Coating method for heat-conducting gasket and heat-conducting gasket having coating

Abstract

The embodiment of the invention discloses a coating method for a heat-conducting gasket and the heat-conducting gasket with a coating. The specific implementation mode of the coating method comprises the steps that a driving assembly in the coating equipment is controlled to drive a thin film to move along at least one driven roller; a coating roller located above the thin film is driven to rotate through the thin film, the two ends of the coating roller are fixed to an equipment frame of the coating equipment through bearing seats respectively, and the coating roller is located between a driving roller and at least one driven roller; a liquid storage assembly in the coating equipment is controlled to provide liquid coating for a coating roller; along with the rotation of the coating roller, the liquid coating on the coating roller is coated on the moving thin film in a rolling manner; and the thin film coated with the liquid coating in a rolling mode is attached to the heat conduction gasket through an attaching assembly in the coating equipment, so that the liquid coating is located between the thin film and the heat conduction gasket. The embodiment provides a novel method for coating the heat-conducting gasket with the material, the uniformity of the thickness of the material and the flatness of the surface can be guaranteed, and the technological requirements are met.

Description

Technical Field

[0001] Embodiments of the present disclosure relate to the technical field of thermally conductive gasket production, and in particular to a coating method for a thermally conductive gasket and a thermally conductive gasket with a coating. Background Art

[0002] There are two common methods for applying paint to thermal pads: one is to use a spatula; the other is to spray. The first method is to apply liquid paint to the thermal pad first, and then place a spatula made of soft rubber material above the thermal pad. As the thermal pad moves, the spatula is used to scrape off the excess paint on it, thereby obtaining the desired thickness of paint. The second method is to spray the liquid paint directly on the thermal pad.

[0003] However, the inventors found that the surface uniformity of the coatings obtained by these two methods is not very good, and the spraying method is also prone to problems such as particles or bubbles on the surface, affecting the quality of coating on the thermal pad.

[0004] The above information disclosed in this Background section is only for enhancement of understanding of the background of the present disclosure concept and therefore it may contain information that does not form the prior art that is already known in this country to a person of ordinary skill in the art. Summary of the invention

[0005] The content of this disclosure is used to introduce concepts in a brief form, and these concepts will be described in detail in the specific implementation section below. The content of this disclosure is not intended to identify the key features or necessary features of the technical solution for which protection is sought, nor is it intended to limit the scope of the technical solution for which protection is sought. Some embodiments of the present disclosure propose a coating method for a thermally conductive gasket, which can ensure the uniformity of the coating thickness, improve the coating quality, and meet the process requirements.

[0006] In a first aspect, some embodiments of the present disclosure provide a coating method for a thermally conductive gasket, comprising: controlling a driving component in a coating device to drive a film to move along at least one driven roller, wherein the driving component comprises a driver, a driving roller and at least one driven roller, and the driver is connected to the driving roller; driving a coating roller located above the film to rotate through the film, wherein both ends of the coating roller are respectively fixed to an equipment frame of the coating device through bearing seats, and the coating roller is located between the driving roller and the at least one driven roller; controlling a liquid storage component in the coating device to provide liquid coating to the coating roller, wherein the liquid storage component comprises a liquid storage tank, and an outlet of the liquid storage tank is connected to the coating roller; as the coating roller rotates, the liquid coating on the coating roller is rolled onto the moving film; through a bonding component in the coating device, the film coated with the liquid coating is bonded to the thermally conductive gasket so that the liquid coating is located between the film and the thermally conductive gasket, wherein the bonding component is located between the coating roller and the driving roller.

[0007] In some embodiments, the method further includes: heating the bonded film and thermal gasket by a heating device to dry the liquid coating therebetween; separating the film and the thermal gasket after heating and drying so that the dried liquid coating is located on the thermal gasket, thereby achieving coating of the coating on the thermal gasket.

[0008] In some embodiments, the coating roller includes a metal tube, a sponge and a baffle; both ends of the metal tube are fixed to the bearing seat, the sponge is wrapped around the outer surface of the metal tube, and the baffle is sleeved on the metal tube and located at both ends of the sponge.

[0009] In some embodiments, the metal tube is a hollow tube with multiple holes on the outer surface; the holes on the metal tube are arranged at equal intervals, and the metal tube has at least four rows of holes in the circumferential direction, and each row has at least twenty holes, wherein the diameter of the holes ranges from 0.1 mm to 2.2 mm.

