Heat-conducting insulating adhesive tape with waterproof layer
By setting protrusions on the surface of the tape body and wrapping it with a waterproof layer, combined with the design of tear section and guide section, the problem of increased thermal resistance and inconvenience of tearing of thermally conductive insulating tape in humid environments is solved, achieving efficient heat dissipation and convenient tearing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-03-06
AI Technical Summary
Existing thermally conductive insulating tapes suffer from insufficient thermal conductivity and are difficult to tear in humid environments, especially due to the increased thermal resistance and uncontrollable tearing caused by the introduction of a waterproof layer.
The tape body surface is raised and wrapped with a waterproof layer to form a textured structure to increase the contact area. Tear sections and guide sections, such as positioning notch grooves and grid guide grooves, are opened on the side of the tape to ensure fixed-point tearing and neatness.
It improves the heat conduction efficiency of the tape, reduces thermal resistance, ensures the controllability and neatness of the tearing process, and enhances ease of use.
Smart Images

Figure CN223974034U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of thermally conductive insulating tape, specifically relating to a thermally conductive insulating tape with a waterproof layer. Background Technology
[0002] Thermally conductive insulating tape is an adhesive material with excellent thermal conductivity and superior insulation properties. It is typically composed of an acrylic polymer mixed with thermally conductive ceramic powder, coated on both sides of fiberglass cloth, and bonded with silicone adhesive. It efficiently conducts heat and prevents current flow, and is widely used in the heat dissipation systems of electronic and electrical products to adhere heat-generating components and heat dissipation devices, achieving cooling and heat dissipation purposes.
[0003] In existing technologies, to address the performance degradation of thermally conductive insulating tape in humid environments, conventional approaches typically employ a composite design combining a waterproof functional layer and the thermally conductive insulating tape. However, this approach suffers from the following key drawbacks in practical applications:
[0004] Heat transfer efficiency loss
[0005] Fully bonded waterproof layers (such as polyethylene film or polyurethane coating) form a continuous thermal resistance barrier inside the tape. In addition, micron-sized air gaps (about 2-5μm) are easily generated at the interface between the waterproof layer and the thermally conductive layer, which further aggravates the interface thermal resistance problem.
[0006] The introduction of a waterproof layer presents multiple challenges to opening and removing the tape:
[0007] Uncontrollable tearing point: Traditional flat-end design requires an initial tearing force of ≥3N, and the breakage path is prone to deviating from the preset direction. Utility Model Content
[0008] The purpose of this utility model is to provide a thermally conductive insulating tape with a waterproof layer, so as to solve the problems mentioned in the background art that the existing thermally conductive insulating tape is prone to insufficient thermal conductivity due to the waterproof layer, and is inconvenient to tear.
[0009] To achieve the above objectives, this utility model provides the following technical solution: a thermally conductive insulating tape with a waterproof layer, comprising a tape body; protrusions are evenly distributed on the outer surface of the tape body; and a waterproof layer is also included; the waterproof layer is bonded to the outer surface of the tape body, and the waterproof layer is wrapped around the protrusions by hot pressing, forming an uneven structure on the surface of the tape body through the protrusions, which can increase the connection area between the tape body and the waterproof layer, thereby improving heat dissipation efficiency; tearing portions are provided on the sides of the tape body and the waterproof layer, which can quickly tear the tape body and the waterproof layer; a guiding portion is provided on the inner side of the tape body, which expands its width after the tape body is stretched, thereby achieving point-to-point tearing of the tape body.
[0010] Preferably, the tear portion includes a positioning notch groove formed on the side of the tape body and the waterproof layer. The positioning notch groove has a semi-circular structure, which facilitates the determination of the tear distance of each section of thermally conductive insulating tape.
[0011] Preferably, the outer surface of the waterproof layer is engraved with multiple guide marks, and each guide mark is connected to two positioning notches on the same straight line at both ends. The guide marks can be used to visually detect the neatness of the thermally conductive insulating tape after tearing, and the thermally conductive insulating tape can also be cut according to the guide marks.
[0012] Preferably, the guide portion includes a grid guide groove formed on the inner side of the tape body. The grid guide groove has an overall prismatic structure, which can cause the two parallel ends of the grid guide groove of the tape body to break when the tape body is pulled horizontally or vertically.
[0013] Preferably, each of the grid guide grooves is located between two adjacent guide marks, and the depth of the grid guide groove is less than the thickness of the tape body.
[0014] Preferably, a side groove is provided at the outer surface edge of the tape body, and the edge of the waterproof layer is bonded to the side groove by hot pressing. The staggered hot pressing installation can improve the connection strength and prevent the two from separating.
[0015] Preferably, the thickness of the waterproof layer is less than the thickness of the tape body, and the lengths of the tape body and the waterproof layer are equal.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] In this invention, the protrusions increase the effective contact area between the waterproof layer and the tape body, allowing heat to be directly transferred through the protrusions, reducing the thermal resistance caused by the poor thermal conductivity of the waterproof layer material. A reasonable concave-convex design may optimize the heat conduction path and prevent excessive heat accumulation at the interface. At the same time, flat surfaces are prone to air gaps due to loose adhesion, while the protruding structure may reduce air retention through local tight adhesion, thereby reducing the overall thermal resistance. Furthermore, this invention adds positioning notch grooves and grid guide grooves, which can easily tear the thermally conductive insulating tape according to a preset path and ensure that the torn ends are flat. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the bottom structure of the tape body of this utility model;
[0020] Figure 3 This utility model Figure 1 An enlarged schematic diagram of region A in the middle.
