A phase change heat storage module filling device and a phase change heat storage medium filling method

Abstract

The application relates to the technical field of phase change heat storage, in particular to a phase change heat storage module filling device and a phase change heat storage medium filling method, which comprise a vibrating mechanism used for placing and driving the vibration of an encapsulation container; and a first heating module arranged on the outer wall of the vibrating mechanism or in the vibrating mechanism and used for heating the encapsulation container. The first heating module provides a hot environment for the encapsulation container to be filled and continuously heats the encapsulation container to be filled, so that the filled paraffin is not easy to solidify, and the filling efficiency is improved. The vibrating mechanism is used for placing and carrying the encapsulation container and can drive the vibration of the encapsulation container. The vibrating mechanism continuously vibrates the encapsulation container during the filling process, so that the paraffin can be filled into the encapsulation container more quickly and uniformly, the filling efficiency is improved, and the performance of the encapsulation container after filling is improved.

Description

Technical Field

[0001] This invention relates to the field of phase change thermal energy storage technology, and in particular to a phase change thermal energy storage module filling device and a phase change thermal energy storage medium filling method. Background Technology

[0002] Phase change media (PCMs) possess high latent heat of phase change and suitable operating temperatures. They are chemically stable, economical, and readily available, making them widely used in PCM thermal containers for electronic devices. PCMs maintain the temperature of electronic components within their phase change temperature range, delay the rate of temperature rise, improve the resistance of electronic components to high-load thermal shock, and ensure stable and reliable operation of electronic equipment. A sealed container is required to hold the PCM to prevent it from flowing out and contaminating the equipment after temperature rise, thus ensuring its continued usability.

[0003] When filling a phase change medium into a packaging container, the phase change medium needs to be heated to a molten state to facilitate filling the packaging container. The phase change medium filled into the packaging container first will form a "phase change medium film" on the inner wall. Due to the poor heat transfer performance of the phase change medium, the phase change heat storage medium filled later is not easy to heat and may even solidify, resulting in low filling efficiency of the phase change medium. Summary of the Invention

[0004] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide a phase change thermal storage module filling device and a phase change thermal storage medium filling method to solve the problems of poor filling effect and low filling efficiency of phase change thermal storage medium in the prior art.

[0005] To achieve the above and other related objectives, the present invention provides a phase change thermal storage module filling device, wherein the phase change thermal storage module includes a phase change thermal storage medium and a packaging container for containing the phase change thermal storage medium, comprising:

[0006] A vibration mechanism for placing the packaging container and driving the packaging container to vibrate;

[0007] The first heating module is disposed on the outer wall of the vibration mechanism or inside the vibration mechanism, and is used to heat the packaging container.

[0008] Optionally, the phase change thermal storage module filling device further includes a funnel for filling the packaging container with the phase change thermal storage medium.

[0009] Optionally, the phase change thermal storage module filling device further includes a second heating module for heating the funnel, the second heating module being fitted over the funnel.

[0010] Optionally, the first heating module includes a temperature chamber or a heating table.

[0011] Optionally, the vibration mechanism includes an ultrasonic vibration mechanism or a vibration table.

[0012] The present invention also provides a method for filling a phase change thermal storage medium, using the phase change thermal storage module filling device described above, comprising:

[0013] The powdered phase change thermal storage medium is filled into the encapsulation container while the vibration mechanism is turned on, so that the powdered phase change thermal storage medium in the encapsulation container is uniformly filled under the vibration of the vibration mechanism.

[0014] Once the powdered phase change thermal storage medium fills the encapsulation container, the first heating module is activated to heat the encapsulation container, causing the powdered phase change thermal storage medium to melt.

[0015] After the powdered phase change thermal storage medium is completely melted, the first heating module and the vibration mechanism are turned off. After the melted powdered phase change thermal storage medium cools down and solidifies, the above steps are repeated until the remaining space in the packaging container can no longer hold more powdered phase change thermal storage medium.

[0016] Optionally, after repeating the above steps until the remaining space inside the encapsulation container can no longer hold more powdered phase change thermal storage medium, the process further includes:

[0017] If there is still space in the filling port of the encapsulation container, continue to add molten phase change heat storage medium to fill the encapsulation container;

[0018] Seal the filling port.

[0019] Optionally, after the remaining space within the encapsulation container can no longer hold more powdered phase change thermal storage medium, the process further includes:

[0020] Add thermally conductive particles into the packaging container.