[0010] In some embodiments, the coating equipment includes two liquid storage components, which are respectively fixed on two support columns symmetrically arranged in the equipment frame; the liquid storage component also includes a pressure regulating valve, which is connected to the upper end of the liquid storage tank through an air circuit, and the lower end of the liquid storage tank is connected to one end of the metal pipe through a pipeline; the pressure regulating valve is fixed on the support column, the liquid storage tank is fixed to the support column through a connecting plate, the bearing seat is fixed on the connecting plate, and the connecting plate is provided with a through hole at the position corresponding to the bearing seat.

[0011] In some embodiments, the method further comprises: detecting the thickness of the liquid coating rolled onto the film by an optical component, wherein the optical component is located between the coating roller and the laminating component and is arranged above the film in a direction parallel to the coating roller.

[0012] In some embodiments, the method further includes: adjusting the rotation speed of the driving component to control the moving speed of the film, and / or adjusting the pressure of the pressure regulating valve to control the flow speed of the liquid coating according to the detection result of the optical component.

[0013] In some embodiments, the liquid coating is an abrasion-resistant coating, a weight ratio of the abrasion-resistant coating to the crosslinking agent is 100:0.5 to 100:5, and a thickness of the abrasion-resistant coating is 20 micrometers to 200 micrometers.

[0014] In a second aspect, some embodiments of the present disclosure provide a thermally conductive gasket with a coating, including: a thermally conductive gasket for cooling electronic components; a wear-resistant coating located on a surface of the thermally conductive gasket for increasing the stability of the fixation of the thermally conductive gasket, the wear-resistant coating being coated on the thermally conductive gasket using the coating method for the thermally conductive gasket described in any implementation method in the first aspect above.

[0015] The above-mentioned embodiments of the present disclosure have the following beneficial effects: the coating method for thermally conductive gaskets of some embodiments of the present disclosure can coat liquid materials on the thermally conductive gaskets by using coating equipment, thereby ensuring the uniformity of coating thickness, improving coating quality, and meeting process requirements. Specifically, the coating method for thermally conductive gaskets of the present disclosure can drive the film to move by a driving component. The coating roller can be located between the driving roller and the driven roller, and above the film. The outlet of the liquid storage tank in the liquid storage component is connected to the coating roller, which is used to provide liquid coating to the coating roller. In this way, when the film moves to the coating roller under the action of the driving roller, the upper surface of the film will contact the coating roller. Driven by the film, the coating roller rotates, so that the liquid coating on the coating roller can be rolled on the moving film. Afterwards, the film rolled with liquid coating can be laminated with the thermally conductive gasket using a laminating component located between the coating roller and the driving roller, so that the liquid coating is located between the film and the thermally conductive gasket, thereby achieving the coating of liquid coating on the thermally conductive gasket. Compared with the traditional scraping or spraying method, the coating method disclosed in the present invention can realize the coating by rolling using the coating equipment, which can not only ensure the uniformity of the coating thickness, but also avoid the generation of bubbles, thereby ensuring the flatness of the coating surface, improving the coating quality, and meeting the process requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. Throughout the accompanying drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that components and elements are not necessarily drawn to scale.

[0017] Figure 1 is a schematic diagram of the structure of some embodiments of the coating device disclosed in the present invention;

[0018] Figure 2 is a flow chart of some embodiments of the coating method for a thermally conductive pad disclosed in the present invention;

[0019] Figure 3 Schematic diagrams of some embodiments of the thermally conductive pad with coating disclosed in the present invention. DETAILED DESCRIPTION

[0020] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0021] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0022] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0023] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0024] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0025] Figure 1 Schematic diagram of the structure of the coating device of the present disclosure is shown. The coating device may include a device frame 1, a drive assembly 2, a coating roller 3 and a liquid storage assembly 4. Figure 1 As shown, the device frame 1 is used to constitute the supporting body of the device, and may include two symmetrically arranged supporting columns. The driving assembly 2 may include a driver (not shown in the figure), a driving roller (not shown in the figure) and at least one driven roller. Here, one end of the film may be fixed to the driving roller, and the other end may be fixed to one of the at least one driven roller. The driver may be connected to the driving roller, so as to drive the film to move along the at least one driven roller.

