Dust removal brushes and safe dust removal methods based on ash balance protection

Abstract

This application relates to the field of electronic equipment cleaning tools, and proposes a dust removal brush based on ash electrical balance protection and a safe dust removal method. The dust removal brush based on ash electrical balance protection includes: a brush handle with a hollow internal structure; an electrostatic discharge rod disposed inside the brush handle, one end of which is connected to an external grounding terminal; a three-layer composite flexible brush head disposed at the dust removal end of the brush handle, the three layers of which sequentially include a conductive base layer, an elastic soft base layer, and a micro-adhesive layer, the conductive base layer being electrically connected to the other end of the electrostatic discharge rod; and a micro-adhesive sheet detachably attached to the surface of the micro-adhesive layer, the adhesive configuration of which selectively adsorbs loose floating dust while retaining a thin, weakly conductive ash layer on the equipment surface. This dust removal brush can efficiently remove dust and actively discharge static electricity without damaging the weakly conductive ash layer, providing a safe and reliable cleaning and maintenance method for precision electronic equipment, power cabinets, etc.

Description

Technical Field

[0001] This application relates to the field of electronic device cleaning tools, and more specifically, to a dust removal brush based on ash balance protection and a safe dust removal method. Background Technology

[0002] In fields such as precision electronic equipment, high-voltage electrical equipment, and semiconductor manufacturing, the cleaning and maintenance of equipment surfaces is crucial. Over time, a layer of dust typically accumulates on the surfaces of equipment that has been in operation for a long period. If this dust is not cleaned in a timely manner, it can lead to poor heat dissipation, increased contact resistance, or even short circuits.

[0003] Traditional hard-bristle brushes or air-blowing dust collectors primarily remove dust from equipment surfaces through friction from rigid bristles or high-pressure airflow, and are currently the most common dust removal methods. However, these methods instantly disrupt the "ash electrical balance" steady state formed by the long-term operation of electronic equipment. Ash electrical balance refers to the thin, weakly conductive layer of dust that accumulates on the equipment surface. This layer acts as a natural buffer, suppressing electrostatic breakdown, dispersing high-voltage electric fields, and reducing the risk of short circuits. Blindly and thoroughly cleaning the dust directly damages this long-established protective structure, leading to abrupt changes in insulation performance and an unbalanced electric field distribution after cleaning. This can easily trigger serious electrical faults such as electrostatic breakdown, poor contact, short circuits, creepage, and high-voltage breakdown, and may even cause permanent damage to the equipment.

[0004] Existing flexible cleaning tools only reduce frictional static electricity by using flexible materials, which essentially only solves the surface problem of "low static electricity". They cannot quickly discharge residual static electricity generated during the cleaning process and static charge accumulated in the equipment over a long period of time. There is still a risk of electrostatic discharge damaging sensitive components, which is difficult to meet the extremely high requirements for ESD protection in semiconductor, chip manufacturing and other scenarios.

[0005] Therefore, how to provide a cleaning tool that can effectively remove the static charge generated by cleaning friction and avoid electrostatic damage, while retaining the thin, weakly conductive dust layer on the surface of the equipment for protection, and also has flexible adhesion and maintainability, is a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0006] To address at least one of the aforementioned technical problems, the first aspect of this application proposes a dust removal brush based on ash electrical balance protection.

[0007] The second aspect of this application proposes a safe dust removal method based on ash electrical balance protection.

[0008] In view of this, the first aspect of this application proposes a dust removal brush based on ash electrical balance protection, comprising: a brush handle with a hollow internal structure; an electrostatic discharge rod disposed inside the brush handle, one end of which is used to connect to an external grounding terminal; a three-layer composite flexible brush head disposed at the dust removal end of the brush handle, the three-layer composite flexible brush head comprising, in sequence, a conductive base layer, an elastic soft base layer, and a micro-adhesive layer, the conductive base layer being electrically connected to the other end of the electrostatic discharge rod; and a micro-adhesive sheet detachably attached to the surface of the micro-adhesive layer, the adhesive configuration of the micro-adhesive sheet being selectively adsorbing loose floating dust while retaining a thin layer of weakly conductive dust on the surface of the equipment.

[0009] In conjunction with the first aspect, in some feasible ways, the brush handle includes: a grip portion, the surface of which is provided with a rubber anti-slip layer.

[0010] In conjunction with the first aspect, in some feasible ways, the micro-adhesive sheet is detachably attached to the surface of the micro-adhesive layer by adhesive backing, snap-fit, or magnetic adsorption.

[0011] In conjunction with the first aspect, in some feasible methods, the dust removal brush based on ash electrical balance protection also includes: a grounding hole, which is located at the tail end of the brush handle, and the inner wall of the grounding hole is provided with a conductive element and is electrically connected to one end of the static discharge rod.

[0012] In conjunction with the first aspect, in some feasible methods, the impedance range of the electrostatic discharge rod is: 10. 6 ~10 8 Ω; Peel force range of micro-adhesive pads: 0.01N / cm~0.05N / cm; Hardness range of three-layer composite flexible brush head: Shore A20~30.

[0013] In conjunction with the first aspect, in some feasible ways, the edge of the micro-adhesive sheet extends to at least one non-adhesive lifting tab, which is integrally formed with the micro-adhesive sheet.

