Filtering and concentrating process of heat-conducting pouring sealant

Abstract

The invention provides a heat-conducting pouring sealant filtering and concentrating process, and relates to the technical field of heat-conducting pouring sealant treatment.The heat-conducting pouring sealant filtering and concentrating process comprises the steps that a concentrating tank with an opening in the top and a filtering tank with an opening in the top are prepared, a discharging port and a discharging valve are arranged on the concentrating tank, and a plurality of filtering holes are formed in the side wall of the filtering tank; the filtering tank is concentrically arranged in the concentration tank, the tops are flush, a sealing cover is arranged between openings in the tops of the filtering tank and the concentration tank to form a closed hollow shell structure, and the vertical section of the internal space of the closed hollow shell structure is U-shaped; a heating mechanism and a piston ring are arranged in the empty shell structure, the piston ring is movably sealed and hooped outside the filter tank, the outer side wall is attached to the inner side wall of the concentration tank, a through hole is formed in the sealing cover, and the piston ring is lifted by a rope. According to the process, efficient filtration and concentration of the heat-conducting pouring sealant are realized, meanwhile, the heat sensitivity characteristic of the heat-conducting pouring sealant is protected, the energy consumption is reduced, and the product quality and the production efficiency are improved.

Description

Technical Field

[0001] The invention relates to the technical field of heat-conducting potting glue processing, in particular to a filtering and concentrating process of heat-conducting potting glue. Background Art

[0002] In the field of electronic packaging, thermal conductive potting glue is a key material widely used in the packaging, fixing and protection of various electronic components. Its main function is to provide excellent thermal conductivity and mechanical strength, ensuring that electronic components can effectively dissipate heat during operation, thereby extending service life and improving reliability. However, thermal conductive potting glue often faces a series of technical challenges during production and use.

[0003] First, since the viscosity of thermal conductive potting glue is high and it contains a certain amount of impurities and particles, these impurities will not only affect the thermal conductivity of the glue, but may also block the tiny channels of the device during the packaging process, resulting in poor heat dissipation or packaging failure. Therefore, efficient filtering of thermal conductive potting glue to remove impurities and particles is a key step to ensure its stable performance and reliable application.

[0004] Secondly, as a heat-sensitive glue, thermal conductive potting glue is prone to chemical decomposition at high temperatures, resulting in performance degradation or failure. The traditional concentration process often needs to be carried out at a higher temperature, which not only damages the performance of the glue, but also increases energy consumption and production costs. Therefore, how to protect the heat-sensitive properties of thermal conductive potting glue and avoid performance loss while concentrating it has become an urgent problem to be solved.

[0005] In addition, the concentration process of thermal conductive potting glue also needs to consider its heating uniformity and concentration efficiency. Traditional concentration equipment often has problems such as uneven heating and low concentration efficiency, which leads to local overheating or insufficient temperature of the glue during the concentration process, affecting the concentration effect and product quality. Therefore, developing a process method that can achieve efficient and uniform concentration of thermal conductive potting glue is of great significance to improving product quality and production efficiency. Summary of the invention

[0006] The invention provides a filtering and concentrating process for a thermally conductive potting adhesive, which realizes efficient filtration and concentration of the thermally conductive potting adhesive through a unique structural design and process flow, while protecting its heat-sensitive properties, reducing energy consumption, and improving product quality and production efficiency.

[0007] The above technical purpose of the present invention is achieved through the following technical scheme: A filtration and concentration process of a thermally conductive potting glue, comprising the following steps: A concentration tank with an opening on the top and a filtering tank with an opening on the top are prepared, the concentration tank is provided with a discharge port and a discharge valve, and a plurality of filtering holes are opened on the side wall of the filtering tank; Place the filter tank concentrically in the concentration tank, ensure that the tops are flush, and set a cover between the top openings of the two to form a closed hollow shell structure, the vertical section of the internal space of which is in the shape of a "concave"; A heating mechanism and a piston ring are arranged in the hollow shell structure, a movable sealing hoop of the piston ring is arranged outside the filtering tank, the outer wall is attached to the inner wall of the concentration tank, a through hole is arranged on the sealing cover, and the piston ring is suspended by a rope; A pulley and a telescopic mechanism are fixed directly above the concentration tank. The rope passes over the pulley and is connected to the plug. The plug faces the filter tank and can be sealed and inserted. The telescopic mechanism is connected to the top of the plug. Inject thermal conductive potting glue into the filter tank, start the heating mechanism to heat it, and control the plug through the telescopic mechanism to squeeze the thermal conductive potting glue from the filter hole into the concentration tank to achieve filtration and concentration; Finally, open the discharge valve to discharge the finished product through the discharge port.