[0026] In addition, the coating roller 3 can be used to roll liquid coating onto the film passing through the coating roller. The two ends of the coating roller 3 can be fixed to the two support columns through the bearing seats z respectively. That is to say, the bearing seats z can be sleeved on the two ends of the coating roller 3. At the same time, the bearing seats z can be fixed on the support columns. The coating roller 3 is located between the driving roller and at least one driven roller, and is located above the film and connected to the upper surface of the film. The liquid storage component 4 may include a liquid storage tank 41. The liquid storage tank 41 is used to store liquid coating. Here, the outlet of the liquid storage tank 41 can be connected to the coating roller 3 to provide liquid coating to the coating roller 3.

[0027] It should be noted that the structures of the coating roller 3 and the liquid storage assembly 4 can be set according to actual needs. For example, in order to achieve the rolling of liquid paint, the coating roller can be made of a water-absorbing material, such as sponge, felt, cloth, etc. In this way, such materials can be used to absorb the paint to achieve rolling, while avoiding the dripping of the paint to affect the coating thickness quality. In order to achieve fixed support of the coating roller, the inside of the coating roller can be made of rubber, metal or hard plastic to make a round roller. At the same time, the outside of the round roller is wrapped with the above-mentioned water-absorbing material.

[0028] In some embodiments, the coating roller 3 may include a metal tube 31, a sponge 32 and a stopper. The two ends of the metal tube 31 may be fixed to the bearing seat. The sponge 32 may be wrapped around the outer surface of the metal tube 31. Meanwhile, the stopper may be sleeved on the metal tube 31 and located at the two ends of the sponge 32.

[0029] In this case, the above-mentioned liquid storage tank can be in the shape of a long barrel. The liquid storage tank can be located above the coating roller and arranged along the length direction of the coating roller. In addition, a liquid outlet groove (i.e., an opening) can be provided at the lower end of the liquid storage tank, where the liquid outlet groove is connected to the upper surface of the coating roller. Here, the length of the liquid outlet groove can match the length of the sponge. In other words, a slender liquid outlet groove can be provided at the lower end of the liquid storage tank. In this way, the liquid coating can slowly flow out of the liquid outlet groove under the action of gravity. At the same time, as the coating roller rotates, the sponge on its surface can be evenly covered with the flowing liquid coating, and then the liquid coating on the sponge can be rolled onto the film.

[0030] Furthermore, if Figure 1 As shown, the metal tube 31 can be a hollow tube with a plurality of holes on the outer surface. In this case, the lower end outlet of the liquid storage tank 41 can be connected to the two ends of the metal tube 31 through a pipeline. In addition, the liquid storage assembly 4 can also include a pressure regulating valve 42. Among them, the pressure regulating valve 42 is connected to the upper end of the liquid storage tank 41 through an air path. The flow rate of the liquid coating in the liquid storage tank 41 can be adjusted by the pressure regulating valve 42. And the liquid coating can be transported to the inside of the coating roller through the two ends of the metal tube 31. And through the multiple holes opened on the metal tube 31, the liquid coating can flow to the sponge 32 outside the coating roller.

[0031] Here, the pressure regulating valve 42 can be fixed on the support column. The liquid storage tank 41 can be fixed on the support column through a connecting plate. The bearing seat can be fixed on the connecting plate, and the connecting plate can be provided with a through hole at the position corresponding to the bearing seat. It can be understood that the coating device of the present disclosure may include two liquid storage assemblies. The two liquid storage assemblies can be fixed on two support columns, respectively, and respectively connected to the two ends of the metal tube 31. This helps to ensure the uniformity of the liquid coating at the same level in the coating roller, thereby ensuring the uniformity of the coating thickness.

[0032] In some embodiments, in order to meet different production requirements, the above-mentioned connecting plate may include a first connecting plate and a second connecting plate. The liquid storage tank may be fixed on the first connecting plate, and the coating roller may be fixed on the second connecting plate. In addition, one end of the first connecting plate is fixed to the support column, and the other end may be provided with a vertical groove extending in a direction perpendicular to the ground. At this time, the second connecting plate may be fixed to the first connecting plate through the vertical groove using bolts and nuts. In this way, the height of the coating roller can be adjusted according to the height of the film during actual production and the thickness of the coating.

[0033] It is understandable that the structural dimensions of the above-mentioned coating roller can also be set according to actual needs. As an example, the holes on the metal tube 31 can be arranged at equal intervals. Here, the metal tube 31 can be provided with at least four rows of holes in the circumferential direction, and each row can be provided with at least twenty holes. Among them, the diameter range of the holes can be between 0.1 mm and 2.2 mm. For example, the metal tube 31 can be a steel tube, and its outer diameter can be 20 to 40 mm, and its inner diameter can be 10 to 20 mm. A row of holes can be punched on the metal tube 31 every 90 degrees, for a total of 4 rows of holes. A hole with a diameter of 2 mm can be punched every 20 mm in each row, and a total of 22 holes in one row. The above-mentioned sponge 32 can be made of PP (polypropylene) cotton.

