Fireproof insulation sheet with adaptive contour and high-efficiency surface mounting

Abstract

The invention discloses a profile-adaptive and efficiently-mounted fireproof insulation sheet, which comprises a main body layer, a plurality of insulation layers, a plurality of insulation layers, a plurality of insulation layers and a plurality of heat insulation layers, and is characterized in that the main body layer is an insulation fireproof Mylar; the positioning layer is arranged on one side of the main body layer, the positioning layer is foam with certain thickness and hardness, the outline of the positioning layer is matched with a clamping area of a surface-mounted position, and the positioning layer is used for being clamped with the surface-mounted position during surface mounting so as to realize accurate positioning; the fixing adhesive layer is arranged on the other side of the main body layer and is used for adhering and fixing the whole fireproof insulating sheet on a target device; and the operation lug layer is arranged on one side, far away from the main body layer, of the positioning layer and is used for clamping during mounting operation. According to the invention, by arranging the positioning layer and the operation pull lug layer which are matched with the clamping area, the profile matching accurate positioning and convenient clamping operation of the fireproof insulation sheet are realized, and the mounting precision and efficiency are obviously improved.

Description

Technical Field

[0001] This invention relates to the field of electronic component insulation protection technology, specifically to a contour-adaptive, high-efficiency mounting fireproof insulating sheet. Background Technology

[0002] As electronic devices develop towards higher performance and higher integration, the power consumption of chips (such as CPUs and GPUs) on the motherboards of devices such as laptops is constantly increasing. To ensure the stable operation and electrical safety of these high-power chips, it is usually necessary to attach insulating and fire-resistant materials to the surface or surrounding area of ​​the chips to prevent faults such as short circuits and arcing, while also providing a certain degree of buffer protection.

[0003] Traditional insulating patches mainly have the following technical problems during the installation process: First, the positioning accuracy is insufficient. The motherboard chip area is typically small and surrounded by precision components. Traditional Mylar wafers are mostly planar structures, relying on visual alignment by operators for placement, making rapid and accurate positioning difficult. Placement misalignment can not only affect coverage but also interfere with surrounding components, leading to short circuit risks. Especially in applications requiring specific mounting positions on the motherboard, traditional materials lack the shape to match the placement location, making physical snap-fit ​​positioning impossible.

[0004] Secondly, the ease of operation is poor. The patches themselves are small in size and usually have an adhesive layer, making them difficult for operators or automated equipment to handle during gripping, transferring, and placement. This can easily lead to adhesion, misalignment, or falling, affecting placement efficiency and yield. Existing technologies lack specially designed operational aids, resulting in difficult and inefficient placement operations.

[0005] Therefore, developing a composite patch structure that can achieve high-precision positioning and is easy to operate is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0006] To address the aforementioned technical problems, the present invention aims to provide a contour-adaptive, high-efficiency fire-resistant insulating sheet. By incorporating a rigid foam positioning layer and an operating lug layer that adapt to the mounting area, the present invention achieves precise contour-adaptive positioning and convenient clamping operation of the fire-resistant insulating sheet, significantly improving mounting accuracy and efficiency.

[0007] To achieve the above-mentioned technical objectives and effects, the present invention is implemented through the following technical solution: A contour-adaptive, high-efficiency mounting fireproof insulating sheet includes: A main body layer, wherein the main body layer is an insulating and fireproof Mylar sheet; A positioning layer is disposed on one side of the main body layer. The positioning layer is a foam with a certain thickness and hardness. Its outline is adapted to the locking area of ​​the mounting position and is used to engage with the mounting position during mounting to achieve precise positioning. A fixing adhesive layer is disposed on the other side of the main body layer for bonding and fixing the entire fireproof insulation sheet to the target device; An operating pull tab layer is provided on the side of the positioning layer away from the main body layer, and is used to clamp during the mounting operation.

[0008] Furthermore, the positioning layer is a PU foam layer with a thickness of 1.5-3.0 mm.

[0009] Furthermore, the positioning layer and the operating lug layer are bonded together by a first double-sided adhesive layer; the positioning layer and the main body layer are connected by a second double-sided adhesive layer.

[0010] Furthermore, the first double-sided adhesive layer and / or the second double-sided adhesive layer are substrate-free double-sided adhesive layers.