[0008] In some embodiments, the inner wall of the concentration tank is covered with evenly distributed and tightly fitted heat conductive sheets.

[0009] In some embodiments, the inner bottom surface of the concentration tank is provided with a slope inclined toward the discharge port.

[0010] In some embodiments, the filter hole is trumpet-shaped, with the end with a larger opening facing the inside of the filter tank and the end with a smaller opening facing the outside of the filter tank.

[0011] In some embodiments, before injecting the thermal conductive potting glue into the filter tank, it is first subjected to degassing and homogenization treatments, including placing it in a vacuum degassing device to remove bubbles and volatile components, and performing mechanical stirring and shearing through a homogenization treatment device.

[0012] In some embodiments, the thermally conductive potting compound that has completed the filtering and concentration process is tested, including appearance inspection, thermal conductivity test, mechanical property test, high and low temperature resistance test, and electrical property test.

[0013] In some embodiments, the filter tank and the filter holes are cleaned, and the specific steps are to cover the outer surface of the plug with a cloth bag with a brush, and use a telescopic mechanism to drive the plug to move repeatedly for brushing.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention combines and complements the filtering process and the concentration process. Through the unique structural design, the plunger moves downward during the filtering process, resulting in a decrease in the air pressure in the concentration tank, thereby achieving decompression and concentration of the thermally conductive potting glue. At the same time, the filtering process causes the thermally conductive potting glue to be dispersed and sprayed out, which is accelerated and heated evenly, which is conducive to accelerating the concentration process. In addition, during the decompression process of the concentration tank, a huge pressure difference is formed between the concentration tank and the filter tank. This pressure difference not only enables the thermally conductive potting glue in the filter tank to enter the concentration tank more easily and avoid clogging of the filter holes, but also significantly increases the initial injection velocity of the thermally conductive potting glue after entering the concentration tank, making its distribution more dispersed, and further promoting its concentration by heating. In general, the present invention achieves efficient filtration and concentration of the thermally conductive potting glue, while protecting its heat-sensitive characteristics, reducing energy consumption, and improving product quality and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the present invention before adding heat-conducting potting glue into the filter tank; Figure 2 for Figure 1 A magnified view of point A; Figure 3 It is a schematic diagram of the present invention after the heat-conducting potting glue is added into the filter tank; Figure 4 It is a schematic diagram of the present invention when the plug is extended into the filter tank and the bottom end of the plug just contacts the liquid surface of the heat-conducting potting glue; Figure 5 It is a schematic diagram of the present invention when the plug is extended into the filter tank and squeezes the heat-conductive potting glue in the filter tank; Figure 6 The present invention is a schematic diagram of the filtering and concentration of the thermally conductive potting glue.

[0016] In the figure: 100, thermal conductive potting glue; 1, concentration tank; 2, cover; 3, through hole; 4, discharge port; 5, discharge valve; 6, filter tank; 7, filter hole; 8, heating mechanism; 9, piston ring; 10, rope; 11, pulley; 12, plug; 13, telescopic mechanism. DETAILED DESCRIPTION

