A masking device for the preparation of double-sided electrodes
By designing a shielding device for the fabrication of double-sided electrodes, precise alignment of the upper and lower panels is achieved using connecting components and support plates, solving the problem of low alignment accuracy of double-sided electrodes, improving production efficiency and product quality, and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING GRAPHENE RES INST CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-06-09
AI Technical Summary
In existing technologies, the alignment accuracy of double-sided electrodes is low, resulting in poor production efficiency and product quality.
Design a shielding device for the fabrication of double-sided electrodes, including an upper panel and a lower panel. The upper and lower panels are tightly fastened by connecting components, positioning holes, and positioning bolts to ensure precise alignment of the cutout windows. A support plate is inserted into the worktable to provide a stable positioning base.
It improves the alignment accuracy of double-sided electrodes, reduces scrap rate, lowers production costs, improves production efficiency and product quality, and extends the service life of the equipment.
Smart Images
Figure CN224337680U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of double-sided electrode fabrication technology, specifically to a shielding device for double-sided electrode fabrication. Background Technology
[0002] The graphene-coated fiberglass substrate is made of high-strength fiberglass or quartz fiberglass fabric, with graphene deposited on its surface using a CVD process. It possesses excellent electrothermal properties and is widely used in aerospace, automotive manufacturing, wind power generation, and smart home appliances. A copper coating of a certain thickness is prepared on the surface of the graphene-coated fiberglass fabric using a plasma spraying process to serve as a flexible conductive electrode. This fully utilizes the flexibility and electrothermal properties of the graphene-coated fiberglass fabric and is a crucial process step in the electrothermal application of graphene-coated fiberglass.
[0003] In existing technologies, a laser cutting machine is used to cut metal sheets to obtain cutouts for electrode spraying. The metal sheet is then used as a masking fixture to cover the styrene fiberglass fabric, allowing for spraying and ultimately preparing the electrode coating. When preparing double-sided electrodes, the styrene fiberglass fabric needs to be manually flipped. The fabric, after single-sided electrode spraying, is flipped over and re-laid, and the masking fixture is re-covered before spraying. However, when re-covering the metal sheet, it is difficult to align the cutouts with the single-sided electrode, resulting in low alignment accuracy for the fabricated double-sided electrodes. Utility Model Content
[0004] In view of this, the present invention provides a shielding device for the preparation of double-sided electrodes to solve the problem of low alignment accuracy of the two-sided electrodes.
[0005] This utility model provides a shielding device for the fabrication of double-sided electrodes, comprising:
[0006] The panel, including the top panel and the bottom panel, is provided with cutout windows;
[0007] A connecting component is adapted to fasten the upper panel and the lower panel together, wherein when the upper panel and the lower panel are fastened together, the cutout windows on the upper panel and the lower panel overlap.
[0008] A support plate, set on the workbench, is suitable for insertion into the openwork window.
[0009] In this application, the MgO fiberglass fabric is fastened between the upper and lower panels. The connecting assembly enables the upper and lower panels to fit together tightly and the cutout windows to align precisely, improving the alignment accuracy of the electrodes on both sides. This solves the accuracy problems caused by manual flipping or secondary positioning in traditional methods, thereby improving production efficiency and product quality.
[0010] In one alternative implementation, the connection component includes:
[0011] The positioning holes are connected to at least two edges of the panel, and at least two positioning holes are provided at each edge position;
[0012] The positioning bolts and nuts are adapted to connect the positioning holes on the opposite edges of the upper and lower panels when the upper and lower panels are fastened together.
[0013] In this application, the design employing positioning holes, positioning bolts, and nuts ensures precise alignment of the perforated windows when the upper and lower panels are fastened together. When the positioning holes on the opposite edges of the upper and lower panels are connected by positioning bolts and nuts, this stable mechanical connection not only improves the reliability of the connection but also guarantees the accuracy of the relative positional relationship between the two panels. This ensures that the upper and lower perforated windows remain precisely aligned throughout the double-sided electrode fabrication process, providing a stable positioning basis for subsequent plasma spraying operations. This solves the problem of low alignment accuracy of the two-sided electrodes caused by manual flipping and secondary positioning in existing technologies, effectively improving the overall product quality, reducing the scrap rate due to inaccurate positioning, and lowering production costs.