[0021] Optionally, the thermally conductive particles include graphite particles, metal particles, nanoparticles, and nanofibers.

[0022] Optionally, the phase change thermal storage medium includes organic solid phase change thermal storage medium and inorganic solid phase change thermal storage medium.

[0023] As described above, the phase change thermal energy storage module filling device of the present invention has the following beneficial effects:

[0024] The first heating module provides a thermal environment for the packaging containers to be filled and continuously heats them, preventing the paraffin wax from solidifying and improving filling efficiency. The vibration mechanism is used to place and support the packaging containers and can drive them to vibrate. By continuously vibrating the packaging containers during the filling process, the vibration mechanism allows the paraffin wax to be poured into the containers faster and more evenly, improving not only filling efficiency but also the performance of the packaged containers after filling. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention;

[0026] Figure 2 This is a front view of an embodiment of the present invention.

[0027] Part Number Explanation

[0028] 1-Vibration mechanism; 2-Fixing fixture; 3-Function funnel; 4-Second heating module; 5-Encapsulation container; 100-First heating module. Detailed Implementation

[0029] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0030] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show components relevant to the present invention and are not drawn according to the actual number, shape, and size of components in implementation. In actual implementation, the form, quantity, and proportion of each component can be arbitrarily changed, and the component layout may be more complex. The structures, proportions, sizes, etc., depicted in the accompanying drawings are only for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation conditions of the present invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effects and objectives of the present invention, should still fall within the scope of the technical content disclosed in the present invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are only for clarity of description and are not intended to limit the scope of the present invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the present invention.

[0031] Please see Figure 1 and Figure 2 This embodiment provides a phase change thermal storage module filling device. The phase change thermal storage module includes a phase change thermal storage medium and a packaging container for containing the phase change thermal storage medium. The phase change thermal storage module filling device is used to fill the packaging container 5 with the phase change thermal storage medium, which is a phase change thermal storage medium existing in the prior art. The phase change thermal storage module filling device includes a first heating module 100 and a vibration mechanism 1. The first heating module 100 is disposed on the top surface of the vibration mechanism 1, that is, between the vibration mechanism 1 and the packaging container 5. The first heating module 100 can also be disposed inside the vibration mechanism 1. The first heating module 100 is used to heat the packaging container 5 to be filled, so that the phase change thermal storage medium is not easy to solidify, thereby improving the filling efficiency. The vibration mechanism 1 is used to place and support the packaging container 5 to be filled and drive the packaging container 5 to vibrate. The packaging container 5 is fixedly disposed on the vibration mechanism 1, and the vibration mechanism 1 is provided with fixing clamps 2 for fixing the packaging container 5. The fixing clamps 2 are disposed on two opposite corners of the packaging container 5. The vibration mechanism 1 continuously vibrates the packaging container 5 during the phase change thermal storage medium filling process, enabling the phase change thermal storage medium to be filled into the packaging container 5 faster and more evenly. This not only improves filling efficiency but also enhances the performance of the packaging container 5 after filling. Simultaneously, the packaging container 5 is horizontally positioned above the first heating module 100, which covers the entire bottom of the packaging container 5, increasing the heated area and further improving filling efficiency.

[0032] In one implementation, such as Figure 1 and Figure 2 As shown, the phase change thermal storage module filling device also includes a funnel 3 for filling the encapsulation container 5 with the phase change thermal storage medium. The top of the encapsulation container 5 has a filling port through which the phase change thermal storage medium is filled. Because encapsulation and sealing are required after filling, the size of the filling port is relatively small, making filling difficult and inefficient. The funnel 3 is inserted into the filling port, and filling is carried out through the funnel 3, improving filling efficiency and preventing the phase change thermal storage medium from flowing onto the outer shell of the encapsulation container 5, which would be difficult to clean.

[0033] In one implementation, such as Figure 1 and Figure 2 As shown, the phase change thermal storage module filling device also includes a second heating module 4 for heating the funnel 3, which is fitted over the funnel 3. The second heating module 4 includes heating plates arranged in a cone shape, which can accelerate the melting of the phase change thermal storage medium entering the funnel 3 and improve filling efficiency.

[0034] In one implementation, such as Figure 1 and Figure 2As shown, there are multiple funnels 3, each corresponding to a filling port of the packaging container 5. The packaging container 5 has multiple filling ports, allowing for simultaneous filling and improving filling efficiency.