[0017] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0018] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0020] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] like Figure 1-6 As shown, this embodiment provides a filtering and concentrating process for thermally conductive potting glue, comprising the following steps: A concentration tank 1 and a filter tank 6 with an opening at the top are prepared respectively, a discharge port 4 is provided on the concentration tank 1, a discharge valve 5 is provided at the discharge port 4, and a plurality of filter holes 7 are provided on the side wall of the filter tank 6; The filter tank 6 is concentrically arranged inside the concentration tank 1, ensuring that the tops of the two are flush, and a cover 2 is arranged between the top openings of the two. At this time, the concentration tank 1, the filter tank 6 and the cover 2 together form a closed hollow shell structure, and the vertical section of the internal space of the hollow shell structure is in the shape of a "concave"; A heating mechanism 8 and a piston ring 9 are arranged in the hollow shell structure, and a movable sealing hoop of the piston ring 9 is arranged outside the filter tank 6, and the outer wall of the piston ring 9 is movably sealed and attached to the inner wall of the concentration tank 1, and then a through hole 3 is opened on the cover 2, and the piston ring 9 is lifted by a rope 10, and the rope 10 is passed through the through hole 3 and extended upward; A pulley 11 and a telescopic mechanism 13 are fixedly arranged above the concentration tank 1, the number of which is the same as that of the ropes 10. The ropes 10 are passed around the pulleys 11 one by one, so that the ropes 10 are turned to extend downward. Then, a plug 12 is arranged at the end of the rope 10 extending downward, ensuring that the plug 12 faces the filter tank 6 and can be sealed and inserted into the filter tank 6 until the filter tank 6 is completely filled. Then, the movable end of the telescopic mechanism 13 is connected to the top of the plug 12. The thermally conductive potting glue 100 is injected into the filter groove 6. Due to the existence of surface tension, the thermally conductive potting glue 100 will not actively leak out from the filter hole 7 (such as Figure 3 As shown), the heating mechanism 8 is then started to heat the inside of the concentration tank 1, and the plug 12 is controlled by the telescopic mechanism 13 to extend into the filter tank 6 until the thermally conductive potting glue 100 in the filter tank 6 is squeezed out from each filter hole 7 into the concentration tank 1 (as shown). Figure 3-6 As shown), it plays a filtering role, and the heat conductive potting glue 100 dispersed and sprayed out at high speed through each filter hole 7 will be heated more evenly and heated faster, so that the heat conductive potting glue 100 can be concentrated efficiently, and during the downward movement of the plug 12, the piston ring 9 will be gradually pulled upward under the transmission action of the rope 10 and the pulley 11, and the air pressure in the concentration tank 1 will decrease accordingly. Since the air pressure in the filter tank 6 increases due to the squeezing of the plug 12, a huge pressure difference will be formed between the concentration tank 1 and the filter tank 6 during the period, and the pressure difference makes the heat conductive potting glue 100 in the filter tank 6 more easily enter the concentration tank 1, avoiding the filter hole 7 from being blocked due to the accumulation and retention of the heat conductive potting glue 100, and the pressure difference also significantly increases the initial injection velocity of the heat conductive potting glue 100 after entering the concentration tank 1, so that the distribution of the heat conductive potting glue 100 can be more dispersed, which is conducive to its heat concentration; And for heat-sensitive glues such as thermal conductive potting glue 100, reduced pressure concentration is particularly important, mainly based on the following reasons: First, heat-sensitive glues are prone to chemical decomposition at high temperatures, resulting in performance degradation or failure. Reduced pressure concentration can achieve effective concentration at a relatively low temperature by reducing the pressure in the system, thereby avoiding or reducing thermal damage to the glue. Secondly, thermal conductive potting glue 100 usually needs to have good thermal conductivity and mechanical strength. Excessive temperature and pressure may destroy its molecular structure and affect these key properties. Reduced pressure concentration helps to process the glue under mild conditions, keeping its original properties intact. In addition, under reduced pressure, the boiling point of the solvent is reduced, so that the concentration process can be carried out at a lower temperature, which not only speeds up the concentration speed, but also reduces energy consumption. For materials such as thermal conductive potting glue 100 that require precise control of process conditions, reduced pressure concentration is an efficient and energy-saving option. Therefore, during the filtering of the thermal conductive potting glue 100, this process also reduces the atmospheric pressure at the place where the concentration occurs, thereby achieving the reduced pressure concentration of the thermal conductive potting glue 100, which has the comprehensive technical effects of significantly improving the concentration efficiency, protecting the glue performance, reducing energy consumption and accurately controlling the process conditions.