[0014] In conjunction with the first aspect, in some feasible methods, the dust removal brush based on ash balance protection also includes: a mounting groove, set at the front end of the brush handle, the conductive base layer of the three-layer composite flexible brush head embedded in the mounting groove, and a through hole for the electrostatic discharge rod to pass through the bottom of the mounting groove.

[0015] In conjunction with the first aspect, in some feasible ways, the electrostatic discharge rod is a conductive carbon fiber rod or a copper core.

[0016] In conjunction with the first aspect, in some feasible ways, the surface of the micro-adhesive patch has micron-sized pits or protrusions.

[0017] The second aspect of this application proposes a safe dust removal method based on ash electrical balance protection, employing a dust removal brush based on ash electrical balance protection as described in any of the above technical solutions, comprising the following steps: Before cleaning, connect the static discharge rod at the end of the brush handle to the external grounding terminal to form a static discharge circuit; Hold the brush handle and make the micro-adhesive sheet attached to the three-layer composite flexible brush head contact the surface of the equipment and move relative to it to selectively adsorb loose floating dust on the surface of the equipment, while retaining a thin layer of weakly conductive dust on the surface of the equipment. During the dust removal process, the conductive substrate receives static electricity generated by friction and discharges the static electricity to the external grounding terminal through the static discharge rod.

[0018] Compared with related technologies, this application has the following technical advantages: The dust removal brush based on ash electrical balance protection provided in this application includes a brush handle, an electrostatic discharge rod, a three-layer composite flexible brush head, and a micro-adhesive sheet. The three-layer composite flexible brush head sequentially comprises a conductive base layer, an elastic soft base layer, and a micro-adhesive layer. Through a reliable connection between the electrostatic discharge rod and an external grounding terminal, a low-impedance electrostatic discharge path is constructed for the brush head and the surface of the cleaned equipment. This allows for the rapid and real-time discharge of residual static electricity generated during the dust removal process and static electricity accumulated on the equipment to the grounding terminal, eliminating the risk of static electricity accumulation and making it suitable for precision electronic environments with extremely high anti-static requirements.

[0019] This dust removal brush can efficiently remove dust and actively discharge static electricity without damaging the weakly conductive dust layer, providing a safe and reliable cleaning and maintenance method for precision electronic equipment, power cabinets, etc.

[0020] Additional aspects and advantages of this application will become apparent in the following description or may be learned by practice of this application. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 A schematic diagram of the structure of a dust removal brush based on ash electrical balance protection in one embodiment of this application is shown; Figure 2 A flowchart illustrating a safe dust removal method based on ash electrical balance protection in one embodiment of this application is shown.

[0022] in, Figure 1 The correspondence between the reference numerals and component names in the attached drawings is as follows: 100 Brush handle, 102 Grip, 110 Static discharge rod, 120 Conductive base layer, 130 Elastic soft base layer, 140 Micro-adhesive layer, 150 Micro-adhesive sheet, 160 Grounding hole. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0025] The following reference Figure 1 and Figure 2 This application describes a dust removal brush and a safe dust removal method based on ash balance protection according to some embodiments.

[0026] like Figure 1 As shown, the first aspect of this application provides a dust removal brush based on ash electrical balance protection, comprising: a brush handle 100 with a hollow internal structure; an electrostatic discharge rod 110 disposed inside the brush handle 100, one end of which is used to connect to an external grounding terminal; a three-layer composite flexible brush head disposed at the dust removal end of the brush handle 100, the three-layer composite flexible brush head comprising, in sequence, a conductive base layer 120, an elastic soft base layer 130, and a micro-adhesive layer 140, the conductive base layer 120 being electrically connected to the other end of the electrostatic discharge rod 110; and a micro-adhesive sheet 150 detachably attached to the surface of the micro-adhesive layer 140, the adhesive configuration of the micro-adhesive sheet 150 being configured to selectively adsorb loose floating dust and retain a thin layer of weakly conductive dust on the surface of the equipment.

[0027] The dust removal brush based on ash electrical balance protection provided in this application includes a brush handle 100, an electrostatic discharge rod 110, a three-layer composite flexible brush head, and a micro-adhesive sheet 150. The three-layer composite flexible brush head sequentially includes a conductive base layer 120, an elastic soft base layer 130, and a micro-adhesive layer 140. Through the reliable connection between the electrostatic discharge rod 110 and the external grounding terminal, a low-impedance electrostatic discharge path is constructed for the brush head and the surface of the cleaned equipment. This allows for the rapid discharge of residual static electricity generated during the dust removal process and the static electricity accumulated on the equipment to the grounding terminal in real time, eliminating the risk of static electricity accumulation and making it suitable for precision electronic scenarios with extremely high anti-static requirements.

[0028] The flexible soft base layer 130 can adapt to different curved surfaces and uneven structures, avoiding physical damage to precision components caused by hard brushing or scraping. At the same time, it avoids crushing fragile components through flexible buffering, providing comprehensive protection for the structural safety and performance integrity of precision equipment.

[0029] The micro-adhesive layer 140 provides a stable adhesion substrate for the micro-adhesive patch 150, enabling flexible replacement of functional modules, extending brush head lifespan, and reducing maintenance costs. The collaborative design of the three-layer structure addresses multiple needs such as conductive discharge, flexible adhesion, and functional expansion.