[0034] Continue to see Figure 2 , which shows a flow chart of some embodiments of the coating method for thermally conductive pads disclosed in the present invention. The coating method can be used for Figure 1 The coating device shown in the embodiment may include the following steps:

[0035] Step 201, controlling a driving component in a coating device to drive a film to move along at least one driven roller.

[0036] Step 202: The coating roller located above the film is driven to rotate by the film.

[0037] Step 203, controlling the liquid storage assembly in the coating device to provide liquid coating to the coating roller.

[0038] Step 204: As the coating roller rotates, the liquid coating on the coating roller is rolled onto the moving film.

[0039] Step 205, laminating the film with the liquid coating rolled on it with the thermally conductive gasket through a laminating component in the coating device, so that the liquid coating is located between the film and the thermally conductive gasket.

[0040] Furthermore, after the film rolled with the liquid coating is attached to the thermal conductive pad, the following steps may be performed.

[0041] Step 206, heating the laminated film and the thermally conductive pad by a heating device to dry the liquid coating therebetween.

[0042] Step 207, after heating and drying, the film is separated from the thermally conductive gasket, so that the dried liquid coating is located on the thermally conductive gasket, thereby achieving coating of the coating on the thermally conductive gasket.

[0043] It should be noted that after the liquid coating is rolled onto the film, the film can be bonded to the thermally conductive gasket, so that the coating is transferred to the thermally conductive gasket, thereby achieving coating of the coating (such as wear-resistant coating) on ​​one side of the thermally conductive gasket. Here, the coating equipment may also include a bonding component (not shown in the figure). The bonding component can be arranged between the coating roller and the driving roller, and is used to bond the film rolled with the liquid coating to the thermally conductive gasket. The liquid coating is located between the film and the thermally conductive gasket. Afterwards, the liquid coating can be solidified by heating and drying with a heating device. After the coating solidifies, the film on the bonded thermally conductive gasket can be torn off to complete the coating layer (such as Figure 3 C1) The whole process of coating.

[0044] The structure of the laminating assembly is also not limited, and may include at least one pair of rollers disposed vertically and parallel to each other. The film coated with liquid coating and the thermal pad can be rolled into the space between the two rollers from one side, and the two can be laminated under the squeezing action of the rollers. After laminating, the film can be removed from the other side of the two rollers. In addition, the other side of the thermal pad can be affixed with a protective film, such as Figure 3 C3 in. When in use, the protective film can be torn off, so that the thermal pad can be pasted to the position where heat dissipation or heat exchange is required.

[0045] It can be seen from the above description that the coating method for thermally conductive gaskets of some embodiments of the present disclosure can coat liquid materials on the thermally conductive gaskets by using a coating device, thereby ensuring the uniformity of the coating thickness, improving the coating quality, and meeting the process requirements. Specifically, the coating method for thermally conductive gaskets of the present disclosure can drive the film to move by a driving component. The coating roller can be located between the driving roller and the driven roller, and above the film. The outlet of the liquid storage tank in the liquid storage component is connected to the coating roller, which is used to provide liquid coating to the coating roller. In this way, when the film moves to the coating roller under the action of the driving roller, the upper surface of the film will contact the coating roller. Driven by the film, the coating roller rotates, so that the liquid coating on the coating roller can be rolled on the moving film. Afterwards, the film rolled with liquid coating can be laminated with the thermally conductive gasket using a bonding component located between the coating roller and the driving roller, so that the liquid coating is located between the film and the thermally conductive gasket, thereby achieving the coating of liquid coating on the thermally conductive gasket. Compared with the traditional scraping or spraying method, the coating method disclosed in the present invention can realize the coating by rolling using the coating equipment, which can not only ensure the uniformity of the coating thickness, but also avoid the generation of bubbles, thereby ensuring the flatness of the coating surface, improving the coating quality, and meeting the process requirements.

[0046] It is understood that, through the method disclosed in the present invention, any liquid coating can be applied to the thermally conductive pad. As an example, the liquid coating in this embodiment can be a wear-resistant coating. Here, the weight ratio of the wear-resistant coating to the cross-linking agent in the liquid coating is 100:0.5 to 100:5. The viscosity of the liquid coating is about 40000 mPa·s. And the thickness of the wear-resistant coating after drying can be 20 microns to 200 microns.