[0011] Furthermore, a temporary protective layer is provided between the positioning layer and the main body layer. The temporary protective layer is bonded to the positioning layer by the second double-sided adhesive layer, and its other side is peelably attached to the main body layer.

[0012] Furthermore, the temporary protective layer is a silicone protective film, and its 180-degree peel strength from the main layer is 6-12g / 25mm.

[0013] Furthermore, the surface resistance of the main body layer is ≥10^10 ohms / square meter, and its fire resistance rating meets the UL94 VTM-2 standard.

[0014] Furthermore, the main body layer has a dotted line perforation structure that facilitates bending and a bent portion formed by bending along the dotted line perforation structure.

[0015] Furthermore, the fixing adhesive layer is a PET substrate double-sided adhesive with a 180-degree peel force greater than 70N / 10mm; the fixing adhesive layer includes multiple independent adhesive blocks distributed on the main body layer.

[0016] Furthermore, the fireproof insulating sheet also includes release film tabs corresponding to the fixing adhesive layer. The release film tabs cover the fixing adhesive layer and are used to peel off sequentially during use to achieve step-by-step bonding and fixing.

[0017] The beneficial effects of this invention are as follows: (1) High-precision contour positioning is achieved. This invention uses foam with a certain thickness and hardness as a positioning layer and designs its outline to match the positioning area of ​​the mounting position. During mounting, it can achieve fast and accurate positioning through physical snap-fit. The positioning tolerance can reach ±0.1mm, which effectively avoids the offset problem caused by visual alignment in traditional patch mounting, ensures that the insulating sheet accurately covers the target area, and avoids interference with surrounding precision components.

[0018] (2) Significantly improves ease of operation. By setting an operation pull tab layer above the positioning layer, the present invention provides a dedicated gripping part for operators or automated equipment, which solves the problems of traditional small-sized patches being difficult to handle, easy to stick or fall off, reduces the difficulty of operation, and improves the placement efficiency and yield.

[0019] (3) Excellent insulation and fireproof performance is guaranteed. The main body layer of the present invention is made of insulating and fireproof Mylar sheet, which has high surface resistance and flame retardant rating that meets the UL94 VTM-2 standard, and can effectively meet the electrical safety requirements of the motherboard chip area.

[0020] (4) Reliable separation of the multi-layer structure is achieved, with no damage or residue to the main body layer. The present invention also sets a silicone protective film between the positioning layer and the main body layer as a temporary protective layer, which can provide effective physical support and protection for the main body layer during transportation and assembly, and can ensure that the positioning layer, along with the operating pull tab layer, can be easily removed during use, with no residue or damage to the surface of the main body layer, further improving the reliability of the product and the user experience. Attached Figure Description

[0021] Figure 1 This is an exploded structural diagram of a contour-adaptive, high-efficiency mounting fireproof insulating sheet according to the present invention.

[0022] In the figure, 10: operating pull tab layer; 20: first double-sided adhesive layer; 30: positioning layer; 40: second double-sided adhesive layer; 50: temporary protective layer; 60: main body layer; 601: dashed perforation structure; 602: bending part; 70: fixing adhesive layer; 80: release film pull tab. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] This invention provides a contour-adaptive, high-efficiency fire-resistant insulating sheet, comprising: an operating lug layer 10, a positioning layer 30, a main body layer 60, and a fixing adhesive layer 70. The layers are interconnected by adhesives or peelable methods, collectively achieving functions such as precise positioning, convenient operation, insulation and fire resistance, and reliable separation of multiple layers.

[0025] The main body layer 60 is the core functional layer of this invention and is made of insulating and fire-retardant Mylar sheet. Exemplarily, this insulating and fire-retardant Mylar sheet can be made of materials with excellent insulation and flame-retardant properties, such as Mylar material of model JKD 314-B45-V2. Preferably, the surface impedance of the main body layer 60 can reach 10^10 ohms / m² or higher, and its fire resistance rating meets the UL94VTM-2 standard, effectively meeting the stringent requirements for electrical safety and fire resistance in the motherboard chip area.