[0030] The controllable micro-adhesive properties of the micro-adhesive pad 150 efficiently adsorb and remove loose dust from equipment surfaces while retaining a thin, weakly conductive dust layer. This thin dust layer forms a natural electrostatic dissipation channel on the equipment surface, maintaining the original dust electrical stability and avoiding dust layer damage and abrupt changes in insulation performance caused by traditional dust removal methods. It also prevents electrical faults such as short circuits, breakdowns, and creepages that may occur after dust removal, ensuring the long-term operational stability of high-voltage and precision electronic equipment. The micro-adhesive pad 150 is removable and replaceable, maintaining a stable cleaning effect over a long period while reducing overall replacement costs. Users can select different adhesive pads based on the degree of contamination, flexibly addressing various scenario requirements.

[0031] The dust removal brush based on ash balance protection provided in this application can efficiently remove dust and actively discharge static electricity without damaging the weakly conductive ash layer, providing a safe and reliable cleaning and maintenance method for precision electronic equipment, power cabinets, etc.

[0032] like Figure 1 As shown, in some embodiments provided in this application, the brush handle 100 includes a grip portion 102, the surface of which is provided with a rubber anti-slip layer.

[0033] In this embodiment, the rubber anti-slip layer on the surface of the grip 102 improves the operator's grip stability. During dust removal operations, the operator's hands inevitably produce sweat or oil. The rubber anti-slip layer, with its high coefficient of friction, can effectively resist the risk of slipping under wet and slippery conditions, ensuring that the brush head maintains stable contact pressure and movement trajectory with the equipment surface, thereby ensuring the uniformity and consistency of the dust removal operation.

[0034] Meanwhile, the rubber material itself possesses excellent electrical insulation properties, which, combined with the hollow insulating structure of the brush handle 100, further enhances the insulation protection level of the operating end. This effectively blocks the path of static electricity from the human body being conducted to the brush head through the grip part 102, preventing interference with the equipotential discharge function of the brush head due to a charged human body. In addition, the rubber anti-slip layer also has a certain cushioning and shock absorption effect, which can reduce hand fatigue during long-term operation, improve operating comfort, and is suitable for dust removal scenarios that require repeated and precise operations.

[0035] In some embodiments provided in this application, the micro-adhesive sheet 150 is detachably attached to the surface of the micro-adhesive layer 140 by adhesive backing, snap-fit, or magnetic adsorption.

[0036] In this embodiment, the micro-adhesive patch 150 employs three detachable connection methods: adhesive-backed adhesion, snap-fit, or magnetic adsorption, providing users with flexible assembly options. Adhesive-backed adhesion offers advantages such as a large contact area and strong adhesion, making it suitable for equipment surfaces with high flatness. It ensures that the micro-adhesive patch 150 is not easily detached during high-speed dust removal, guaranteeing stable output of selective dust removal effects. Snap-fit, on the other hand, eliminates the need for adhesives, enabling quick assembly and disassembly and repeated replacement of the micro-adhesive patch 150. This avoids secondary contamination of the equipment surface by adhesive residue, making it particularly suitable for cleaning precision equipment with high cleanliness requirements. Magnetic adsorption utilizes magnetic force for rapid positioning and stable connection. Installation and replacement are convenient and quick, allowing for precise adsorption without the need for alignment. This is especially suitable for high-frequency dust removal operations requiring frequent patch replacement, while also avoiding contact damage to the equipment surface caused by adhesive residue and mechanical snap-fit.

[0037] The micro-adhesive pad 150 can be replaced independently according to actual working conditions, eliminating the need to replace the entire three-layer composite flexible brush head, significantly reducing consumable costs. Furthermore, operators can select micro-adhesive pads 150 with different adhesive strengths to suit different dust characteristics, enhancing the dust removal brush's adaptability to varying working conditions and improving the overall practicality and economy of the solution.

[0038] like Figure 1 As shown, in some embodiments provided in this application, the dust removal brush based on ash balance protection further includes: a grounding hole 160, which is disposed at the tail end of the brush handle 100. The inner wall of the grounding hole 160 is provided with a conductive element and is electrically connected to one end of the static discharge rod 110.

[0039] In this embodiment, the dust removal brush based on ash balance protection also includes a grounding hole 160. The grounding hole 160 is located at the tail end of the brush handle 100, and its inner wall conductive element is directly electrically connected to the static discharge rod 110, providing a standardized and quick-access interface for external grounding cables. The tail end layout allows the grounding cable to extend along the axis of the brush handle 100, avoiding interference from lateral wiring on the operating space. Simultaneously, the conductive element ensures low-impedance and reliable contact between the grounding hole 160 and the discharge rod, ensuring that static charge can be efficiently and stably conducted to the ground, thus strengthening the electrical reliability of the ash balance protection from a structural perspective.

[0040] In some embodiments provided in this application, the impedance range of the electrostatic discharge rod 110 is: 10. 6 ~10 8 Ω; Peel force range of micro-adhesive sheet 150: 0.01N / cm~0.05N / cm; Hardness range of three-layer composite flexible brush head: Shore A20~30.

[0041] In this embodiment, the impedance range of the electrostatic discharge rod 110 is: 10. 6 ~108 Ω ensures a balance between static discharge efficiency and insulation, avoiding the risk of static accumulation or leakage. The micro-adhesive pad 150 has a peel force range of 0.01N / cm to 0.05N / cm, achieving precise "selective dust adhesion," ensuring effective cleaning without damaging the protective thin dust layer. The three-layer composite flexible brush head has a hardness range of Shore A20 to 30, giving it sufficient flexibility to adapt to complex curved surfaces while maintaining necessary structural support, preventing soft deformation or hard scratching damage.

