigerating piece, and the radiator is in contact with the hot surface of the thermoelectric refrigerating piece.

Further, the top of protective case still is equipped with the protection apron, is equipped with the locking groove on the protection apron, is equipped with the kayser on the inside top face of adiabatic cover, and the kayser can be assembled with locking groove.

Further, the heat insulation cover comprises a heat insulation shell, and an outer cover is arranged outside the heat insulation shell.

Further, the ratio of the diameter to the depth of the inner cavity of the carrying container is 1: 1.

further, the radiating fins are cylindrical pin fin type radiating fins.

Further, the cap cover is a double vacuum wall heat insulation cover.

The invention provides a transport packaging mechanism convenient for refrigeration, which comprises a carrying container, wherein a heat transfer assembly is assembled on the carrying container, the heat transfer assembly comprises a phase-change material container, the phase-change material container is filled with a phase-change material, the phase-change material container is positioned in the carrying container, the heat transfer assembly is also provided with a thermoelectric refrigerating sheet, the heat transfer assembly is also provided with a temperature indicating device, the transport packaging mechanism convenient for refrigeration further comprises a heat insulation cover, and the heat insulation cover can cover the whole heat transfer assembly and part of the carrying container in the heat insulation cover, so that the optimal temperature can be maintained at 2-8 ℃, the transport packaging mechanism can be safely and effectively transported, and is low in cost and convenient for refrigeration.

Drawings

Fig. 1 is an overall schematic view of the mechanism of the present invention.

Fig. 2 is a schematic view of the interior of the mechanism of the present invention.

Fig. 3 is a schematic diagram of the mechanism assembly of the present invention.

Fig. 4 is a schematic view of the mechanism assembly of the present invention.

Fig. 5 is a schematic view of the cargo container of the present invention.

Fig. 6 is a schematic view of the carrier container of the present invention.

FIG. 7 is a schematic view of an edge heat transfer assembly of the present invention.

FIG. 8 is a detailed schematic view of the heat transfer assembly of the present invention.

FIG. 9 is a schematic view of the heat transfer assembly of the present invention.

FIG. 10 is a schematic view of the heat transfer assembly of the present invention assembled.

FIG. 11 is a schematic view of an insulating enclosure of the present invention.

FIG. 12 is a schematic view of the assembly of the heat shield of the present invention.

Fig. 13 is a schematic view of the phase change material container assembly of the present invention.

Fig. 14 is a schematic view of the phase change material container assembly of the present invention.

Fig. 15 is a schematic view of a protective sleeve of the present invention.

Fig. 16 is a schematic view of the protective cover plate of the present invention.

Detailed Description

The present invention will be further described with reference to the following specific examples.

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to these embodiments are included in the scope of the present invention. The application of the principles of the present invention will be further described with reference to the accompanying drawings and specific embodiments.

The transportation packaging mechanism convenient for refrigeration has wide application and is particularly suitable for biomedical products. Taking biological vaccines as an example, vaccines are always a class of medicines which are required to be transported for tracking the temperature of the environment at the earliest time and are difficult to operate in medicine logistics, the operation difficulty of the vaccines is determined to be far higher than that of foods due to the characteristics of the vaccines, the storage and transportation temperature of the vaccines is 2-8 ℃, the temperature range is small, the lower temperature limit is close to the freezing point, the operation risk is high in the temperature range, once the vaccines are frozen due to low temperature, the vaccines can be effective, and when the vaccines are exposed to the environment above 8 ℃, the higher the exposure temperature is, the faster the effective time of the vaccines is shortened, so that the hardware requirements on the packaging and transportation of the vaccines are high.

