Electricity-conducting and heat-conducting foam tape
By introducing a storage cavity and thermally conductive filler into the conductive tape, the problems of heat resistance and thermal conductivity of the conductive tape are solved, achieving effective heat dissipation and improved conductivity, thus extending its service life.
Patent Information
- Application Number
- CN202423199394.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2034-12-24
AI Technical Summary
Existing conductive tapes do not have good heat resistance and thermal conductivity in electronic devices, causing heat to accumulate in confined spaces, which affects the lifespan and performance of conductive materials.
A conductive and thermally conductive foam tape was designed, comprising an adhesive layer, a storage cavity, a conductive filler, and a thermally conductive filler. It dissipates heat from the device through filter holes and conducts heat upwards through the thermally conductive filler. The conductive cloth layer and the conductive acrylic copolymer layer are combined to improve conductivity and mechanical strength.
It effectively prevents excessive temperature at the bonding points of the equipment, improves the conductivity and durability of the tape, ensures heat dissipation in confined spaces, and extends the service life of conductive materials.
Smart Images
Figure CN223780174U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of foam tape technology, and in particular to a conductive and thermally conductive foam tape. Background Technology
[0002] Conductive foam refers to conductive cloth wrapped around flame-retardant sponge. After a series of treatments, it has good surface conductivity and can be easily fixed to the device that needs to be shielded with adhesive tape. Shielding materials with different cross-sectional shapes, installation methods, UL ratings, and shielding effectiveness are available. In electronic products such as televisions, LCD monitors, LCD TVs, mobile phones, laptops, MP3 players, communication cabinets, and medical instruments, a layer of conductive foam is generally attached to some electronic components inside to achieve conductivity, anti-static properties, and cushioning and shock absorption. This type of conductive foam needs to have good flexibility, low impedance, and good thermal conductivity. Traditional conductive foam tape covers the entire surface of the foam with a conductive and thermally conductive layer.
[0003] Currently, conductive tape is commonly used in electronic display devices to adhere to the outer edges of each layer of electrode panels inside the device. Its main function is to conduct the static electricity generated by each substrate layer to ground through its edges, thereby achieving electrostatic shielding. However, existing conductive tapes often do not have good heat resistance and thermal conductivity. In a confined space, heat continues to accumulate, affecting the lifespan and conductivity of the conductive material inside the conductive tape. Utility Model Content
[0004] In order to overcome the defects of the prior art mentioned above, the inventors conducted in-depth research and, after a great deal of creative work, completed this utility model.
[0005] Specifically, the technical problem to be solved by this utility model is to provide a conductive and thermally conductive foam tape to solve the technical problem that current conductive tapes often do not have good heat resistance and thermal conductivity.
[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:
[0007] A conductive and thermally conductive foam tape includes a foam tape body. An adhesive layer is provided on the bottom inner side of the foam tape body. Two storage cavities are formed inside the adhesive layer. One storage cavity contains conductive filler, and the other storage cavity contains thermally conductive filler. Multiple filter holes are formed near the bottom of the adhesive layer. Heat generated during equipment operation is allowed to pass through the storage cavities and then be conducted upwards through the thermally conductive filler inside the storage cavities, preventing overheating at the bonding points.
[0008] As an improved technical solution, an anti-sticking layer is provided at the bottom of the adhesive layer.
[0009] As an improved technical solution, an adhesive layer is fixedly connected to the upper end of the adhesive layer, a conductive foam layer is fixedly connected to the other side of the adhesive layer, another layer of the adhesive layer is fixedly connected to the other end of the conductive foam layer, and a conductive cloth layer is fixedly connected to the other side of the adhesive layer.
[0010] As an improved technical solution, another adhesive layer is fixedly connected to the other end of the conductive fabric layer, and a conductive acrylic copolymer layer is fixedly connected to the other side of the adhesive layer.
[0011] As an improved technical solution, a release film is provided on the outer side of the conductive acrylic copolymer layer.
[0012] As an improved technical solution, a rotating column is fixedly connected inside the foam tape body, and a limiting ring is provided at both ends of the foam tape body. The two ends of the rotating column pass through the limiting ring and are rotatably connected to the limiting ring. A cutting blade is fixedly connected inside the limiting ring near the edge.