[0014] In one alternative embodiment, the positioning holes are connected on two opposite edges of the panel.
[0015] In this application, the positioning holes on the opposite edges provide a more uniform distribution of connecting force when the panels are fastened, making the connection between the upper and lower panels more stable and avoiding loosening or deformation caused by excessive local stress. It also provides greater flexibility and convenience for the installation and adjustment of connecting components. In different production scenarios and workbench configurations, operators can select appropriate positioning holes for connection according to actual needs, thereby achieving rapid assembly and precise positioning of the shielding device, improving the equipment's versatility and adaptability. Furthermore, the positioning hole layout on the opposite edges helps improve the overall stability of the shielding device, better dispersing stress when subjected to external impacts or vibrations, reducing the risk of panel displacement or damage, ensuring the smooth progress of the double-sided electrode preparation process, and guaranteeing product quality and production stability.
[0016] In one alternative embodiment, the mating surfaces of the upper and lower panels are both polished planes.
[0017] In this application, the mating surfaces of the upper and lower panels feature a polished flat design, which minimizes friction and pressure between the panels and the PVC-U fiberglass fabric. During clamping and mating, the smooth, flat surface of the polished surface prevents scratches, abrasions, or other damage to the fabric, protecting the surface structural integrity of the PVC-U fiberglass fabric and ensuring its performance stability in subsequent electrothermal applications. Furthermore, this smooth mating surface facilitates easy removal of the fabric from the panel after a production cycle, avoiding issues such as fabric adhesion and residue caused by panel surface roughness. This improves production efficiency, extends the service life of both the fabric and the panel, and ensures a smooth production process.
[0018] In one optional embodiment, a positioning groove is provided on the side of the panel away from the fastening surface, and it communicates with the hollowed-out window;
[0019] The support plate is adapted to be snapped into the positioning groove and extends into the hollowed-out window.
[0020] In one alternative embodiment, the support plate is an inverted T-shape, with its bottom end snapped into a positioning groove and its top end completely filling the hollow window.
[0021] In this application, the positioning groove on the side of the panel away from the fastening surface, which communicates with the perforated window, and the inverted T-shaped support plate with its bottom end snapped into the positioning groove and its top end completely filling the perforated window, offer several significant advantages. First, the mating structure of the positioning groove and the support plate effectively increases the connection stability between the shielding device and the worktable. During plasma spraying, the support plate snaps into the positioning groove, preventing relative movement between the panel and the support plate bracket during spraying, thus ensuring the accuracy and continuity of the spraying operation. Second, the top end of the support plate completely filling the perforated window further guarantees the accuracy of the spraying operation.
[0022] In one alternative embodiment, the top surface of the support plate is flush with the mating surface of the panel.
[0023] In this application, the top surface of the support plate is flush with the fastening surface of the panel, which not only makes the overall appearance of the device more beautiful and neat, but also provides better support for the fabric.
[0024] In one alternative embodiment, the positioning groove is a through groove and is provided along the extension direction of the cutout window.
[0025] In this application, the through-slot design allows the support plate to be inserted into the positioning slot more smoothly during the snap-fit process, reducing the operational difficulty and time cost during assembly and improving production efficiency. The through-slot extends in the same direction as the perforated window, better guiding the installation position of the support plate and ensuring more precise and uniform filling of the perforated window when the support plate mates with the panel, further enhancing the stability of the shielding device during operation. Simultaneously, this through-slot structure facilitates quick disassembly when the support plate needs adjustment or replacement, improving the flexibility and maintainability of the equipment. This allows the entire shielding device to better adapt to different production needs and process requirements, extending the equipment's service life and reducing the company's equipment replacement costs.
[0026] In one alternative embodiment, reinforcing ribs are provided on the surfaces of the upper and lower panels that are away from the fastening surfaces.
