Novel rapid heat dissipation and heat conduction double-sided tape and preparation device and method

Abstract

The invention discloses a novel rapid heat dissipation and heat conduction double-sided adhesive tape and a preparation device and method, and particularly relates to the technical field of heat conduction double-sided adhesive tape, the novel rapid heat dissipation and heat conduction double-sided adhesive tape comprises a base tape, heat conduction adhesives are fixedly arranged at the top end and the bottom end of the base tape, and the base tape is made of acrylic polymer; the two layers of heat-conducting adhesives are symmetrically arranged up and down, the surface of the heat-conducting adhesive at the top is covered with a layer of release paper tape, the width of the release paper tape is greater than the widths of the base tape and the heat-conducting adhesives, and the widths of the base tape and the heat-conducting adhesives are the same. The release paper tape covers the surface of the heat-conducting adhesive at the top, the two protective paper strips are fixed at the bottom end of the release paper tape, and the base tape and the heat-conducting adhesive are protected between the two protective paper strips, so that unnecessary adhesion of the side surface of the heat-conducting double-sided adhesive tape is avoided, and the heat-conducting double-sided adhesive tape is more convenient to use.

Description

Technical Field

[0001] The invention relates to the technical field of thermally conductive double-sided adhesive tapes, and in particular to a novel fast heat-dissipating thermally conductive double-sided adhesive tape, and a preparation device and method thereof. Background Art

[0002] Thermally conductive double-sided tape is a product widely used in electronic devices. It can fill uneven surfaces and conduct heat away. It can also adhere the radiator to the heat-generating components of electronic devices, fixing the radiator without affecting the conduction of heat.

[0003] Conventional thermally conductive double-sided tapes are mainly composed of a substrate, an adhesive with a thermally conductive function, and a release paper. For example, a novel fast heat dissipating thermally conductive double-sided tape with a publication number of CN117820973A is disclosed in the prior art.

[0004] The release paper of the thermally conductive double-sided tape mainly covers the surface adhesive to avoid unnecessary adhesion before use. However, since the thermally conductive double-sided tape is composed of a multi-layer structure, it itself has a certain thickness, which makes the side of the thermally conductive double-sided tape also have a certain stickiness. However, the existing release paper cannot cover the side, which makes the side of the thermally conductive double-sided tape very prone to unnecessary adhesion, which is inconvenient. Summary of the invention

[0005] The purpose of the present invention is to provide a new type of fast heat-dissipating thermally conductive double-sided tape, a preparation device and a method, by fixing two protective paper strips at the bottom end of the release paper tape, protecting the base tape and the thermally conductive adhesive between the two protective paper strips, avoiding unnecessary adhesion on the side of the thermally conductive double-sided tape, making the use of the thermally conductive double-sided tape more convenient.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: a novel fast heat dissipation thermally conductive double-sided tape, comprising a base tape, the top and bottom of which are fixed with thermally conductive adhesives, the base tape is made of acrylic polymer, two layers of thermally conductive adhesives are symmetrically arranged up and down, and the surface of the thermally conductive adhesive on the top is covered with a layer of release paper tape;

[0007] The width of the release paper tape is greater than the width of the base tape and the thermally conductive adhesive. The widths of the base tape and the thermally conductive adhesive are the same and are located in the middle of the release paper tape. Two protective paper strips are fixedly provided at the bottom of the release paper tape. The base tape and the thermally conductive adhesive are located between the two protective paper strips. A release paper strip is fixedly provided on one side of the protective paper strip facing the base tape.

[0008] The present invention also includes a preparation device for the new type of fast heat-dissipating thermally conductive double-sided tape, including a base, a removable fixing plate is provided on the top of the base, the base and the fixing plate are connected by bolts, an extension shaft is rotatably connected to one side of the fixing plate, and a driving motor for driving the extension shaft to rotate is fixedly provided on the other side of the fixing plate.

[0009] Furthermore, a winding assembly is provided on the top of the base, and the winding assembly includes a hollow shaft connected to one end of the extension shaft through a flange, and an air guide tube with a valve is fixedly provided on the outer end of the hollow shaft to inflate or discharge the air in the hollow shaft;

[0010] An elastic airbag is fixedly provided at the outer end of the hollow shaft, and a plurality of air holes are opened at the outer end of the hollow shaft. The air holes are located inside the elastic airbag, and two baffles that play a limiting role are provided at the outer end of the elastic airbag. The thermally conductive double-sided tape is clamped between the two baffles during winding, and two fixing rings are sleeved on the outer end of the elastic airbag. The two baffles are respectively fixed at the outer ends of the two fixing rings.

[0011] Furthermore, a coloring component is provided on the top of the winding component, and the coloring component includes a crossbeam, and a controller and a laser length meter for measuring the winding length of the thermal conductive double-sided tape are fixedly provided at the bottom end of the crossbeam, the laser length meter is arranged at the input end of the controller, and the drive motor is arranged at the output end of the controller.

[0012] Furthermore, a linear motor is fixedly provided on the front side of the crossbeam, and four transversely arranged paint pens are provided on the mover of the linear motor. The colors of the paint pens are different, and the paint pens use quick-drying and waterproof paints. The linear motor is arranged at the output end of the controller.

[0013] Furthermore, a column is fixedly provided on the top of the base, a slide seat that can slide up and down is sleeved on the outer end of the column, the crossbeam is fixedly provided on the side of the slide seat facing the winding assembly, an electric push rod is fixedly provided on the bottom end of the crossbeam, and the bottom end of the electric push rod is fixedly connected to the top of the base.