[0022] It should be noted that at least one filter hole 7 needs to be reserved above the initial liquid level of the thermally conductive potting glue 100 in the filter tank 6. That is to say, just after the thermally conductive potting glue 100 is injected into the filter tank 6, at least one filter hole 7 needs to be not submerged by the thermally conductive potting glue 100, so as to ensure that after the plug 12 is inserted into the filter tank 6 and before it contacts the liquid surface of the thermally conductive potting glue 100, the thermally conductive potting glue 100 will not be squeezed out of the filter tank 6 in advance due to the increase of the air pressure in the filter tank 6. During this period, the filter hole 7 not submerged by the thermally conductive potting glue 100 plays a role in maintaining the constant air pressure in the filter tank 6. During the period when the plug 12 is inserted into the filter tank 6 until it contacts the liquid surface of the thermally conductive potting glue 100, the air in the filter tank 6 is first squeezed into the concentration tank 1 through the filter hole 7 not submerged by the thermally conductive potting glue 100, and then discharged to the external environment through the through hole 3. During this period, the air pressure in the filter tank 6 is stable, and the thermally conductive potting glue 100 in the filter tank 6 will not be squeezed out of the filter tank 6.

[0023] Finally, after the filtered thermally conductive potting glue 100 is concentrated under reduced pressure in the concentration tank 1, the discharge valve 5 is opened to discharge the finished thermally conductive potting glue 100 out of the concentration tank 1 through the discharge port 4, thereby completing the filtering and concentration process of the thermally conductive potting glue.

[0024] The key to the present invention is to combine and complement the filtering process and the concentration process. Through the unique structural design, the plunger 12 moves downward during the filtering process, resulting in a decrease in the air pressure in the concentration tank 1, thereby achieving decompression and concentration of the thermally conductive potting glue 100. At the same time, the filtering process causes the thermally conductive potting glue 100 to be dispersedly sprayed out, which is accelerated and heated evenly, which is conducive to accelerating the concentration process. In addition, during the decompression process of the concentration tank 1, a huge pressure difference is formed between the concentration tank 1 and the filter tank 6. This pressure difference not only allows the thermally conductive potting glue 100 in the filter tank 6 to enter the concentration tank 1 more easily, avoiding clogging of the filter hole 7, but also significantly increases the initial injection velocity of the thermally conductive potting glue 100 after entering the concentration tank 1, making its distribution more dispersed, further promoting its concentration by heating.

[0025] In some embodiments, a plurality of heat-conducting sheets are laid on the inner wall of the concentration tank 1, and these heat-conducting sheets are evenly distributed and closely fit to the inner wall of the concentration tank 1 to enhance the heat transfer efficiency. The provision of the heat-conducting sheets significantly increases the heat conduction area of ​​the inner wall of the concentration tank 1, so that the heat generated by the heating mechanism 8 can be transferred to the heat-conducting potting glue 100 in the concentration tank 1 more quickly and evenly. This not only shortens the heating time, but also ensures the temperature uniformity of the heat-conducting potting glue 100 during the concentration process, avoids local overheating or insufficient temperature, thereby improving the concentration efficiency and product quality. And because the heat-conducting potting glue 100 is sensitive to temperature, local overheating may cause its performance to deteriorate or fail. The uniform distribution of the heat-conducting sheets effectively avoids the local accumulation of heat, ensures a more uniform temperature distribution in the entire concentration tank 1, and protects the heat-sensitive characteristics of the heat-conducting potting glue 100. In addition, the close fit between the heat-conducting sheet and the inner wall of the concentration tank 1 not only enhances the heat transfer effect, but also improves the structural strength of the concentration tank 1. Under high pressure or high temperature environment, the heat conductive sheet can play a certain supporting role, reduce the deformation of the inner wall of the concentration tank 1 due to thermal expansion and contraction, and extend the service life of the equipment.

[0026] In some embodiments, the inner bottom surface of the concentration tank 1 is provided with a slope inclined toward the discharge port 4. The slope design ensures that the thermally conductive potting glue 100 can flow smoothly to the discharge port 4 during the concentration process, thereby avoiding the retention and accumulation of glue at the bottom of the concentration tank 1. First, the slope design enables the concentrated thermally conductive potting glue 100 to flow naturally to the discharge port 4 by gravity, reducing the resistance during the discharge process, thereby improving the discharge efficiency. This helps to shorten the process flow and improve production efficiency. Secondly, due to the slope design, the thermally conductive potting glue 100 is not easily retained at the bottom of the concentration tank 1, reducing the amount of glue residue at the bottom of the tank. This not only helps to keep the concentration tank 1 clean, but also reduces the waste of raw materials and reduces production costs.