[0027] In this application, reinforcing ribs are provided on the surfaces of the top and bottom plates away from the fastening surfaces, which significantly improves the structural strength and stability of the shielding device. During plasma spraying, the shielding device must withstand complex conditions such as high temperature, high pressure, and the impact of the spraying flame. Prolonged exposure to heat and mechanical stress can easily cause the panel to bend and deform. The reinforcing ribs effectively disperse these forces, enhancing the panel's bending resistance and allowing it to maintain its original shape and dimensional accuracy under high-temperature conditions. This ensures the accuracy of the perforated window position and the tight fit with the PVC fiberglass fabric. This not only improves product processing quality and reduces waste caused by tooling deformation but also extends the service life of the shielding device, reducing the frequency and cost of equipment replacement for enterprises, and ensuring the continuity and economy of the production process. Attached Figure Description
[0028] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0029] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;
[0030] Figure 2 This is a schematic diagram showing the fastening state of the upper and lower panels and the position of the reinforcing ribs in an embodiment of this utility model.
[0031] Figure 3 This is a partially enlarged schematic diagram of embodiment A of the present utility model;
[0032] Figure 4 This is a schematic diagram of the support plate structure in an embodiment of the present utility model.
[0033] Explanation of reference numerals in the attached figures:
[0034] 1. Top panel; 2. Bottom panel; 3. Cutout window; 4. Support plate; 5. Positioning hole; 6. Positioning bolt; 7. Positioning groove; 8. Reinforcing rib. Detailed Implementation
[0035] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0036] The graphene-coated fiberglass substrate is made of high-strength fiberglass or quartz fiberglass fabric, with graphene deposited on its surface using a CVD process. It possesses excellent electrothermal properties and is widely used in aerospace, automotive manufacturing, wind power generation, and smart home appliances. A copper coating of a certain thickness is prepared on the surface of the graphene-coated fiberglass fabric using a plasma spraying process to serve as a flexible conductive electrode. This fully utilizes the flexibility and electrothermal properties of the graphene-coated fiberglass fabric and is a crucial process step in the electrothermal application of graphene-coated fiberglass.
[0037] Common masking methods used in plasma spraying include:
[0038] 1. Use masking putty or masking tape for application. This method is suitable for ceramic and metal materials with a certain surface strength. However, since the masking putty and masking tape are glass fiber fabric products, they have a certain degree of stickiness. If they are applied to the fabric surface and then peeled off, they can easily cause damage to the fabric and leave masking material residue, which seriously affects the electric heating performance of the material's heating zone.
[0039] 2. Using custom-made perforated metal sheets for shielding. This shielding method, due to its single-sided heating, is prone to bending and deformation, creating gaps between the sheet and the fiberglass fabric, leading to decreased precision and product contamination.
[0040] For the second masking method, existing technology uses a laser cutting machine to cut a metal sheet, cuts out the electrode spraying area, and then uses this as a masking fixture to cover the montmorillonite fiberglass fabric for spraying, ultimately achieving the preparation of the copper electrode coating. When preparing double-sided electrodes, the montmorillonite fiberglass fabric that has been sprayed on one side needs to be flipped over and laid out, and then covered with the masking fixture again for spraying.
[0041] The masking fixture is a metal consumable. Long-term exposure to metal thermal stress and the continuous deposition of a copper coating on its surface will cause fixture deformation, affecting its accuracy. When spraying double-sided electrodes, manual flipping of the material for secondary positioning, lacking a positioning device, will also affect the alignment accuracy of the electrodes. During spraying, the fixture, the PVC-U fiberglass fabric, and the spraying table must be in close contact to prevent the spray flame from passing through gaps, causing product contamination and electrode oxidation and discoloration. These issues require a special structural design to address.
[0042] This application aims to quickly achieve the clamping, positioning and flipping of the montmorillonite fiberglass fabric, and after fixing, the upper and lower surfaces of the montmorillonite fiberglass fabric are seamlessly bonded except for the electrode spraying area.