[0026] A positioning layer 30 is provided on one side (e.g., the upper surface) of the main body layer 60. This positioning layer 30 is made of foam material with a certain thickness and hardness. Its outline is not a simple geometric shape, but rather adapted to the specific shape of the mounting location (e.g., a specific slot area on the motherboard). Thus, during the mounting process, the positioning layer 30 can physically engage with the slot area on the motherboard, achieving fast and accurate pre-positioning. As a preferred embodiment, the positioning layer 30 is a PU foam layer, with an exemplary thickness of 1.5-3.0 mm. This thickness selection ensures that the positioning layer 30 has sufficient structural strength for reliable engagement guidance, while avoiding interference with surrounding components due to excessive thickness. More preferably, the hardness of the PU foam can be controlled to approximately 8 to 17 Shore O, giving it both appropriate rigidity and elasticity. This ensures that the outline remains unchanged during engagement to guarantee positioning accuracy (up to ±0.1 mm), and also absorbs minor tolerances and vibrations after assembly, providing a cushioning effect.

[0027] A fixing adhesive layer 70 is provided on the other side (e.g., the lower surface) of the main body layer 60 for bonding and fixing the entire fireproof insulating sheet to the target device (such as the surface of a motherboard chip). As a preferred example, the fixing adhesive layer 70 can be made of PET-based double-sided adhesive, such as 3M 55256P, which has a 180-degree peel strength greater than 70 N / 10 mm, providing a high-strength adhesive fixation effect and ensuring that the product will not shift or fall off during use. Preferably, the fixing adhesive layer 70 may include multiple independent adhesive blocks distributed on the main body layer 60. This segmented design can reduce the contact area between the adhesive layer and the motherboard chip, ensuring sufficient adhesive strength while reducing internal stress caused by large-area bonding, and improving the reliability of the product under temperature change environments.

[0028] Furthermore, the fire-resistant insulating sheet may also include at least one release film tab 80 corresponding to the fixing adhesive layer 70. The release film tab 80 covers the fixing adhesive layer 70 and protects the adhesive layer from contamination before use. For example, multiple corresponding release film tabs 80 can be provided for multiple independent adhesive blocks distributed on the main body layer 60. During operation, these tabs can be peeled off sequentially as needed, achieving step-by-step bonding and fixing, greatly improving the flexibility and convenience of operation. The release film tab 80 is preferably made of PET material.

[0029] An operating pull tab layer 10 is provided on the side of the positioning layer 30 away from the main body layer 60 (e.g., the upper surface). This operating pull tab layer 10 provides a dedicated gripping area for operators or automated equipment, solving the problems of traditional small-sized patches being difficult to handle, prone to sticking, or falling off. The size of the operating pull tab 10 is larger than the size of the positioning layer 30 and the main body layer 60. As an example, the operating pull tab layer 10 can be made of a composite PET material of model TR-1880-HP and ST7540B.

[0030] As a preferred connection method, the positioning layer 30 is bonded to the operating lug layer 10 via a first double-sided adhesive layer 20; the positioning layer 30 is connected to the main body layer 60 via a second double-sided adhesive layer 40. This layered bonding method facilitates the independent processing and composite assembly of each functional layer. More preferably, the first double-sided adhesive layer 20 and / or the second double-sided adhesive layer 40 can be made of substrate-free double-sided adhesive, such as 3M 467MP double-sided adhesive material. Substrate-free double-sided adhesive has an extremely thin thickness and excellent initial tack and holding power, which can form a strong bond between different layers without significantly increasing the overall thickness of the product, ensuring the lightweight design of the product.

[0031] As a further preferred embodiment, a temporary protective layer 50 is provided between the positioning layer 30 and the main body layer 60. This temporary protective layer 50 is bonded to the positioning layer 30 via the second double-sided adhesive layer 40, and its other side is peelably adhered to the main body layer 60. Specifically, the temporary protective layer 50 can be a silicone protective film, such as the KDP-5505B silicone protective film, with its PET substrate side facing the second double-sided adhesive layer 40 and its other side (the silicone pressure-sensitive adhesive side) adhered to the surface of the main body layer 60. This silicone protective film has the following beneficial effects: First, during product transportation, storage, and pre-assembly operations, it adheres tightly to the surface of the main body layer 60, effectively dispersing external stress and providing effective physical support and protection for the main body layer 60. This prevents the main body layer 60 from developing creases, scratches, or deformation due to bending, squeezing, or accidental contact, ensuring that the main body layer 60 maintains its flatness and functional integrity before final use. Second, this silicone protective film has excellent weather resistance, especially high-temperature resistance. After undergoing the high-temperature environments encountered during motherboard mounting processes, such as reflow soldering, the material properties do not deteriorate, and there is no shrinkage, embrittlement, or increased adhesion to the main body layer 60. The peel force between the silicone protective film and the main body layer 60 is controlled within a low adhesion range of 6-12g / 25mm. This characteristic ensures that in the final use step, the operator can easily peel off the positioning layer 30, the operating lug layer 10, and the temporary protective layer 50 as a whole from the main body layer 60. After removal, the surface of the main body layer 60 is clean, without any adhesive residue, requiring no additional cleaning process. By setting this temporary protective layer 50, the present invention achieves reliable separation of multi-layer structures, leaving the main body layer 60 undamaged and without adhesive residue, further improving product reliability and user experience.