[0013] After adopting the above technical solution, the beneficial effects of this utility model are:
[0014] 1. This utility model comprises a foam tape body including a release film, a conductive acrylic copolymer layer, a conductive cloth layer, a conductive foam layer, and multiple adhesive layers. The release film, the self-made conductive acrylic copolymer layer, the conductive cloth layer, and the conductive foam layer are all bonded to each other by adhesive layers. An adhesive layer is provided on the surface of the foam tape body and on the surface of the conductive foam layer. A filter hole is provided at the bottom of the adhesive layer. The heat generated by the equipment during operation is allowed to pass through the storage chamber through the filter hole, and then be conducted upward through the heat-conducting filler inside the storage chamber, so as to avoid the equipment from overheating at the bonding point.
[0015] 2. This utility model uses a limiting ring to store the foam tape body, and at the same time, a cutting blade is used to cut the foam tape body during use to avoid stretching and deformation of the internal structure of the foam tape body, which would affect the conductivity and heat conduction effect. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0017] Figure 1 This is a schematic diagram of the overall structure of the conductive and thermally conductive foam tape of this utility model.
[0018] Figure 2 This is a schematic diagram showing the disassembled structure of the conductive and thermally conductive foam tape of this utility model.
[0019] Figure 3 This is a schematic diagram showing the disassembled structure of the adhesive layer of the conductive and thermally conductive foam tape of this utility model.
[0020] Explanation of reference numerals in the attached figures:
[0021] 1. Foam tape body; 11. Limiting ring; 12. Rotating column; 13. Cutting blade; 2. Release film; 3. Adhesive layer; 4. Conductive acrylic copolymer layer; 5. Conductive cloth layer; 6. Conductive foam layer; 7. Adhesive layer; 71. Storage cavity; 72. Conductive filler; 73. Thermally conductive filler; 74. Filter pores; 8. Anti-stick layer. Detailed Implementation
[0022] 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.
[0023] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0024] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.
[0025] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.
[0026] like Figure 2 and Figure 3As shown in the figure, this embodiment provides a conductive and thermally conductive foam tape. The conductive and thermally conductive foam tape includes a foam tape body 1. An adhesive layer 7 is provided on the bottom side of the foam tape body 1. Two storage cavities 71 are opened inside the adhesive layer 7. The storage cavity 71 is provided with conductive filler 72. The other storage cavity 71 is provided with thermally conductive filler 73. Multiple filter holes 74 are opened near the bottom of the adhesive layer 7. The heat generated by the device during operation is allowed to pass through the storage cavity 71 through the filter holes 74, and then be conducted upward through the thermally conductive filler 73 inside the storage cavity 71, so as to avoid the device from overheating at the bonding point.
[0027] The bottom of the adhesive layer 7 is provided with an anti-adhesive layer 8, which provides physical protection for the adhesive layer and prevents it from being affected by external factors such as dust, moisture, and oil. This ensures that the adhesive layer's adhesion and performance are not damaged, allowing it to perform well in terms of electrical conductivity, thermal conductivity, and bonding after being pasted.
[0028] An adhesive layer 3 is fixedly connected to the upper end of the adhesive layer 7. A conductive foam layer 6 is fixedly connected to the other side of the adhesive layer 3. Another adhesive layer 3 is fixedly connected to the other end of the conductive foam layer 6. A conductive cloth layer 5 is fixedly connected to the other side of the adhesive layer 3. The conductive foam layer 6 can provide a certain mechanical strength to the foam tape body. Due to the presence of the conductive filler 72, when the foam tape body is subjected to external force, the conductive foam layer 6 can share some of the pressure, improving the tensile and tear resistance of the tape. This makes the tape more durable during use and better able to adapt to different usage environments and conditions.
[0029] Another adhesive layer 3 is fixedly connected to the other end of the conductive fabric layer 5. A conductive acrylic copolymer layer 4 is fixedly connected to the other side of the adhesive layer 3. The conductive acrylic copolymer layer 4 enhances the conductivity and thermal conductivity of the foam tape body.