[0027] In some embodiments, Figure 2As shown, the filter hole 7 is trumpet-shaped, with the larger opening end facing the inside of the filter tank 6 and the smaller opening end facing the outside of the filter tank 6. Since the small opening end of the trumpet-shaped filter hole 7 faces the outside of the filter tank 6, the glue is subjected to a certain degree of squeezing and acceleration when passing through the filter hole 7, which helps to more effectively block impurities and particulate matter in the glue in the filter tank 6. This design enhances the filtering effect and improves the purity and quality of the finished thermal conductive potting glue 100. In addition, the design of the trumpet-shaped filter hole 7 helps to optimize the flow field distribution of the thermal conductive potting glue 100 during the filtering process. When the glue passes through the filter hole 7, due to the change in the hole shape, a certain eddy and turbulent effect will be generated, which helps to further improve the dispersion and heating uniformity of the glue, thereby optimizing the concentration effect.

[0028] In some embodiments, before injecting the thermal conductive potting glue 100 into the filter tank 6, the thermal conductive potting glue 100 is first subjected to a degassing treatment and a homogenization treatment in sequence, and the specific steps are as follows: First, the thermally conductive potting glue 100 is placed in a vacuum degassing device to remove bubbles and volatile components therein by vacuuming to ensure the uniformity and density of the colloid. This step can effectively avoid the blockage of the filter holes 7 by bubbles and the negative impact on the performance of the colloid during the subsequent filtration and concentration process, while improving the thermal conductivity and mechanical strength of the finished product.

[0029] Next, the deaerated thermally conductive potting glue 100 is passed through a homogenization treatment device, such as a high-speed disperser or a homogenizer, for strong mechanical stirring and shearing, so that the particles and components in the colloid are fully dispersed and evenly mixed. The homogenization treatment can not only further refine the particles in the colloid and improve the uniformity of the colloid, but also enhance the fluidity and filtration performance of the colloid, which is conducive to the removal of impurities in the subsequent filtration process and the smooth passage of the colloid through the filter hole 7.

[0030] By performing degassing and homogenizing treatments before injecting the thermal conductive potting glue 100 into the filter tank 6, the present invention not only improves the quality and purity of the finished product, but also optimizes the filtering effect, improves the concentration efficiency, and enhances the stability of the process. This design makes the entire thermal conductive potting glue filtering and concentration process more efficient, stable and reliable, and helps to meet the high-precision and high-quality production requirements.

[0031] In some embodiments, the filtering and concentrating process of the thermally conductive potting glue includes testing the thermally conductive potting glue 100 after the filtering and concentrating process, and the specific steps are as follows: First, the thermal conductive potting glue 100 after filtration and concentration is inspected for appearance, and its color, transparency, and presence of impurities or particles are observed. This step is intended to preliminarily determine the purity and quality of the thermal conductive potting glue 100 and ensure that the product appearance meets the standard requirements.

[0032] Next, professional testing equipment is used to test the thermal conductivity of the thermally conductive potting compound 100, including key parameters such as thermal conductivity and thermal resistance. These tests can accurately evaluate the thermal conductivity of the thermally conductive potting compound 100 to ensure that it can meet the heat dissipation requirements in actual applications.

[0033] At the same time, the thermal conductive potting glue 100 is also subjected to mechanical performance tests, such as tensile strength, shear strength, hardness, etc., to verify its mechanical strength and stability. These performance tests are crucial to ensure the reliability of the thermal conductive potting glue 100 in the process of packaging, fixing and protecting electronic components.

[0034] In addition, in order to evaluate the temperature resistance of the thermally conductive potting glue 100, a high and low temperature resistance test is also required. By simulating the high or low temperature environment that the thermally conductive potting glue 100 may encounter in actual applications, its performance changes are observed to ensure that it can maintain stable performance under different temperature conditions.

[0035] Finally, the thermal conductive potting glue 100 is subjected to electrical performance tests, such as insulation resistance, dielectric constant, dielectric loss, etc., to verify its electrical insulation performance and dielectric performance. These performance tests are of great significance for ensuring the safe application of the thermal conductive potting glue 100 in the electronic and electrical fields.

[0036] Through the above detection steps, the present invention can comprehensively evaluate the various properties of the thermal conductive potting glue 100 after the filtering and concentration processes are completed, ensuring that its quality meets the standard requirements and satisfies the actual application needs.