[0035] In one embodiment, the first heating module 100 includes a heating chamber or heating platform to ensure the melting of the phase change heat storage medium. Specifically, the first heating module 100 may be a heating chamber or heating platform disposed outside the vibration mechanism.

[0036] In one embodiment, the vibration mechanism 1 and the first heating module 100 can be integrated into one design. The first heating module 100 includes a heating pad and is integrated into the top surface of the vibration mechanism 1. Alternatively, the surface of the vibration mechanism, which is also the mounting surface of the packaging container, is made of a thermally conductive material such as metal, and the first heating module 100 can be integrated into the interior of the vibration mechanism 1.

[0037] In one embodiment, the vibration mechanism 1 includes an ultrasonic vibration mechanism or a vibration table.

[0038] In one embodiment, heating pads may also be provided on each side of the packaging container 5 to improve the heating effect of the packaging container 5.

[0039] This embodiment also provides a method for filling phase change thermal storage medium, including:

[0040] The powdered phase change thermal storage medium is filled into the encapsulation container 5 and the vibration mechanism 1 is turned on at the same time, so that the powdered phase change thermal storage medium in the encapsulation container 5 is uniformly filled under the vibration of the vibration mechanism. Uniform filling means that the powdered phase change thermal storage medium is evenly distributed in the horizontal direction in the encapsulation container 5, so as to improve the filling speed of the phase change thermal storage medium.

[0041] When the powdered phase change thermal storage medium fills the encapsulation container 5, the first heating module 100 is turned on to heat the encapsulation container 5, causing the powdered phase change thermal storage medium to melt.

[0042] After the powdered phase change thermal storage medium is completely melted, the first heating module 100 and the vibration mechanism 1 are turned off. After the melted powdered phase change thermal storage medium cools down and solidifies, the above steps are repeated until the remaining space in the encapsulation container 5 can no longer hold more powdered phase change thermal storage medium.

[0043] Because phase change thermal storage media have low thermal conductivity and poor heat transfer performance during the phase change process, the molten phase change thermal storage media, after being poured into the packaging container 5, flows downwards along the inner wall of the packaging container 5 and accumulates at the bottom. This causes the continuously flowing phase change thermal storage media to be separated by the phase change thermal storage media film already formed on the inner wall of the packaging container 5, making it difficult for the heat from the first heating module 100 to penetrate into the packaging container 5. This results in slow flow of the phase change thermal storage media inside the packaging container 5 and easy solidification, affecting the filling efficiency. The above method continuously heats the packaging container 5 and continuously vibrates it during the filling of phase change thermal storage media, ensuring that the phase change thermal storage media does not solidify and improving the filling efficiency. It also ensures uniform filling into the packaging container 5, improving the performance of the packaging container 5 after filling.

[0044] By employing a method of filling and then solidifying powdered phase change thermal storage medium, compared to the traditional method of directly pouring molten phase change thermal storage medium into the encapsulation container 5, a better filling effect is achieved, and it is applicable to various encapsulation container designs. The main reason is that with traditional filling methods, the molten liquid phase change thermal storage medium flows by capillary action or gravity, making it difficult to fully fill the encapsulation container 5, which has a complex three-dimensional structure. With the first heating module 100 and the vibration mechanism 1 working together, the encapsulation container 5 can be driven to vibrate, ensuring thorough filling with the powdered phase change thermal storage medium and also heating the medium. This not only improves filling efficiency but also enhances the performance of the encapsulation container 5 after filling. Furthermore, by using the phase change thermal storage module filling device, good heating effects can be achieved for encapsulation containers 5 of different designs, as long as they are in a horizontal position. This method is more efficient and has a wide range of applications. In contrast, traditional filling methods require the encapsulation container to be in an upright position using gravity, necessitating customized heating devices for different encapsulation container designs, resulting in high filling costs.

[0045] In one embodiment, after repeating the above steps until the remaining space inside the encapsulation container can no longer hold more powdered phase change thermal storage medium, the method further includes:

[0046] If there is still empty space near the filling port of the packaging container 5, continue to add molten phase change heat storage medium to fill the packaging container 5, or add powdered phase change heat storage medium from the funnel 2 and turn on the second heating module 4 to heat it. The powdered phase change heat storage medium is heated and melted by the second heating module 4 and flows into the packaging container 5 to fill the packaging container 5.

[0047] Seal the filling port.

[0048] In one embodiment, after the remaining space within the encapsulation container 5 can no longer hold more powdered phase change thermal storage medium, the process further includes:

[0049] Add thermally conductive particles into the encapsulation container 5.