[0032] As an optional improvement, the main body layer 60 may also be provided with a dotted line penetration structure 601 for easy bending. The dotted line penetration structure 601 is set along a predetermined bending path. When it is necessary to adapt to the three-dimensional structure on the motherboard or to bypass specific components, the operator can precisely bend along the dotted line penetration structure 601 to form a bend 602, thereby enabling the product to better adapt to non-planar mounting environments.

[0033] The present invention will be further described below through specific embodiments.

[0034] Example This embodiment provides a contour-adaptive, high-efficiency fireproof insulating sheet, the stacked structure of which, from top to bottom, consists of: an operating pull tab layer 10, a first double-sided adhesive layer 20, a positioning layer 30, a second double-sided adhesive layer 40, a temporary protective layer 50, a main body layer 60, and a fixing adhesive layer 70.

[0035] The operating pull layer 10 is made of a composite PET material of model TR-1880-HP and ST7540B, used for gripping operations.

[0036] The first double-sided adhesive layer 20 uses 3M 467MP substrate-free double-sided adhesive to bond the operating pull tab layer 10 to the positioning layer 30.

[0037] The positioning layer 30 uses PU foam with a thickness of 2.36mm (model number 4701-40-20093-04), and its shape is adapted to the motherboard slot area, which can achieve a positioning accuracy of ±0.1mm.

[0038] The second double-sided adhesive layer 40 uses 3M 467MP substrate-free double-sided adhesive to bond the positioning layer 30 to the temporary protective layer 50.

[0039] The temporary protective layer 50 uses a silicone protective film of model KDP-5505B. Its silicone pressure-sensitive adhesive side is peelably bonded to the main body layer 60, while the other side (PET substrate side) is bonded to the second double-sided adhesive layer 40. The peel force between this silicone protective film and the main body layer 60 is 6-12g / 25mm, and it leaves no residue after being peeled off after high temperature.

[0040] The main body layer 60 is made of JKD 314-B45-V2 insulating and fireproof Mylar sheet with a surface impedance ≥10^10Ω / □ and UL94VTM-2 rating. It is provided with a dotted line penetration structure 601 and a bending part 602 formed by bending along the dotted line penetration structure.

[0041] The fixing adhesive layer 70 uses 3M 55256P PET substrate double-sided adhesive (peel force >70N / 10mm), which is divided into three independent adhesive blocks, each covered with a release film pull tab 80.

[0042] In use, the operator picks up the entire component by gripping the operating tab layer 10; then peels off the release film tab 80 on the fixing adhesive layer 70 at the bottom of the main body layer 60; flips the component over, using the rigid foam shape of the positioning layer 30 to snap into the corresponding slot area on the motherboard, achieving precise positioning (tolerance up to ±0.1mm); presses the component, causing the main body layer 60 to adhere firmly to the motherboard chip position through the exposed fixing adhesive layer 70; finally, the operating tab layer 10, positioning layer 30, and temporary protective layer 50 are easily peeled off from the main body layer 60 as a whole, leaving the surface of the main body layer 60 clean and free of adhesive residue. For three-dimensional structures, the component can be bent by punching through the structure 601 along the dotted line on the main body layer 60.

[0043] Through the synergistic cooperation of the above-mentioned functional layers, the present invention achieves the following beneficial effects: (1) High-precision contour positioning: By setting a rigid foam positioning layer 30 that is compatible with the carding area, fast and accurate positioning can be achieved through physical snap-fit ​​during mounting. The positioning tolerance can reach ±0.1mm, which effectively avoids the offset problem caused by visual alignment in traditional patch mounting.