For the transport packaging unit of the invention which is easy to refrigerate and which comprises a carrier container 1, the carrier container 1 of the invention is a vacuum insulated metal flask for storing and transporting vaccines, the assembly needs to be sufficiently insulated and reliable due to the temperature sensitivity of the vaccine, and the invention chooses a vacuum sealed metal flask instead of other types of insulating material because it is very effective in limiting heat transfer. Be equipped with a plurality of couple on the inner wall of carrying thing container 1, the preferred six and through epoxy glue with six couples adhesion to the inside of carrying thing container 1 apart from bottom 8cm height, hang on every couple and be equipped with the pocket, six evenly spaced hooks use with the pocket combination, the pocket can be used for loading the bacterin, can fix the bacterin in carrying thing container 1 with the form of range in order, around the central distribution of system.

It is particularly emphasized that the heat transfer assembly 2 is mounted on the payload container 1.

Specifically, the heat transfer component 2 comprises a phase change material container 2-1, the phase change material container 2-1 is filled with a phase change material, and the phase change material container 2-1 is located in the carrying container 1.

Phase change material PCM, a high technological material, refers to a substance whose physical properties can change with a change in temperature and which can provide latent heat. The process of the change in physical properties is called a phase change process, and the phase change material at this stage will release or absorb a large amount of latent heat. The specific phase change process is as follows: when the phase change temperature is lower than the ambient temperature, the material absorbs and stores heat to reduce the ambient temperature; when the phase transition temperature is higher than the ambient temperature, the material will release the previously stored heat again, raising the ambient temperature. The energy stored by the material through phase change is called latent heat energy storage. Compared with sensible heat energy storage, the phase change energy storage has high energy storage density, constant temperature control and obvious energy-saving effect, and the range of phase change temperature selection is wider than that of sensible heat energy storage.

For the invention, the phase-change material is prepared by the following preparation process: firstly, respectively removing water in vacuum for 12 hours from polyvinylidene (specifically polyvinylidene 800), diphenylmethylene sorbitol and graphene nano-plates at the temperature of 40 ℃, 80 ℃ and 80 ℃; then, 2g of polyvinylidene 800 is weighed into a beaker and heated at 200 ℃ for 5 minutes to reach a completely molten state; then, 7wt% of diphenylmethylene sorbitol is added, and the mixture is heated and stirred for 10 minutes by a magnet at the temperature of 250 ℃ until the mixture is completely melted, wherein the stirring speed is 60 rpm; then, 2wt% -8 wt% (preferably 4wt% or 6wt%) of graphene nano-plates are added, and the graphene nano-plates are heated and stirred for 30 minutes by a magnet at 200 ℃ so as to be uniformly dispersed in the material, wherein the stirring speed is 60 rpm; and finally, placing the processed material at room temperature to cool, and finishing the preparation.

The cooling plate 2-2 is arranged above the phase change material container 2-1, the cooling plate 2-2 is made of an aluminum plate, specifically an aluminum alloy, has excellent thermal conductivity, can assist in heat removal, and can assist in the freezing of the PCM along with the radial absorption of heat along with the temperature reduction, and after the PCM is frozen, the PCM can serve as a 'cold and hot battery' of the system. The "cold-hot battery" maintains the internal temperature of the cargo container 1 at the desired temperature of 4.5 ℃. The cooling plate 2-2 is connected with a cap 2-3, wherein the cap 2-3 accommodates the cooling plate 2-2 therein and is in threaded connection with a container port of the object carrying container 1, the cap 2-3 realizes the packaging function of the container port of the object carrying container 1, a square groove is arranged in the middle of the cap 2-3, and a thermoelectric refrigerating piece 2-4 is embedded in the square groove.

It should be noted that the thermoelectric cooling fins 2-4 of the present invention utilize peltier effect, have a hot side and a cold side, are a solid-state active heat pump, and utilize electric energy to achieve the required cooling effect, when the current direction flows from a hole semiconductor, i.e., a type semiconductor, to an electron semiconductor, i.e., a type semiconductor, the temperature at the junction rises and heat is released; on the contrary, the junction temperature decreases and absorbs heat from the outside. The reason is that: the type semiconductor has excess electrons, negative temperature difference potential, insufficient electrons and positive temperature difference potential. When electrons pass from the type semiconductor to the type semiconductor through the junction, the energy thereof is inevitably increased, and the increased energy corresponds to the energy consumed by the junction, i.e., the junction temperature is decreased. In contrast, when electrons flow from the type semiconductor to the type semiconductor, the junction temperature increases.