[0043] The following is combined Figures 1 to 4 The following describes embodiments of the present invention.
[0044] According to an embodiment of the present invention, a shielding device for fabricating double-sided electrodes is provided, comprising:
[0045] The panel, including the upper panel 1 and the lower panel 2, is provided with a cutout window 3; the cutout window 3 can be used for plasma spraying of copper electrodes.
[0046] The connecting component is adapted to fasten the upper panel 1 and the lower panel 2 together, and when the upper panel 1 and the lower panel 2 are fastened together, the cutout windows 3 on the upper panel 1 and the lower panel 2 overlap; copper electrodes can be plasma-sprayed through the cutout windows 3 on the upper panel 1 and the lower panel 2 respectively to obtain aligned double-sided electrodes.
[0047] Support plate 4 is set on the workbench and is suitable for insertion into the hollow window 3.
[0048] In this application, the PVC fiberglass fabric is fastened between the upper and lower panels. The connecting components enable the upper panel 1 and the lower panel 2 to fit tightly together and the cutout window 3 to align precisely, improving the alignment accuracy of the electrodes on both sides. The support plate 4 enables rapid positioning of the panels on the worktable, solving the accuracy problems caused by manual flipping or secondary positioning in traditional methods, thus improving production efficiency and product quality.
[0049] In one alternative implementation, the connection component includes:
[0050] The positioning holes 5 are connected to at least two edges of the panel, and at least two positioning holes 5 are provided at each edge position; the positioning holes 5 can be connected to the edge of the panel through a connecting rod, located on the outside of the panel, and the axes of the positioning holes 5 at each edge position can be coincident, which facilitates connection by positioning bolts 6.
[0051] The positioning bolt 6 and nut are used to connect the positioning holes 5 on the opposite edges of the upper panel 1 and the lower panel 2 when the upper panel 1 and the lower panel 2 are fastened together. The positioning holes 5 are located between the head of the positioning bolt 6 and the nut, and are locked in place by the head of the positioning bolt 6 and the nut.
[0052] In this application, the design employing positioning holes 5, positioning bolts 6, and nuts ensures precise alignment of the perforated windows 3 when the upper panel 1 and lower panel 2 are fastened together. When the positioning holes 5 on the opposite edges of the upper panel 1 and lower panel 2 are connected by the positioning bolts 6 and nuts, this stable mechanical connection not only improves the reliability of the connection but also guarantees the accuracy of the relative positional relationship between the two panels. This ensures that the upper and lower perforated windows 3 remain precisely aligned during the double-sided electrode fabrication process, providing a stable positioning basis for subsequent plasma spraying operations. This solves the problem of low alignment accuracy of the two-sided electrodes caused by manual flipping and secondary positioning in existing technologies, effectively improving the overall product quality, reducing the scrap rate due to inaccurate positioning, and lowering production costs.
[0053] In one alternative embodiment, the positioning holes 5 are connected and disposed on two opposite edges of the panel. For example... Figure 1 As shown, the positioning holes 5 are respectively connected to the left and right edges of the top panel 1 and the left and right edges of the bottom panel 2. When connected by the positioning bolts 6 and nuts, the top panel 1 and the bottom panel 2 can be connected and fixed, and the fabric can be clamped in the middle position.
[0054] In this application, the positioning holes 5 on the opposite edges provide a more uniform distribution of connection force when the panels are fastened, making the connection between the upper panel 1 and the lower panel 2 more stable and avoiding loosening or deformation caused by excessive local stress. It also provides greater flexibility and convenience for the installation and adjustment of the connecting components. In different production scenarios and workbench configurations, operators can select the appropriate positioning holes 5 for connection according to actual needs, thereby achieving rapid assembly and precise positioning of the shielding device, improving the versatility and adaptability of the equipment. Furthermore, the layout of the positioning holes 5 on the opposite edges also helps to improve the overall stability of the entire shielding device. When subjected to external impacts or vibrations, it can better disperse stress, reduce the risk of panel displacement or damage, ensure the smooth progress of the double-sided electrode preparation process, and guarantee product quality and production stability.