[0047] In some embodiments, in order to ensure that the coating thickness of the liquid coating meets the production requirements and reduce the defective rate, the coating equipment may also include an optical detection component (not shown in the figure). The optical detection component may be arranged between the coating roller and the laminating component to detect the thickness of the liquid coating rolled on the film. The optical detection component here can use light to achieve non-contact thickness detection, such as an OGP (Optical Gaging Products) image measuring instrument. It is understandable that the optical detection component here may include multiple detection positions. The setting of these detection positions may be parallel to the length direction of the coating roller and located above the film. That is, it is arranged along the width direction of the film. In this way, according to the detection results of the optical detection component, the rolling thickness of the coating can be understood in real time to achieve thickness detection. Then, according to the detection results, the production process parameters can be adjusted, such as the flow rate of the liquid coating, the rotation speed of the drive component (i.e., the moving speed of the film), the height of the coating roller, etc.

[0048] That is to say, Figure 2 The process steps of the embodiment method may also include: adjusting the rotation speed of the driving component to control the moving speed of the film and / or adjusting the pressure of the pressure regulating valve to control the flow speed of the liquid coating according to the detection results of the optical component. In this way, during the production process, the coating equipment can be dynamically adjusted in real time according to the detection results, so that the coating thickness meets the production process requirements.

[0049] It should be noted that, when the viscosity and flow rate of the coating remain unchanged, the faster the film moves, the thinner the coating thickness is. Similarly, when other conditions remain unchanged, the faster the flow rate, the thicker the coating thickness is; the higher the coating viscosity, the thicker the coating thickness is. In other words, the coating thickness is inversely proportional to the moving speed and directly proportional to the flow rate and viscosity. Therefore, when the coating method disclosed in the present invention is used for rolling liquid coating, the following technical problems may occur.

[0050] Liquid viscosity is usually closely related to ambient temperature. In most areas, especially in the north, the temperature varies greatly throughout the year. This will directly affect the ambient temperature of ordinary production workshops. This will in turn affect the viscosity of liquid coatings. In addition, the viscosity of liquid coatings produced in different batches may also vary. Therefore, it is necessary to dynamically adjust the equipment parameters according to the liquid viscosity to ensure the stability and consistency of the coating thickness.

[0051] In some embodiments, the above-mentioned liquid storage tank may also be provided with an online viscosity detector for detecting the viscosity of the liquid coating therein. In this case, when the liquid coating batch is produced for the first time each day and when the liquid coating batch is replaced, the controller of the coating equipment may first receive the viscosity data detected by the online viscosity detector. Then, the flow rate of the liquid coating is determined according to the detected viscosity data and the pressure of the currently set pressure regulating valve. Among them, the flow rate is usually proportional to the pressure and inversely proportional to the viscosity. Afterwards, the moving speed of the film can be determined according to the viscosity data, the flow rate, and the thickness of the coating required to be coated. At this time, the controller may adjust the drive assembly according to the determined moving speed, thereby adjusting the moving speed of the film for actual production. Then, during the production process, the controller may receive the thickness data detected by the optical detection assembly. Afterwards, when the moving speed remains unchanged, the current pressure of the pressure regulating valve may be adjusted according to the detected thickness data to adjust the flow rate of the liquid coating. Alternatively, the drive assembly may be adjusted to adjust the moving speed of the film. In this way, the production parameters may be adjusted dynamically and in real time according to the actual situation, thereby ensuring the accuracy and stability of the coating layer thickness and reducing the generation of defective products. In addition, through real-time detection and dynamic adjustment of controllers and detection elements, it is possible to avoid the situation where manual adjustment relies on production experience and uncertainty, resulting in repeated adjustment and detection, which wastes production time and raw materials. This can improve the accuracy and timeliness of parameter adjustment and help reduce the defect rate.

[0052] Some embodiments of the present disclosure also provide a thermally conductive pad having a coating. Figure 3 As shown, the thermally conductive gasket with coating may include: a thermally conductive gasket C2 and a wear-resistant coating C1. The thermally conductive gasket C2 may be used to cool down electronic components. The wear-resistant coating C1 may be located on one surface of the thermally conductive gasket C2 to increase the stability of the thermally conductive gasket. The wear-resistant coating C1 may be the above-mentioned Figure 2 In the embodiment, the coating method for the thermally conductive pad described in any implementation manner uses Figure 1 The coating device shown in the embodiment is coated on the thermal conductive pad.