[0042] In some embodiments provided in this application, at least one non-adhesive lifting tab extends from the edge of the micro-adhesive patch 150, and the lifting tab is integrally formed with the micro-adhesive patch 150.

[0043] In this embodiment, the non-adhesive lifting tabs integrally formed at the edge of the micro-adhesive patch 150 provide operators with a convenient, touchless removal method. When the micro-adhesive patch 150 becomes saturated with dust and needs to be replaced, the operator only needs to pinch the lifting tabs to completely peel it off from the surface of the micro-adhesive layer 140. The entire process requires no finger contact with the adhesive area, effectively preventing contamination of the micro-adhesive layer 140 by finger oils or sweat, ensuring that the adhesion performance of the next micro-adhesive patch 150 is not affected, and maintaining the long-term stability of the selective dust removal function.

[0044] The one-piece molded structure eliminates the weak points in the connection between the lifting tab and the micro-adhesive sheet 150, preventing the tab from breaking or falling off during repeated peeling and detachment, thus ensuring consistent operation and durability. Simultaneously, the presence of at least one lifting tab ensures a clear peeling direction, allowing operators to peel smoothly along the preset direction. This avoids uneven force that could cause residue at the edges of the micro-adhesive sheet 150 or damage to the micro-adhesive layer 140, significantly improving the efficiency and controllability of consumable replacement.

[0045] In some embodiments provided in this application, the dust removal brush based on ash balance protection further includes: a mounting groove disposed at the front end of the brush handle 100, the conductive base layer 120 of the three-layer composite flexible brush head being embedded in the mounting groove, and a through hole for the electrostatic discharge rod 110 to pass through the bottom of the mounting groove.

[0046] In this embodiment, the structure of the mounting groove embedding the conductive base layer 120 provides reliable mechanical fixation and precise positioning for the three-layer composite flexible brush head. The conductive base layer 120 is tightly constrained inside the groove, effectively preventing the brush head from loosening or shifting due to repeated friction and vibration during dust removal operations, ensuring that the micro-adhesive layer 140 always maintains a stable contact posture with the equipment surface. At the same time, the sidewall of the mounting groove forms a uniform confining pressure support for the elastic soft base layer 130, enabling the brush head to maintain consistent contact pressure when adhering to surfaces with different curvatures, ensuring the uniformity and repeatability of selective dust removal effects, and significantly improving the overall structural stability and durability of the brush head assembly.

[0047] The through-hole at the bottom of the groove allows the electrostatic discharge rod 110 to pass through the groove bottom without bending and connect to the conductive base layer 120, ensuring a continuous and low-impedance electrostatic discharge path from the brush head to the grounding end. This avoids increased contact resistance or mechanical stress concentration problems caused by the discharge rod being forced to bend at the bottom of the groove. The through-hole also provides radial restraint for the discharge rod, preventing axial movement and further enhancing the reliability of the electrical connection. This design integrates mechanical fixing and electrical conduction functions into the same structure, achieving efficient and reliable assembly between the brush handle 100 and the brush head.

[0048] In some embodiments provided in this application, the static discharge rod 110 is a conductive carbon fiber rod or a copper core.

[0049] In this embodiment, the conductive carbon fiber rod features low density and high strength, significantly reducing the overall weight of the brush handle 100 while ensuring excellent conductivity. This reduces the burden on the operator's hands during prolonged operation. Furthermore, the carbon fiber material is corrosion-resistant and fatigue-resistant, making it suitable for high-frequency use. The copper core, with its extremely low resistivity, provides an optimal conductive path for electrostatic discharge, ensuring that static charge is quickly conducted to the ground with minimal loss. Simultaneously, copper's good flexibility facilitates the installation of wiring within the hollow brush handle 100, resulting in lower processing costs. These two material options offer users a flexible choice between lightweight design and high performance, accommodating diverse needs for weight, conductivity efficiency, and economy under different operating conditions.

[0050] In some embodiments provided in this application, the surface of the micro-adhesive patch 150 is provided with micron-sized pits or protrusions.

[0051] In this embodiment, by creating micron-level pits or protrusions on the surface of the micro-adhesive patch 150, the actual contact area between the micro-adhesive patch 150 and the device surface can be effectively reduced. This allows for precise control of adhesion force, preventing over-adhesion from damaging the thin, weakly conductive dust layer on the device surface and achieving dust balance protection. Simultaneously, this microstructure reduces the interfacial bonding strength between the adhesive and the device surface, enabling the micro-adhesive patch 150 to detach completely without adhesive residue during peeling, thus avoiding secondary contamination. Furthermore, the microchannels formed by the pits and protrusions facilitate the embedding of adsorbed fine dust particles, improving the efficiency of floating dust capture and preventing large-area static friction between the micro-adhesive patch 150 and the device surface, further reducing the risk of static electricity generation. This makes it suitable for non-destructive cleaning of precision electronic components.