[0055] In one optional embodiment, the mating surfaces of the upper panel 1 and the lower panel 2 are both polished flat surfaces. The surfaces of the upper panel 1 and the lower panel 2 that contact the montmorillonite fiberglass fabric are both flat structures and are polished to ensure that the montmorillonite fiberglass fabric is not damaged during clamping and spraying.
[0056] In this application, the mating surfaces of the upper panel 1 and the lower panel 2 are designed with polished surfaces, which minimizes friction and pressure between the panels and the PVC-U fiberglass fabric. During clamping and mating, the smooth, flat surface of the polished surface prevents scratches, abrasions, or other damage to the fabric, protecting the surface structural integrity of the PVC-U fiberglass fabric and ensuring its performance stability in subsequent electrothermal applications. Furthermore, this smooth mating surface facilitates easy removal of the fabric from the panel after a production cycle, avoiding issues such as fabric adhesion and residue caused by panel surface roughness. This improves production efficiency, extends the service life of both the fabric and the panel, and ensures smooth production processes.
[0057] In one alternative implementation, such as Figure 3 As shown, a positioning groove 7 is provided on the side of the panel away from the fastening surface, and it is connected to the hollow window 3; both the upper panel 1 and the lower panel 2 are provided with positioning grooves 7.
[0058] The support plate 4 is adapted to be snapped into the positioning groove 7 and extends into the hollow window 3. The positioning groove 7 can be arranged parallel to the hollow window 3.
[0059] In one alternative implementation, such as Figure 2 and Figure 4 As shown, the support plate 4 is an inverted T-shape, with its bottom end snapped into the positioning groove 7 and its top end completely filling the hollow window 3.
[0060] In this application, the positioning groove 7, located on the side of the panel away from the fastening surface and communicating with the perforated window 3, and the support plate 4, being an inverted T-shape with its bottom end snapped into the positioning groove 7 and its top end completely filling the perforated window 3, offer several significant advantages. First, the mating structure of the positioning groove 7 and the support plate 4 effectively increases the connection stability between the shielding device and the worktable. During plasma spraying, the support plate 4, snapped into the positioning groove 7, prevents relative movement between the panel and the support plate 4 during spraying, thus ensuring the accuracy and continuity of the spraying operation. Second, the top end of the support plate 4 completely filling the perforated window 3 further guarantees the accuracy of the spraying operation.
[0061] In one alternative embodiment, the top surface of the support plate 4 is flush with the mating surface of the panel.
[0062] In this application, the top surface of the support plate 4 is flush with the fastening surface of the panel, which not only makes the overall appearance of the device more beautiful and neat, but also provides better support for the fabric.
[0063] In one optional embodiment, the positioning groove 7 is a through groove and is provided along the extending direction of the hollow window 3.
[0064] In this application, the through-slot design allows the support plate 4 to be inserted more smoothly into the positioning slot 7 during the snap-fit process, reducing the operational difficulty and time cost during assembly and improving production efficiency. The extension direction of the through-slot is consistent with that of the perforated window 3, which can better guide the installation position of the support plate 4, ensuring that the support plate 4 fills the perforated window 3 more accurately and evenly when it mates with the panel, further enhancing the stability of the shielding device during operation. At the same time, this through-slot structure facilitates quick disassembly when the support plate 4 needs to be adjusted or replaced, improving the flexibility and maintainability of the equipment. This allows the entire shielding device to better adapt to different production needs and process requirements, extending the service life of the equipment and reducing the equipment replacement costs for enterprises.
[0065] In one alternative implementation, such as Figure 2 As shown, reinforcing ribs 8 are provided on the surfaces of the upper panel 1 and the lower panel 2 that are away from the fastening surface.