[0037] In some embodiments, the filtering and concentrating process of the thermally conductive potting glue further includes cleaning the filter tank 6 and the filter hole 7, and the specific steps are as follows: First, a cloth bag with a brush is put on the outer surface of the plug 12. Then, the plug 12 is driven by the telescopic mechanism 13 to repeatedly extend into and out of the filter tank 6 at a high speed. The brush on the cloth bag will brush the inner wall of the filter tank 6 and the filter hole 7 during the movement of the plug 12 to remove attached residues and impurities.

[0038] Preferably, in order to enhance the cleaning effect, an appropriate amount of cleaning liquid can be added to the filter tank 6. The combined effect of the cleaning liquid and the brush can more effectively remove stains and blockages. After cleaning, the cleaning liquid and dirt are discharged through the discharge port, and then the filter tank 6 is rinsed with clean water to ensure that there is no residue. Finally, the filter tank 6 and the filter hole 7 are dried and prepared for the next use.

[0039] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A filtration and concentration process for thermally conductive potting glue, characterized in that: The following steps are involved: A concentration tank (1) with an opening on the top and a filtering tank (6) with an opening on the top are prepared, the concentration tank (1) is provided with a discharge port (4) and a discharge valve (5), and a plurality of filtering holes (7) are provided on the side wall of the filtering tank (6); The filter tank (6) is concentrically placed in the concentration tank (1) to ensure that the tops are flush, and a cover (2) is arranged between the top openings of the two to form a closed hollow shell structure, the vertical cross-section of the internal space of which is in the shape of a "concave" character; A heating mechanism (8) and a piston ring (9) are arranged in the hollow shell structure. A movable sealing hoop of the piston ring (9) is arranged outside the filtering tank (6). The outer wall of the piston ring (9) is in contact with the inner wall of the concentration tank (1). A through hole (3) is provided on the sealing cover (2). The piston ring (9) is suspended by a rope (10). A pulley (11) and a telescopic mechanism (13) are fixed directly above the concentration tank (1), and the rope (10) is connected to the plug (12) after passing over the pulley (11). The plug (12) faces the filter tank (6) and can be sealed and inserted therein, and the telescopic mechanism (13) is connected to the top of the plug (12); Injecting a heat-conducting potting glue (100) into the filter tank (6), starting the heating mechanism (8) for heating, and controlling the plug (12) through the telescopic mechanism (13) to squeeze the heat-conducting potting glue (100) through the filter hole (7) into the concentration tank (1), thereby achieving filtration and concentration; Finally, the discharge valve (5) is opened to discharge the finished product through the discharge port (4).

2. The filtering and concentrating process of a thermally conductive potting adhesive according to claim 1, characterized in that: The inner wall of the concentration tank (1) is provided with evenly distributed and tightly fitted heat conducting sheets.

3. The filtering and concentrating process of a thermally conductive potting compound according to claim 1, characterized in that: The inner bottom surface of the concentration tank (1) is provided with a slope inclined toward the discharge port (4).

4. The filtering and concentrating process of a thermally conductive potting compound according to claim 1, characterized in that: The filter hole (7) is trumpet-shaped, with the end with a larger opening facing the inside of the filter tank (6) and the end with a smaller opening facing the outside of the filter tank (6).

5. The filtering and concentrating process of a thermally conductive potting compound according to claim 1, characterized in that: Before injecting the thermally conductive potting glue (100) into the filter tank (6), it is first subjected to a degassing treatment and a homogenizing treatment, including placing it in a vacuum degassing device to remove bubbles and volatile components, and performing mechanical stirring and shearing by a homogenizing treatment device.

6. The filtering and concentrating process of a thermally conductive potting compound according to claim 1, characterized in that: The method includes testing the thermal conductive potting compound (100) after the filtering and concentration process, including appearance inspection, thermal conductivity test, mechanical property test, high and low temperature resistance test and electrical property test.

7. The filtering and concentrating process of a thermally conductive potting adhesive according to claim 1, characterized in that: The method comprises cleaning the filter tank (6) and the filter hole (7), and the specific steps are: putting a cloth bag with a brush on the outer surface of the plug rod (12), and using a telescopic mechanism (13) to drive the plug rod (12) to move repeatedly for brushing.

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