[0052] like Figure 2 As shown, the second aspect of this application provides a safe dust removal method based on ash balance protection, employing a dust removal brush based on ash balance protection as described in any of the above embodiments, comprising the following steps: S202: Before cleaning, connect the static discharge rod at the end of the brush handle to the external grounding terminal to form a static discharge circuit; S204: Hold the brush handle so that the micro-adhesive sheet attached to the three-layer composite flexible brush head contacts the surface of the equipment and moves relative to it to selectively adsorb loose floating dust on the surface of the equipment while retaining a thin layer of weakly conductive dust on the surface of the equipment. S206: During the dust removal process, the conductive base layer receives static electricity generated by friction and discharges the static electricity to the external grounding terminal through the static discharge rod.

[0053] The safe dust removal method based on ash electrical balance protection provided in this application pre-connects the electrostatic discharge rod to the external grounding terminal to construct a complete discharge circuit before dust removal. During the dust removal process, the conductive substrate captures the static electricity generated by friction in real time and quickly conducts it to the grounding terminal through the electrostatic discharge rod, suppressing the static electricity accumulation effect from the source and strictly controlling the static voltage during the dust removal process within a safe range. This avoids the risk of electrostatic discharge damaging sensitive electronic components such as PCB chips and semiconductor devices, meets ESD protection standards, and is suitable for precision electronic and semiconductor manufacturing scenarios with extremely high anti-static requirements.

[0054] The controllable micro-adhesion of the micro-adhesive pad enables selective cleaning, removing only loose floating ash and dust particles from the equipment surface while completely preserving the stable, weakly conductive thin ash layer formed during long-term operation. This maintains the original ash electrical steady state and fundamentally avoids the problems of ash layer damage, abrupt changes in insulation performance, and imbalance in electric field distribution caused by traditional cleaning methods. It also avoids electrical faults such as short circuits, creepage, and high-voltage breakdown after cleaning, ensuring the long-term operational stability of high-voltage electrical equipment and precision electronic equipment.

[0055] The three-layer composite flexible brush head adapts to the complex curved surfaces and uneven structures of the equipment, achieving pressureless and seamless dust removal. This completely avoids physical damage such as component scratches, pin deformation, and lens coating damage caused by hard brushes and scraping. At the same time, the micro-adhesive pads efficiently adsorb micron-level fine dust, resulting in no dust, no residue, and no secondary pollution. After dust removal, the equipment surface is clean and residue-free, eliminating the need for subsequent cleaning procedures and achieving efficient closed-loop cleaning.

[0056] In practical applications, the end of the electrostatic discharge rod 110 near the tail of the brush handle 100 is equipped with a flexible telescopic contact. This contact is used to abut against the grounding hole 160 or grounding clamp of the external grounding terminal. The flexible telescopic contact allows the electrostatic discharge rod 110 to adapt to different grounding terminal interface forms. Whether it's the grounding hole 160 or the grounding clamp, a stable and reliable electrical connection can be achieved through flexible telescopic movement, eliminating the need for precise manual alignment and making operation simple and quick. Simultaneously, the flexible contact automatically compensates for minor positional deviations during contact, ensuring a full fit of the contact surface, maintaining the continuity of the low-impedance discharge circuit, and avoiding the risk of electrostatic accumulation due to poor contact. Compatibility with multiple grounding methods significantly improves the tool's versatility and adaptability in different working scenarios, ensuring the reliability and consistency of electrostatic discharge.

[0057] like Figure 1 As shown in the specific embodiment, the dust removal brush based on ash electrical balance protection provided in this application is a segmented flexible micro-adhesive dust removal brush, which is composed of four core components: brush handle 100, electrostatic discharge rod 110, three-layer composite flexible brush head, and micro-adhesive sheet 150. The connection relationship, structural details and working principle of each component are as follows: Brush handle 100 and static discharge rod 110: integrated anti-static grip structure.

[0058] Structural Design: The brush handle 100 is made of insulating and non-slip materials, such as anti-static PP and rubber non-slip sleeves, which conform to ergonomic design and improve grip comfort. The brush handle 100 integrates an electrostatic discharge rod 110. The rod body is made of highly conductive carbon fiber or conductive copper core material. One end of the electrostatic discharge rod 110 is electrically connected to the conductive base layer 120 of the three-layer composite flexible brush head, and the other end extends to the tail of the brush handle 100, which can be connected to an external grounding terminal. The grounding section can be an anti-static wrist strap or grounding clip to form a complete electrostatic discharge circuit.

[0059] Working principle: During the cleaning process, the residual static electricity generated by the brush head and the static electricity accumulated by the equipment are conducted to the static discharge rod 110 through the conductive layer and quickly discharged to the grounding terminal, completely eliminating the risk of static electricity accumulation, avoiding static electricity breakdown of sensitive electronic components from the source, meeting ESD protection standards, and suitable for precision electronic scenarios with extremely high anti-static requirements.

[0060] Three-layer composite flexible brush head: the core structure for non-destructive dust removal.

[0061] The brush head adopts a three-layer composite structure consisting of a conductive base layer 120, an elastic soft base layer 130, and a micro-adhesive layer 140. The functions of each layer are as follows: Conductive base layer 120: Made of conductive fiber / conductive adhesive layer material, electrically connected to the static discharge rod 110, serving as the core carrier for static electricity conduction, quickly discharging static electricity generated during the dust removal process in real time, and providing structural support for the elastic soft base layer 130.

[0062] Elastic Soft Base Layer 130: Made of highly elastic silicone / foam material, it has excellent deformation capability and can adapt to the complex curved surfaces and uneven structures of electronic devices (such as pin gaps and chip corners), achieving pressureless and adhesive dust removal, avoiding physical damage to components caused by hard brushing or scraping (such as pin deformation, chip scratches, and lens coating damage), and providing all-round protection for the safety of precision equipment.