[0030] A release film 2 is provided on the outer side of the conductive acrylic copolymer layer 4. When the conductive and thermally conductive foam adhesive is not used, the release film 2 covers the surface of the adhesive layer 7, which can effectively prevent the adhesive layer 7 from sticking to other objects.
[0031] like Figure 1 As shown, a rotating column 12 is fixedly connected inside the foam tape body 1. A limiting ring 11 is provided at both ends of the foam tape body 1. The rotating column 12 passes through the limiting ring 11 and is rotatably connected to the limiting ring 11 at both ends. A cutting blade 13 is fixedly connected inside the limiting ring 11 near the edge. The foam tape body 1 is stored through the limiting ring 11. At the same time, the foam tape body is cut by the cutting blade 13 during use to avoid deformation of the internal structure of the foam tape body caused by pulling, which would affect the conductivity and heat conduction effect.
[0032] In use, the foam tape body 1 comprises a release film 2, a conductive acrylic copolymer layer 4, a conductive cloth layer 5, a conductive foam layer 6, and multiple adhesive layers. The release film 2, the self-made conductive acrylic copolymer layer 4, the conductive cloth layer 5, and the conductive foam layer 6 are all bonded together by adhesive layers. An adhesive layer 7 is provided on the surface of the foam tape body 1 and on the surface of the conductive foam layer 6. The bottom of the adhesive layer 7 has filter holes 74. The heat generated during the operation of the equipment is allowed to pass through the storage cavity 71 through the filter holes 74, and then be conducted upward through the heat-conducting filler 73 inside the storage cavity 71. At the same time, the conductive foam layer 6 can provide a certain mechanical strength to the foam tape body. Due to the presence of the conductive filler 72, when the foam tape body is subjected to external force, the conductive foam layer 6 can share some of the pressure, improving the tensile and tear resistance of the tape. Finally, the foam tape body is cut by the cutting blade 13 to avoid deformation of the internal structure of the foam tape body due to pulling.
[0033] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical description of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.
Claims
1. A conductive and thermally conductive foam tape, comprising a foam tape body (1), characterized in that: The foam tape body (1) has an adhesive layer (7) on its bottom side. The adhesive layer (7) has two storage cavities (71) inside. The storage cavity (71) has a conductive filler (72) inside, and the other storage cavity (71) has a thermally conductive filler (73) inside. The adhesive layer (7) has multiple filter holes (74) near the bottom. The heat generated by the equipment during operation is passed through the storage cavity (71) through the filter holes (74) and then conducted upward through the thermally conductive filler (73) inside the storage cavity (71), so as to avoid the equipment from overheating at the adhesive area.
2. The conductive and thermally conductive foam tape according to claim 1, characterized in that: The adhesive layer (7) has an anti-adhesive layer (8) at its bottom.
3. The conductive and thermally conductive foam tape according to claim 2, characterized in that: The adhesive layer (7) is fixedly connected to the upper end of the adhesive layer (7) with an adhesive layer (3), and a conductive foam layer (6) is fixedly connected to the other side of the adhesive layer (3). Another layer of the adhesive layer (3) is fixedly connected to the other end of the conductive foam layer (6), and a conductive cloth layer (5) is fixedly connected to the other side of the adhesive layer (3).
4. The conductive and thermally conductive foam tape according to claim 3, characterized in that: The other end of the conductive fabric layer (5) is fixedly connected to another adhesive layer (3), and the other side of the adhesive layer (3) is fixedly connected to a conductive acrylic copolymer layer (4).
5. The conductive and thermally conductive foam tape according to claim 4, characterized in that: The conductive acrylic copolymer layer (4) has a release film (2) on its outer side.
6. The conductive and thermally conductive foam tape according to claim 1, characterized in that: The foam tape body (1) is fixedly connected to a rotating column (12). The foam tape body (1) is provided with limiting rings (11) at both ends. The rotating column (12) passes through the limiting rings (11) and is rotatably connected to the limiting rings (11) at both ends. A cutting blade (13) is fixedly connected to the limiting rings (11) near the edge.