And the two surfaces of the thermoelectric refrigerating sheets 2-4 are respectively provided with heat conducting paste, the cold surface of the thermoelectric refrigerating sheets 2-4 is contacted with the cooling plate 2-2, the radiator 2-5 is contacted with the hot surface of the thermoelectric refrigerating sheets 2-4 and is arranged between the radiator 2-5 and the cooling plate 2-2, so that the heat efficiency is improved to the maximum extent, and the inner cavity of the carrying container 1 is effectively cooled to 4.5 ℃.

For the present invention, when the thermoelectric cooling fins 2-4 are not used, the PCM in the container will slowly absorb heat, that is, it absorbs the heat energy transferred into the chamber, and even when melted, the PCM can maintain the internal temperature of the cargo container 1.

The cap 2-3 may serve as the basis for the overall heat transfer assembly and the cap 2-3 may preferably be a double vacuum wall insulating cover, which greatly reduces convective and conductive heat transfer through the cover, which will prolong the time of the refrigeration unit during transport.

One of the important aspects of the refrigeration mechanism of the present invention is that the refrigeration mechanism is used for dissipating heat from the hot side of the thermoelectric cooling fins 2-4, and if heat cannot be dissipated quickly enough, the thermoelectric cooling fins 2-4 may be short-circuited or inefficient. If the thermoelectric refrigerating chips 2-4 cannot work normally, the phase-change material cannot be frozen, and the vaccine can also deteriorate. A combined system using a fan and heat sink is an effective and suitable system for this design.

The service cycle of the device is further prolonged, the cap 2-3 is further provided with the protective sleeve 2-6, the radiator 2-5 is located in the protective sleeve 2-6, the protective cover plate is further assembled above the protective sleeve 2-6 and is provided with a locking groove, meanwhile, in order to further improve the stability and the refrigeration effect of the whole mechanism, the transportation packaging mechanism convenient for refrigeration further comprises a heat insulation cover 4, the heat insulation cover 4 can cover the whole heat transfer assembly 2 and part of the carrying container 1 in the heat insulation cover 4, the heat insulation cover 4 comprises a heat insulation shell, an outer cover is further arranged outside the heat insulation shell, a clamping lock is arranged on the top plate face inside the heat insulation shell of the heat insulation cover 4, and when the heat insulation cover is assembled, the clamping lock can be assembled with the locking groove, so that the heat insulation cover 4 is stably connected.

The ideal temperature is kept as a key component in the transportation packaging mechanism convenient for refrigeration, the heat transfer component 2 is further provided with a temperature indicating device 3 for indicating the temperature conveniently, the temperature indicating device 3 is sleeved on the periphery of the cap 2-3, the temperature indicating device 3 is an LED lamp strip, and the state of the refrigeration mechanism can be known by an end user from any angle by combining the configuration of a 360-degree indicating lamp.

Specifically, the temperature indicating device 3 is communicated with a control system, the control system comprises a microcontroller (e.g. Arduino Nano), a temperature sensor with a waterproof function, a rechargeable power supply and a wire, the connection mode is not described herein as a known technology, wherein the temperature sensor is located inside the carrying container 1, the microcontroller is fixed on the cap 2-3, the rechargeable power supply is fixed on the heat sink 2-5, the LED strip is controlled by the microcontroller, the output signal is displayed by different colors of light, such as bright red, green or blue light, when the temperature inside the carrying container 1 is 2 ℃ or lower, the signal of the microcontroller is output to light the LED strip with blue, if the temperature inside the chamber is 3 to 6 ℃, the microcontroller outputs and sends out a green signal to the LED strip, green indicates that the vaccine is at the optimal temperature, the end user does not need to take any measures, when the internal temperature reaches 7 ℃, the microcontroller activates the LED strip in red to indicate to the user that the vaccine is about to reach the upper limit temperature, when the internal temperature reaches 8 ℃ and above, the red ring of the LED will start to pulse, the end user will generate a sense of urgency, and once the upper limit is exceeded 8 ℃, and the red LED strip is lit for more than 10 minutes, the vaccine will lose efficacy.