[0063] Micro-adhesive layer 140: Used to mount micro-adhesive patch 150.

[0064] Micro-adhesive Patch 150: Replaceable consumable.

[0065] Structural Design: The micro-adhesive patch 150 adopts an adhesive-backed or snap-on design, which can be quickly pasted or snapped onto the micro-adhesive layer 140 of the three-layer composite brush head. It can be replaced at any time as an independent consumable. The patch size, adhesiveness, and material can be customized according to different application scenarios.

[0066] For PCB circuit boards and electronic components: medium to low viscosity, high adhesion patch, brush head shape is conventional rectangular or flat, adapted to flat circuit boards, covering a large area, accurately cleaning dust while protecting dust layer and components. For high-voltage electrical equipment: use low-adhesion, anti-static patches to prioritize ash electrical balance and avoid breakdown faults after ash removal; For optical lenses and precision instruments: Ultra-low viscosity, residue-free adhesive patches are used, which can be circular or arc-shaped to fit curved surfaces, allowing for pressureless cleaning, achieving non-damaging dust removal, and protecting optical coatings.

[0067] Working principle: The micro-adhesive patch 150 is used as a consumable. After it fails, it only needs to be peeled off and replaced. The main body of the brush head can be reused, which greatly reduces the long-term use cost. At the same time, patches with different parameters can be quickly replaced according to the scenario, realizing one brush for multiple uses and improving the adaptability and versatility of the tool.

[0068] The overall workflow and collaboration principles are as follows: Electrostatic protection throughout the entire chain: Before cleaning, the electrostatic discharge rod 110 at the tail of the brush handle 100 is connected to the grounding terminal to form a complete discharge circuit; during the cleaning process, the conductive base layer 120 of the three-layer composite brush head conducts static electricity in real time, which is quickly discharged through the electrostatic discharge rod 110, suppressing frictional charging from the source and eliminating the risk of electrostatic discharge.

[0069] Precise maintenance through ash electrical balance: The controllable adhesion of the micro-adhesive patch 150 enables selective ash removal, removing only surface dust while preserving a stable, weakly conductive thin ash layer, maintaining ash electrical stability, and preventing electrical faults such as short circuits and breakdowns after ash removal from the root.

[0070] Non-destructive flexible dust removal: The elastic soft base layer 130 adapts to complex structures, enabling pressureless, adhesive dust removal and avoiding damage to components; at the same time, the micro-adhesive sheet 150's microstructured adhesive efficiently adsorbs dust, eliminating dust and secondary pollution, achieving closed-loop cleaning.

[0071] Modular consumable maintenance: The micro-adhesive pads can be replaced independently, and the main body of the brush head can be reused, which greatly reduces the cost of use; the pads can be flexibly replaced according to the scenario to adapt to the different dust cleaning needs of multiple scenarios, improving the practicality and economy of the tool.

[0072] The principle of solving technical problems: (1) Ash balance protection principle: Through the controllable micro-adhesion of the micro-adhesive sheet 150, "selective ash removal" is achieved: only loose floating ash and dust particles on the surface of the equipment are removed, while the stable weakly conductive thin ash layer naturally formed during long-term operation of the equipment is completely preserved, maintaining the original ash electrical steady state. This avoids the ash layer damage and sudden change in insulation performance caused by traditional ash removal methods (such as brushes and compressed air) from the root, and completely eliminates electrical faults such as short circuits, breakdowns, and creepages that occur after ash removal, ensuring the long-term operational stability of high-voltage and precision electronic equipment.

[0073] (2) Dual protection principle of low static electricity and static discharge: source suppression: micro-adhesive adsorption is used to replace traditional friction cleaning, which fundamentally reduces the friction electrification effect, greatly reduces the amount of static electricity generated during the cleaning process, and avoids static electricity breakdown of sensitive electronic components, such as PCB chips and semiconductor devices. Real-time discharge: The tool has a built-in electrostatic discharge rod 110, which can quickly discharge residual static electricity generated during the dust removal process and static electricity accumulated in the equipment to the grounding terminal in real time, eliminating the risk of static electricity accumulation, meeting ESD protection standards, and adapting to precision electronic scenarios with extremely high anti-static requirements.

[0074] (3) Modular and consumable design principle: The brush head body and the micro-adhesive sheet are completely separated. The micro-adhesive sheet can be quickly replaced as an independent consumable, and the brush head body can be reused, which greatly reduces the long-term use cost. At the same time, according to different application scenarios, such as PCB circuit boards, optical lenses, precision instruments, electronic components, photovoltaic panels, etc., different adhesive, different sizes and different materials of micro-adhesive sheets can be flexibly replaced to achieve "one brush for multiple uses", which greatly improves the adaptability and versatility of the tool and meets the dust removal needs of multiple scenarios.

[0075] (4) Flexible and non-destructive protection principle: The tool adopts a composite structure of elastic soft base layer 130 + micro adhesive sheet 150 to achieve pressureless adhesive cleaning: the elastic soft base layer 130 can adapt to different curved surfaces and concave and convex structures (such as component pins, chip gaps, lens edges), avoiding physical damage to precision components caused by hard brushing and hard scraping (such as pin deformation, chip scratches, and lens coating damage), while avoiding crushing fragile components through flexible buffering, thus protecting the structural safety and performance integrity of precision equipment in all aspects.