[0021] In the picture:
[0022] 100. Tape body; 101. Protrusion; 102. Mesh guide groove; 103. Side groove;
[0023] 200. Waterproof layer; 201. Guiding signage;
[0024] 300. Positioning notch. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see Figures 1 to 3 This utility model provides a technical solution: a thermally conductive insulating tape with a waterproof layer, comprising...
[0027] Tape body 100;
[0028] The outer surface of the tape body 100 is evenly distributed with protrusions 101;
[0029] It also includes a waterproof layer 200; the waterproof layer 200 is bonded to the outer surface of the tape body 100, and the waterproof layer 200 is wrapped around the outside of the protrusion 101 by hot pressing. The protrusion 101 forms an uneven structure on the surface of the tape body 100, which can increase the connection area between the tape body 100 and the waterproof layer 200, thereby improving the heat dissipation efficiency.
[0030] Tear sections are provided on the sides of the tape body 100 and the waterproof layer 200. The tape body 100 and the waterproof layer 200 are quickly torn through the tear sections. A guide section is provided on the inner side of the tape body 100. The guide section expands its width after the tape body 100 is stretched, thereby realizing the point tearing of the tape body 100.
[0031] In this embodiment, preferably, the tear portion includes a positioning notch 300 formed on the side of the tape body 100 and the waterproof layer 200. The positioning notch 300 has a semi-circular structure, and the tear distance of each section of thermally conductive insulating tape can be easily determined through the positioning notch 300.
[0032] In this embodiment, preferably, multiple guide marks 201 are engraved on the outer surface of the waterproof layer 200. Each guide mark 201 has two positioning notches 300 on the same straight line at both ends. The guide marks 201 can be used to visually detect the neatness of the thermally conductive insulating tape after tearing, and the thermally conductive insulating tape can also be cut according to the guide marks 201.
[0033] In this embodiment, preferably, the guide portion includes a grid guide groove 102 formed on the inner side of the tape body 100. The grid guide groove 102 has an overall prismatic structure, which can cause the two parallel ends of the grid guide groove 102 of the tape body 100 to break when the tape body 100 is pulled horizontally or vertically.
[0034] In this embodiment, preferably, each grid guide groove 102 is located between two adjacent guide marks 201, and the depth of the grid guide groove 102 is less than the thickness of the tape body 100.
[0035] In this embodiment, preferably, a side groove 103 is also provided at the outer surface edge of the tape body 100. The edge of the waterproof layer 200 is bonded to the side groove 103 by hot pressing. The staggered hot pressing installation can improve the connection strength and prevent the two from separating.
[0036] In this embodiment, preferably, the thickness of the waterproof layer 200 is less than the thickness of the tape body 100, and the lengths of the tape body 100 and the waterproof layer 200 are equal.
[0037] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A waterproof heat-conducting insulation tape, comprising a tape body (100); characterized in that the outer surface of the tape body (100) is uniformly distributed with protrusions (101); further comprising a waterproof layer (200) adhered to the outer surface of the tape body (100), and the waterproof layer (200) is wrapped outside the protrusions (101) by hot pressing; a tear part is provided on the side edge of the tape body (100) and the waterproof layer (200), so as to quickly tear the tape body (100) and the waterproof layer (200), and a guide part is provided on the inner side of the tape body (100), which expands its width after the tape body (100) is stretched.
2. The heat-conducting insulating tape with waterproof layer according to claim 1, characterized in that: The tear part comprises positioning notches (300) provided on the side edge of the tape body (100) and the waterproof layer (200), which are semicircular in shape.
3. The heat-conducting insulating tape with waterproof layer according to claim 2, characterized in that: The outer surface of the waterproof layer (200) is engraved with a plurality of guide marks (201), and the two ends of each guide mark (201) are connected with two positioning notches (300) on the same straight line.
4. The heat-conducting insulating tape with waterproof layer according to claim 3, characterized in that: The guide part comprises grid guide grooves (102) provided on the inner side of the tape body (100), which are prismatic in shape.
5. The heat-conducting insulating tape with a waterproof layer according to claim 4, characterized in that: Each grid guide groove (102) is between two adjacent guide marks (201), and the depth of the grid guide groove (102) is less than the thickness of the tape body (100).
6. The heat-conducting insulating tape with waterproof layer according to claim 3, characterized in that: The outer surface edge of the tape body (100) is further provided with an edge groove (103), and the edge of the waterproof layer (200) is adhered in the edge groove (103) by hot pressing.
7. The heat-conducting insulating tape with a waterproof layer according to claim 6, characterized in that: The thickness of the waterproof layer (200) is less than the thickness of the tape body (100), and the length of the tape body (100) is equal to that of the waterproof layer (200).