The invention further discloses an assembly process of the transport packaging mechanism convenient for refrigeration, and specifically, the assembly process of the transport packaging mechanism convenient for refrigeration comprises the following steps:

A. placing the elements to be refrigerated into mesh bags inside the carrying container;

B. filling 200mL of phase change material into a phase change material container, winding a plurality of sealing adhesive tapes at the internal thread position of the port of the phase change material container, and plugging the port of the phase change material container by using a sealing plugging block;

C. welding the cooling plate with a port of the phase-change material container;

D. connecting the cooling plate to the inner upper surface of the cap using a fastener;

E. adding heat-conducting paste to the cold and hot surfaces of the thermoelectric refrigeration piece, then placing the thermoelectric refrigeration piece in the square groove of the cap, and enabling the thermoelectric refrigeration piece to be attached to the upper surface of the cooling plate;

F. fixing the micro-controller on the upper surface of the cap, penetrating the temperature sensor into the carrying container through the cap, and attaching the temperature sensor to the inner wall of the carrying container by using an adhesive tape;

G. extending the phase-change material container into the carrying container, and connecting the cap with the port of the carrying container in a threaded manner;

H. attaching a heat sink over the cap using a fastener and securing the rechargeable battery to the heat sink;

I. connecting the protective sleeve to the cap cover to enable the radiator and the rechargeable battery to be located in the protective sleeve, and assembling the protective cover plate on the protective sleeve;

J. fitting a temperature indicating device on a circumferential direction of the cap;

K. and sleeving the heat insulation cover on the assembled heat transfer assembly, so that the lock is matched with the locking groove to finish assembly.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The transportation packaging mechanism convenient for refrigeration comprises a carrying container (1), wherein a plurality of hooks are arranged on the inner wall of the carrying container (1), mesh bags are hung on each hook, elements needing refrigeration are arranged in the mesh bags, the transportation packaging mechanism is characterized in that a heat transfer component (2) is assembled on the carrying container (1), the heat transfer component (2) comprises a phase-change material container (2-1), phase-change materials are filled in the phase-change material container (2-1), the phase-change material container (2-1) is positioned in the carrying container (1), a cooling plate (2-2) is arranged above the phase-change material container (2-1), and a cap cover (2-3) is connected onto the cooling plate (2-2), wherein the cap (2-3) accommodates the cooling plate (2-2) therein and is in threaded connection with a container port of the object carrying container (1), a square groove is arranged in the middle of the cap (2-3), a thermoelectric refrigerating sheet (2-4) is embedded in the square groove, wherein a cold surface of the thermoelectric refrigerating sheet (2-4) is in contact with the cooling plate (2-2), the radiator (2-5) is connected above the cap (2-3), the radiator (2-5) comprises a radiating bracket, a radiating fan and radiating fins are arranged on the radiating bracket, a protective sleeve (2-6) is further arranged on the cap (2-3), and the radiator (2-5) is positioned in the protective sleeve (2-6), the heat transfer assembly (2) is further provided with a temperature indicating device (3), the temperature indicating device (3) is sleeved on the circumferential direction of the cap cover (2-3), the transportation packaging mechanism convenient for refrigeration further comprises a heat insulation cover (4), and the heat insulation cover (4) can cover the whole heat transfer assembly (2) and part of the carrying container (1) in the heat insulation cover.

2. A transport packaging unit for facilitating cold storage according to claim 1, c h a r a c t e r i z e d in that said temperature indicating means (3) is in communication with a control system comprising a micro-controller, a temperature sensor, a rechargeable power supply, wherein said temperature sensor is located inside said carrier container (1), said micro-controller is fixed to said cap (2-3), and said rechargeable power supply is fixed to said heat sink (2-5); the temperature indicating device (3) is an LED lamp strip, the LED lamp strip is controlled by the microcontroller, and output signals are displayed by lamplight with different colors according to input signals of the temperature sensor.