[0076] (5) High-efficiency and residue-free cleaning principle: The micro-adhesive sheet 150 uses micro-structure adhesive. The bonding force between the adhesive molecules and the dust particles is much greater than the adhesion force between the dust and the equipment surface. It can efficiently adsorb micron-level and nano-level fine dust. At the same time, the adhesive layer leaves no residue and does not fall off. After cleaning, there is no secondary pollution on the equipment surface. No subsequent cleaning process is required, which improves the cleaning efficiency and cleaning effect and is suitable for scenarios with high cleanliness requirements (such as semiconductor manufacturing and optical instrument maintenance).

[0077] (6) Dust prevention and self-cleaning synergy principle: The tool brush head has a built-in dust prevention and protection structure, which can prevent dust from flying and spreading again during the cleaning process and prevent dust from entering the equipment and causing secondary pollution; at the same time, the micro-adhesive dust sheet can achieve self-cleaning by simple peeling and replacement, without the need for complicated cleaning of the brush head, keeping the tool clean for a long time, avoiding cross-contamination, and adapting to continuous dust cleaning operations of multiple devices and multiple scenarios.

[0078] Beneficial technical effects: 1. This application is a dust removal tool designed for the ash electrical balance characteristics of electronic equipment. It achieves selective dust removal through the controllable adhesion of the micro-adhesive sheet 150: it removes only loose surface dust, while completely preserving the stable, weakly conductive thin ash layer formed during long-term operation of the equipment, maintaining the original ash electrical steady state. This fundamentally solves the problems of ash layer damage, sudden changes in insulation performance, and imbalance of electric field distribution caused by the blind "thorough cleaning" of traditional dust removal methods. It completely avoids electrical faults such as short circuits, creepage, and high-voltage breakdown after dust removal, and significantly improves the safety and reliability of dust removal for precision electronic equipment and high-voltage electrical equipment.

[0079] 2. End-to-end electrostatic protection completely eliminates the risk of electrostatic breakdown. It adopts a dual protection system of micro-adhesive adsorption to replace friction cleaning and real-time electrostatic discharge: It significantly reduces frictional charging from the source. At the same time, through the complete circuit of built-in conductive base layer 120 + electrostatic discharge rod 110, it quickly discharges the residual static electricity generated during the cleaning process and the static electricity accumulated in the equipment to the ground terminal in real time. It strictly controls the electrostatic voltage during the cleaning process within a safe range, completely eliminates the risk of electrostatic breakdown of chips, semiconductor devices and sensitive electronic components, meets ESD protection standards, and is suitable for precision electronic and semiconductor manufacturing scenarios with extremely high anti-static requirements.

[0080] 3. Modular consumable design significantly reduces usage costs. The innovative design features a separate structure of "brush head body + detachable micro-adhesive pad 150". The micro-adhesive pad 150 is an independent consumable that can be quickly replaced, while the brush head body can be reused for a long time. Long-term usage costs are only 1 / 5 of existing integrated dust removal tools, offering extremely high cost-effectiveness. It also avoids the waste of replacing the entire tool when the traditional cleaning structure fails, achieving both economic efficiency and environmental friendliness, and is suitable for high-frequency, multi-device batch dust removal operations.

[0081] 4. Flexible and non-destructive + closed-loop cleaning, zero secondary pollution. The elastic soft base layer 130 in the three-layer composite flexible brush head can adapt to the complex curved surfaces and uneven structures of electronic devices (such as PCB pins, chip corners, connector pins), achieving pressureless and adhesive cleaning, completely avoiding physical damage such as component scratches, pin deformation, and lens coating damage caused by hard brushing and scraping; at the same time, the micro-adhesive adsorption cleaning produces no dust or powder flying, preventing secondary dust diffusion into the equipment and causing secondary pollution from the source, and the micro-adhesive sheet 150 leaves no adhesive residue and does not fall off, leaving the equipment surface clean and residue-free after cleaning, achieving closed-loop cleaning.

[0082] 5. High adaptability to all scenarios, one tool covers multiple fields. With interchangeable micro-adhesive pads of different adhesion, size, and material, it can flexibly adapt to diverse dust removal needs in various scenarios: for PCB circuit boards, servers, and industrial control equipment, medium- and low-adhesion pads are used for precise dust removal and protection of the dust layer; for high-voltage electrical equipment, low-adhesion pads are used to prioritize dust and electrical balance; for optical lenses and precision instruments, ultra-low-adhesion, residue-free pads achieve damage-free dust removal; for photovoltaic panels and large equipment, large-size, high-adhesion pads can be customized, truly achieving "one brush for multiple uses," covering dust removal needs in multiple fields such as electronics, electrical engineering, optics, and semiconductors.

[0083] 6. Extremely simple operation and convenient maintenance, suitable for all users. The tool adopts an ergonomic design, requiring no professional skills or complicated training, and ordinary users can quickly get started; the micro-adhesive pad 150 can be replaced in just 10 seconds, without complicated disassembly and maintenance, resulting in extremely low maintenance costs; at the same time, the tool has a robust and durable structure, which can be used stably for a long time, and is suitable for use in various scenarios such as enterprise operation and maintenance, laboratories, and personal DIY, significantly improving the efficiency of dust removal operations.