[0044] (2) Significantly improves ease of operation: By setting up the operation pull layer 10, a special gripping part is provided for operators or automated equipment, which solves the problem that traditional small-sized patches are not easy to handle, stick or fall off, and improves the placement efficiency and yield.

[0045] (3) Excellent insulation and fireproof performance: The main body layer 60 is made of insulating and fireproof Mylar sheet, which has high surface resistance and flame retardant rating that meets the UL94 VTM-2 standard, thus meeting the electrical safety requirements of the motherboard chip area.

[0046] (4) Reliable separation of multi-layer structure: By setting a silicone protective film as a temporary protective layer 50, it provides physical support and protection for the main body layer 60 before assembly, and the auxiliary layers (operating pull ear layer 10, positioning layer 30, etc.) can be easily removed after use. There is no residual glue or damage on the surface of the main body layer 60, which significantly improves the reliability of the product and the user experience.

[0047] (5) Flexible and adaptable design: The product can be adapted to three-dimensional space by bending structure with dotted lines. The fixed adhesive layer 70 and release film pull ear 80 with segmented design can be used to achieve step-by-step pasting and fixing, which further enhances the product's operational flexibility and environmental adaptability.

[0048] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

[0049] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A contour-adaptive, high-efficiency mounting fireproof insulating sheet, characterized in that, include: A main body layer, wherein the main body layer is an insulating and fireproof Mylar sheet; A positioning layer is disposed on one side of the main body layer. The positioning layer is a foam with a certain thickness and hardness. Its outline is adapted to the locking area of ​​the mounting position and is used to engage with the mounting position during mounting to achieve precise positioning. A fixing adhesive layer is disposed on the other side of the main body layer for bonding and fixing the entire fireproof insulation sheet to the target device; An operating pull tab layer is provided on the side of the positioning layer away from the main body layer, and is used to clamp during the mounting operation.

2. The contour-adaptive, high-efficiency mounting fireproof insulating sheet according to claim 1, characterized in that, The positioning layer is a PU foam layer with a thickness of 1.5-3.0mm.

3. The contour-adaptive, high-efficiency mounting fireproof insulating sheet according to claim 1, characterized in that, The positioning layer and the operating lug layer are bonded together by a first double-sided adhesive layer; the positioning layer and the main body layer are connected by a second double-sided adhesive layer.

4. The contour-adaptive high-efficiency mounting fireproof insulating sheet according to claim 3, characterized in that, The first double-sided adhesive layer and / or the second double-sided adhesive layer are substrate-free double-sided adhesive layers.

5. The contour-adaptive, high-efficiency mounting fireproof insulating sheet according to claim 3, characterized in that, A temporary protective layer is provided between the positioning layer and the main body layer. The temporary protective layer is bonded to the positioning layer by the second double-sided adhesive layer, and its other side is peelably attached to the main body layer.

6. The contour-adaptive high-efficiency mounting fireproof insulating sheet according to claim 5, characterized in that, The temporary protective layer is a silicone protective film, and its 180-degree peel strength from the main layer is 6-12g / 25mm.

7. The contour-adaptive high-efficiency mounting fireproof insulating sheet according to claim 1, characterized in that, The surface resistance of the main layer is ≥10^10 ohms / square meter, and its fire resistance rating meets the UL94 VTM-2 standard.

8. The contour-adaptive, high-efficiency mounting fireproof insulating sheet according to claim 1, characterized in that, The main body layer has a dotted perforation structure that facilitates bending and a bent portion formed by bending along the dotted perforation structure.

9. The contour-adaptive, high-efficiency mounting fireproof insulating sheet according to claim 1, characterized in that, The fixing adhesive layer is a PET substrate double-sided adhesive with a 180-degree peel strength greater than 70N / 10mm; the fixing adhesive layer includes multiple independent adhesive blocks distributed on the main body layer.

10. The contour-adaptive high-efficiency mounting fireproof insulating sheet according to claim 9, characterized in that, It also includes release film tabs corresponding to the adhesive layer, which cover the adhesive layer and are used to peel off sequentially during use to achieve step-by-step bonding and fixing.

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