[0053] It should be noted that by coating the thermal pad with a wear-resistant material, the thermal pad can be protected. It can prevent it from shifting or deforming when heated or stressed. In addition, due to the characteristics of the thermal pad itself, both surfaces are usually soft and sticky, which makes it inconvenient to pick up and place the thermal pad. The thermal pad disclosed in the present invention, by coating a wear-resistant coating on one surface, makes the surface no longer soft and sticky, thereby facilitating the picking up and installation of the thermal pad.

[0054] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned inventive concept. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the embodiments of the present disclosure (but not limited to) and the technical solutions formed.

Claims

1. A coating method for a thermally conductive pad, comprising: Controlling a driving assembly in the coating device to drive the film to move along at least one driven roller, wherein the driving assembly comprises a driver, a driving roller and at least one driven roller, and the driver is connected to the driving roller; The coating roller located above the film is driven to rotate by the film, wherein both ends of the coating roller are respectively fixed to the equipment frame of the coating device through bearing seats, and the coating roller is located between the driving roller and the at least one driven roller; Controlling a liquid storage component in the coating device to provide liquid coating to the coating roller, wherein the liquid storage component comprises a liquid storage tank, and an outlet of the liquid storage tank is connected to the coating roller; As the coating roller rotates, the liquid coating on the coating roller is rolled onto the moving film; The film with liquid coating rolled on it is bonded to the thermal pad through the bonding component in the coating device, so that the liquid coating is located between the film and the thermal pad, wherein the bonding component is located between the coating roller and the driving roller.

2. The coating method for a thermally conductive pad according to claim 1, wherein: The method further comprises: The laminated film and thermal pad are heated by a heating device to dry the liquid coating between the two; After heating and drying, the film is separated from the thermally conductive pad, so that the dried liquid coating is located on the thermally conductive pad, thereby achieving coating of the coating on the thermally conductive pad.

3. The coating method for a thermally conductive pad according to claim 1, wherein: The coating roller comprises a metal tube, a sponge and a baffle; The two ends of the metal tube are fixed to the bearing seat, the sponge is wrapped around the outer surface of the metal tube, and the blocking member is sleeved on the metal tube and located at the two ends of the sponge.

4. The coating method for a thermally conductive pad according to claim 3, wherein: The metal tube is a hollow tube with a plurality of holes formed on its outer surface; The holes on the metal tube are arranged at equal intervals. The metal tube is provided with at least four rows of holes in the circumferential direction, and each row is provided with at least twenty holes. The diameter of the holes ranges from 0.1 mm to 2.2 mm.

5. The coating method for a thermally conductive pad according to claim 4, wherein: The coating device comprises two liquid storage components, and the two liquid storage components are respectively fixed on two supporting columns symmetrically arranged in the device frame; The liquid storage assembly further includes a pressure regulating valve, the pressure regulating valve is connected to the upper end of the liquid storage tank via an air path, and the lower end of the liquid storage tank is connected to one end of the metal pipe via a pipeline; The pressure regulating valve is fixed on the support column, the liquid storage tank is fixed on the support column through a connecting plate, the bearing seat is fixed on the connecting plate, and the connecting plate is provided with a through hole at a position corresponding to the bearing seat.

6. The coating method for a thermally conductive pad according to claim 5, wherein: The method further comprises: The thickness of the liquid coating rolled onto the film is detected by an optical component, wherein the optical component is located between the coating roller and the laminating component and is arranged above the film in a direction parallel to the coating roller.

7. The coating method for a thermally conductive pad according to claim 6, wherein: The method further comprises: According to the detection result of the optical component, the rotation speed of the driving component is adjusted to control the moving speed of the film, and / or the pressure of the pressure regulating valve is adjusted to control the flow speed of the liquid coating.

8. The coating method for a thermally conductive pad according to any one of claims 1 to 7, wherein: The liquid coating is a wear-resistant coating, the weight ratio of the wear-resistant coating to the cross-linking agent is 100:0.5 to 100:5, and the thickness of the wear-resistant coating is 20 micrometers to 200 micrometers.

9. A thermally conductive pad with a coating, comprising: Thermal pads, used to cool electronic components; A wear-resistant coating is located on a surface of the thermally conductive gasket and is used to increase the stability of fixing the thermally conductive gasket. The wear-resistant coating is coated on the thermally conductive gasket using the coating method for thermally conductive gaskets as described in any one of claims 1-8.

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