3. A transport packaging unit as claimed in claim 1 wherein the phase change material is prepared by a process comprising: firstly, respectively removing water from polyvinylidene, diphenylmethylene sorbitol and graphene nano-plates in vacuum for 12 hours at the temperature of 40 ℃, 80 ℃ and 80 ℃; then, 2g of polyvinylidene is weighed in a beaker and heated for 5 minutes at 200 ℃ to be in a completely molten state; then, 7wt% of diphenylmethylene sorbitol is added, and the mixture is heated and stirred for 10 minutes by a magnet at the temperature of 250 ℃ until the mixture is completely melted, wherein the stirring speed is 60 rpm; then, 2wt% -8 wt% of graphene nano plates are added, and the graphene nano plates are heated and stirred for 30 minutes by magnets at 200 ℃ so as to be uniformly dispersed in the materials, wherein the stirring speed is 60 rpm; and finally, placing the processed material at room temperature to cool, and finishing the preparation.

4. A transport packaging mechanism convenient for cold storage as claimed in claim 1, wherein a bottom cover is assembled under the phase change material container (2-1), the cooling plate (2-2) is made of aluminum alloy, heat conducting paste is arranged on both sides of the thermoelectric cooling plate (2-4), and the heat radiator (2-5) is in contact with the hot surface of the thermoelectric cooling plate (2-4).

5. A transport packaging unit for facilitating cold storage as claimed in claim 1, c h a r a c t e r i z e d in that the protective sleeves (2-6) are also provided with a protective cover plate, the protective cover plate is provided with locking slots, and the top panel inside the heat insulating cover (4) is provided with locking latches which can be fitted with the locking slots.

6. A transport packaging unit for facilitating cold storage according to claim 1, c h a r a c t e r i z e d in that the insulation cover (4) comprises an insulation shell, outside which an outer cover is provided.

7. A transport packaging unit for easy refrigeration as claimed in claim 1, characterized in that the ratio of diameter to depth of the inner chamber of the payload container (1) is 1: 1.

8. a transport packaging unit as claimed in claim 1, and further characterised in that said fins are cylindrical pin fin fins.

9. A transport packaging unit for facilitating cold storage as claimed in claim 1, wherein said cap (2-3) is a double vacuum wall insulating cover.

10. A method of assembling a packer assembly of a cold-facilitated transport packer as claimed in any one of claims 1 to 9, wherein the assembly process includes the steps of:

A) placing the elements to be refrigerated into mesh bags inside the carrying container;

B) filling 200mL of phase change material into a phase change material container, winding a plurality of sealing adhesive tapes at the internal thread position of the port of the phase change material container, and plugging the port of the phase change material container by using a sealing plugging block;

C) welding the cooling plate to a port of the phase change material container;

D) connecting the cooling plate to the inner upper surface of the cap using a fastener;

E) adding heat conducting paste on the cold and hot surfaces of the thermoelectric refrigeration piece, then placing the thermoelectric refrigeration piece in the square groove of the cap cover, and enabling the thermoelectric refrigeration piece to be attached to the upper surface of the cooling plate;

F) fixing the micro controller on the upper surface of the cap, penetrating the temperature sensor into the carrying container through the cap, and attaching the temperature sensor to the inner wall of the carrying container by using an adhesive tape;

G) extending the phase change material container into the carrying container, and connecting the cap with the port of the carrying container in a threaded manner;

H) attaching a heat sink over the cap using a fastener and securing the rechargeable battery to the heat sink;

I) connecting the protective sleeve to the cap cover so that the radiator and the rechargeable battery are positioned in the protective sleeve, and then assembling the protective cover plate on the protective sleeve;

J) assembling the temperature indicating device on the circumference of the cap;

K) and sleeving the heat insulation cover on the assembled heat transfer assembly so that the latch lock is matched with the locking groove to finish assembly.