[0084] 7. High degree of structural innovation. The segmented three-layer composite structure, detachable micro-adhesive sheet 150, and integrated electrostatic discharge design of this application are completely different from existing integrated dust removal tools and traditional brush / compressed air dust removal tools. It has outstanding creativity and novelty in core technologies such as ash-electric balance protection, modular consumables, and full-chain electrostatic protection. It has high patent barriers, broad licensing prospects, and can form a complete intellectual property protection system.

[0085] 8. Dual improvement in cleaning efficiency and cleaning effect. The Micro Adhesive Patch 150 adopts a microstructure adhesive design. The binding force between the adhesive molecules and dust particles is much greater than the adhesion force between dust and equipment surface. It can efficiently adsorb micron- and nano-sized fine dust, cleaning thoroughly without dead corners. The cleaning efficiency is more than 30% higher than traditional tools. At the same time, it can precisely control the cleaning force to avoid over-cleaning and damaging the equipment, achieving the optimal balance between cleaning effect and equipment protection.

[0086] 9. Dustproof and self-cleaning, avoiding cross-contamination. The tool brush head has a built-in dustproof protective structure to prevent secondary dust re-entrainment during the cleaning process. At the same time, the micro-adhesive pad 150 can be easily peeled off and replaced to achieve tool self-cleaning, eliminating the need for complicated brush head cleaning. This keeps the tool clean for a long time and avoids cross-contamination in cleaning operations with multiple devices and in multiple scenarios. It is suitable for laboratories, semiconductor workshops and other scenarios with extremely high cleanliness requirements.

[0087] 10. Significant long-term operation and maintenance value, reducing equipment failure rate. Through ash balance protection and non-destructive dust removal, the failure rate of electronic equipment after dust removal is significantly reduced, extending equipment lifespan and reducing equipment maintenance costs and downtime losses. At the same time, the modular consumable design reduces operation and maintenance costs, bringing long-term economic value and improved operation and maintenance efficiency to users such as enterprises and laboratories.

[0088] In this application, the term "multiple" refers to two or more unless otherwise expressly defined. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0089] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0090] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A dust removal brush based on ash electrical balance protection, characterized in that, include: The brush handle has a hollow internal structure. An electrostatic discharge rod is disposed inside the brush handle, and one end of the electrostatic discharge rod is used to connect to an external grounding terminal; A three-layer composite flexible brush head is disposed at the dust removal end of the brush handle. The three-layer composite flexible brush head includes, in sequence, a conductive base layer, an elastic soft base layer, and a micro-adhesive layer. The conductive base layer is electrically connected to the other end of the electrostatic discharge rod. Micro-adhesive sheets are detachably attached to the surface of the micro-adhesive layer. The adhesive properties of the micro-adhesive sheets are configured to selectively adsorb loose dust and retain a thin layer of weakly conductive dust on the device surface.

2. The dust removal brush based on ash electrical balance protection according to claim 1, characterized in that, The brush handle includes: The grip portion has a rubber anti-slip layer on its surface.

3. The dust removal brush based on ash electrical balance protection according to claim 1, characterized in that, The micro-adhesive sheet can be detachably attached to the surface of the micro-adhesive layer by means of adhesive backing, snap-on fastening, or magnetic adsorption.

4. The dust removal brush based on ash electrical balance protection according to claim 1, characterized in that, Also includes: A grounding hole is provided at the tail end of the brush handle. The inner wall of the grounding hole is provided with a conductive element and is electrically connected to one end of the static discharge rod.

5. The dust removal brush based on ash electrical balance protection according to claim 1, characterized in that, Impedance range of electrostatic discharge rod: 10 6 ~10 8 Ω; peeling force range of micro adhesive patch: 0.01N / cm~0.05N / cm; hardness range of three-layer composite flexible brush head: Shore A 20~30.

6. The dust removal brush based on ash electrical balance protection according to claim 1, characterized in that, At least one non-adhesive lifting tab extends from the edge of the micro-adhesive patch, and the lifting tab is integrally formed with the micro-adhesive patch.

7. The dust removal brush based on ash electrical balance protection according to claim 1, characterized in that, Also includes: An installation groove is provided at the front end of the brush handle, the conductive base layer of the three-layer composite flexible brush head is embedded in the installation groove, and a through hole is opened at the bottom of the installation groove for the electrostatic discharge rod to pass through.

8. The dust removal brush based on ash electrical balance protection according to claim 1, characterized in that, The electrostatic discharge rod is a conductive carbon fiber rod or a copper core.

9. The dust removal brush based on ash electrical balance protection according to any one of claims 1 to 8, characterized in that, The surface of the micro-adhesive sheet has micron-level pits or protrusions.

10. A safe dust removal method based on ash electrical balance protection, employing a dust removal brush based on ash electrical balance protection as described in any one of claims 1 to 9, characterized in that, Includes the following steps: Before cleaning, connect the static discharge rod at the end of the brush handle to the external grounding terminal to form a static discharge circuit; Hold the brush handle and make the micro-adhesive sheet attached to the three-layer composite flexible brush head contact the surface of the equipment and move relative to it to selectively adsorb loose floating dust on the surface of the equipment, while retaining a thin layer of weakly conductive dust on the surface of the equipment. During the dust removal process, the conductive base layer receives static electricity generated by friction and discharges the static electricity to the external grounding terminal through the static discharge rod.

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