[0066] In this application, reinforcing ribs 8 are provided on the surfaces of the upper panel 1 and lower panel 2 away from the fastening surface, which can significantly improve the structural strength and stability of the shielding device. During plasma spraying, the shielding device needs to withstand complex conditions such as high temperature, high pressure, and the impact of the spraying flame. Long-term exposure to heat and mechanical stress can easily cause the panel to bend and deform. The design of the reinforcing ribs 8 effectively disperses these forces, enhances the bending resistance of the panel, and enables it to maintain its original shape and dimensional accuracy in high-temperature environments, thereby ensuring the accuracy of the position of the perforated window 3 and the tight fit between it and the PVC fiberglass fabric. This not only improves the processing quality of the product and reduces the generation of waste products due to tooling deformation, but also extends the service life of the shielding device, reduces the frequency and cost of equipment replacement for enterprises, and ensures the continuity and economy of the production process.
[0067] The specific operating procedure is as follows: Place the montmorillonite fiberglass fabric on the lower plate, flip the upper plate to fit against the lower plate, and insert the positioning bolts 6 on both sides. Connect the positioning holes 5 on the corresponding edges of the upper plate 1 and the lower plate 2, and fix them with nuts. Place the support plate 4 on the worktable according to the electrode spacing, that is, the distance between the hollow windows 3 on the upper plate 1 or the lower plate 2. According to the position of the positioning groove 7 on the lower plate, place the plate with the montmorillonite fiberglass fabric on the support plate 4. The positioning groove 7 on the lower plate is engaged with the support plate 4 for positioning. Perform plasma spraying to prepare a single-sided copper electrode coating. After the single-sided copper electrode coating is prepared, flip the fixture, and exchange the positions of the upper and lower plates. According to the position of the positioning groove 7 on the upper plate, place the plate with the montmorillonite fiberglass fabric on the support plate 4. The positioning groove 7 on the upper plate is engaged with the support plate 4 for positioning. Repeat the spraying operation. After the spraying is completed, remove the positioning bolts 6 on both sides to finally obtain the montmorillonite fiberglass fabric with double-sided electrodes.
[0068] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.
Claims
1. A shielding device for fabricating double-sided electrodes, characterized in that, include: The panel, including the upper panel (1) and the lower panel (2), is provided with a cutout window (3); The connecting component is adapted to fasten the upper panel (1) and the lower panel (2), and when the upper panel (1) and the lower panel (2) are fastened together, the cutout windows (3) on the upper panel (1) and the lower panel (2) overlap. The support plate (4) is set on the workbench and is suitable for insertion into the hollow window (3).
2. The shielding device for fabricating double-sided electrodes according to claim 1, characterized in that, The connection component includes: Positioning holes (5) are provided at least on two edges of the panel, and at least two positioning holes (5) are provided at each edge position; The positioning bolts (6) and nuts are used to connect the positioning holes (5) on the opposite edges of the upper panel (1) and lower panel (2) when the upper panel (1) and lower panel (2) are fastened together.
3. The shielding device for fabricating double-sided electrodes according to claim 2, characterized in that, The positioning holes (5) are connected and disposed on the two opposite edges of the panel.
4. The shielding device for fabricating double-sided electrodes according to claim 1, characterized in that, The mating surfaces of the upper panel (1) and the lower panel (2) are both polished planes.
5. The shielding device for fabricating double-sided electrodes according to claim 1, characterized in that, A positioning groove (7) is provided on the side of the panel away from the fastening surface, and it communicates with the hollow window (3); The support plate (4) is adapted to be snapped into the positioning groove (7) and extends into the hollow window (3).
6. The shielding device for fabricating double-sided electrodes according to claim 5, characterized in that, The support plate (4) is an inverted T-shape, with its bottom end locked in the positioning groove (7) and its top end completely filling the hollow window (3).
7. The shielding device for fabricating double-sided electrodes according to claim 1 or 6, characterized in that, The top surface of the support plate (4) is flush with the mating surface of the panel.
8. The shielding device for fabricating double-sided electrodes according to claim 5, characterized in that, The positioning groove (7) is a through groove and is set along the extension direction of the hollow window (3).
9. The shielding device for fabricating double-sided electrodes according to claim 1, characterized in that, The surfaces of the upper panel (1) and the lower panel (2) that are away from the fastening surface are provided with reinforcing ribs (8).