[0050] The thermally conductive particles are existing technologies. They are added into the encapsulation container 5 according to heat dissipation requirements. The first heating module 100 and the vibration mechanism 1 work together. Under heating and vibration conditions, the filling efficiency and thorough mixing of the phase change thermal storage medium and the thermally conductive particles are ensured, guaranteeing the performance of the encapsulation container 5. The stepwise filling of the phase change thermal storage medium and the thermally conductive particles solves the problem of external clumping, making filling difficult, while ensuring smooth filling. Traditional filling methods do not include vibration. Due to the unequal density of the thermally conductive particles and the phase change thermal storage medium, the thermally conductive particles are prone to aggregation, making it difficult to achieve a dispersed distribution of the particles within the phase change thermal storage medium, resulting in poor thermal conductivity.

[0051] In one embodiment, the addition of heat-conducting particles includes: adding the particles into the encapsulation container 5 through a funnel 3 under heating and vibration; while maintaining vibration, after the heat-conducting particles are uniformly dispersed in the molten phase change heat storage medium, turning off the heating and simultaneously increasing cooling to rapidly cool the molten phase change heat storage medium in the encapsulation container 5, allowing the heat-conducting particles to be uniformly dispersed in the solidified phase change heat storage medium, and then turning off the vibration. The weight of the added heat-conducting particles is calculated based on the actual heat dissipation requirements. Specifically, the ratio of the weight of the heat-conducting particles to the weight of the phase change heat storage medium is designed and calculated based on the requirements for heat storage, heat conduction, and weight. Higher specific gravity of the heat-conducting particles results in better thermal conductivity and heat dissipation performance, but a decrease in phase change heat storage performance; conversely, lower specific gravity of the heat-conducting particles results in relatively poor thermal conductivity, but an increase in phase change heat storage performance.

[0052] In one embodiment, the thermally conductive particles include graphite particles, metal particles, nanoparticles, and nanofibers. These particles have good thermal conductivity, which improves the overall performance of the encapsulation container 5.

[0053] In one embodiment, the phase change thermal storage medium includes organic solid phase change thermal storage medium and inorganic solid phase change thermal storage medium, such as mixed nitrate.

[0054] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A method for filling a phase change thermal storage medium, using a phase change thermal storage module filling device, characterized in that, include: The powdered phase change thermal storage medium is filled into the encapsulation container while the vibration mechanism is turned on, so that the powdered phase change thermal storage medium in the encapsulation container is uniformly filled under the vibration of the vibration mechanism. Once the powdered phase change thermal storage medium fills the encapsulation container, the first heating module is activated to heat the encapsulation container, causing the powdered phase change thermal storage medium to melt. After the powdered phase change thermal storage medium is completely melted, the first heating module and the vibration mechanism are turned off. After the melted powdered phase change thermal storage medium cools down and solidifies, the above steps are repeated until the remaining space in the packaging container can no longer hold more powdered phase change thermal storage medium. After repeating the above steps until the remaining space inside the encapsulation container can no longer hold more powdered phase change thermal storage medium, the process further includes: If there is still space inside the filling port of the encapsulation container, continue to add molten phase change heat storage medium to fill the encapsulation container; then seal the filling port. The phase change thermal storage module includes a phase change thermal storage medium and a packaging container for containing the phase change thermal storage medium. The phase change thermal storage module filling device includes: A vibration mechanism for placing the packaging container and driving the packaging container to vibrate; The first heating module is disposed on the outer wall of the vibration mechanism or inside the vibration mechanism, and is used to heat the packaging container; The phase change thermal storage module filling device also includes a funnel for filling the packaging container with the phase change thermal storage medium; The phase change thermal storage module filling device further includes a second heating module for heating the funnel, the second heating module being fitted over the funnel.

2. The phase change thermal storage medium filling method according to claim 1, characterized in that, After the remaining space within the encapsulation container can no longer hold more powdered phase change thermal storage medium, the process further includes: Add thermally conductive particles into the packaging container.

3. The phase change thermal storage medium filling method according to claim 2, characterized in that, The thermally conductive particles include graphite particles, metal particles, nanoparticles, and nanofibers.

4. The phase change thermal storage medium filling method according to claim 1, characterized in that, The phase change thermal storage medium includes organic solid phase change thermal storage medium and inorganic solid phase change thermal storage medium.

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