[0014] The present invention also includes a method for preparing the novel fast heat dissipation thermally conductive double-sided adhesive tape, the specific steps of which are as follows:

[0015] Step 1: Select a film made of acrylic polymer and cut it into long strips with a width of 2 cm to make a base tape. The width of the strip can be adjusted according to the needs of use, generally 1-5 cm;

[0016] Step 2: Cover the upper and lower sides of the base tape with a layer of thermal conductive adhesive. The main components of the thermal conductive adhesive are high-performance pressure-sensitive adhesive and high thermal conductivity ceramic particles. The thickness of the thermal conductive adhesive is 0.3mm. The specific thickness can be adjusted by yourself, generally 0.1-0.5mm;

[0017] Step 3: Cut the release paper into strips with a width of 3 cm to make a release paper tape. The width of the release paper tape is automatically adjusted according to the width of the base tape, and it is sufficient to keep it 1 cm wider than the base tape. A protective paper strip with a width of 3-4 mm is fixed at the two edge positions at the bottom of the release paper tape. The thickness of the protective paper strip is slightly greater than the sum of the thickness of the base tape and the two layers of thermal conductive adhesive. Cut a release paper with a width of 1 mm and stick it on the inside of the protective paper strip to form a release paper strip;

[0018] Step 4: Cover the top surface of the thermally conductive adhesive with a release paper tape, and place the base tape and the thermally conductive adhesive between the two release paper strips to form a thermally conductive double-sided tape;

[0019] Step 5: Use the above-mentioned preparation device to roll up the thermally conductive double-sided tape to complete the entire production process. After rolling up, it is convenient for storage, transportation and sale.

[0020] In the above technical solution, the technical effects and advantages provided by the present invention are:

[0021] 1. By covering the release paper tape on the top surface of the thermal conductive adhesive and fixing two protective paper strips at the bottom of the release paper tape, the base tape and the thermal conductive adhesive are protected between the two protective paper strips, thus avoiding unnecessary adhesion on the side of the thermal conductive double-sided tape, making the use of the thermal conductive double-sided tape more convenient;

[0022] 2. While the thermal conductive double-sided tape is being rolled up, use a paint pen to paint the surface of the release paper tape, and automatically adjust the painted color according to the length of the roll. The color of the release paper tape can more intuitively determine how much thermal conductive double-sided tape is left, which is convenient for subsequent planning and use, improving the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0024] Figure 1 This is the structure diagram of the thermal conductive double-sided tape;

[0025] Figure 2 for Figure 1 Enlarged view of part A in the middle;

[0026] Figure 3 To prepare the device structure diagram;

[0027] Figure 4 A top view of the painted components of the preparation device;

[0028] Figure 5 A bottom-up structural diagram of the painted components of the preparation device;

[0029] Figure 6 It is a structural diagram of the winding component of the preparation device;

[0030] Figure 7 A cross-sectional view of the elastic airbag of the preparation device;

[0031] Figure 8 This is a system diagram of the preparation device.

[0032] Description of reference numerals:

[0033] 1. Base; 2. Column; 3. Slide; 4. Electric push rod; 5. Coloring component; 501. Beam; 502. Linear motor; 503. Paint pen; 6. Drive motor; 7. Fixed plate; 8. Winding component; 801. Hollow shaft; 802. Elastic airbag; 803. Baffle; 804. Air vent; 9. Extension shaft; 10. Controller; 11. Laser length gauge; 12. Base tape; 13. Thermal conductive adhesive; 14. Release paper tape; 15. Protective paper strip; 16. Release paper strip. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0035] The present invention provides Figure 1-2 A novel fast heat dissipation double-sided thermal tape is shown, comprising a base tape 12, wherein the top and bottom ends of the base tape 12 are fixed with thermal conductive adhesive 13, the base tape 12 is made of acrylic polymer, the two layers of thermal conductive adhesive 13 are symmetrically arranged up and down, and the surface of the top thermal conductive adhesive 13 is covered with a layer of release paper tape 14;

[0036] The width of the release paper tape 14 is greater than the width of the base tape 12 and the thermally conductive adhesive 13. The widths of the base tape 12 and the thermally conductive adhesive 13 are the same and are located in the middle of the release paper tape 14. Two protective paper strips 15 are fixedly provided at the bottom of the release paper tape 14. The base tape 12 and the thermally conductive adhesive 13 are located between the two protective paper strips 15. A release paper strip 16 is fixedly provided on the side of the protective paper strip 15 facing the base tape 12.

[0037] The main part of the thermally conductive double-sided tape is the base tape 12 and the thermally conductive adhesive 13 covering the upper and lower sides of the base tape 12. During use, for example, when the heat sink is adhered and fixed to the heat dissipation component, the thermally conductive adhesive 13 at the bottom is responsible for adhering and fixing the base tape 12 to the heat dissipation component. After the release paper tape 14 is torn off, the thermally conductive adhesive 13 at the top is exposed, which is used to adhere the heat sink to the base tape 12. In this way, the heat sink and the heat dissipation component are adhered and fixed;

[0038] When not in use, the thermally conductive double-sided tape is generally in a rolled-up state. The long strips of tape are rolled from the inside to the outside into a coil. The surface of the thermally conductive adhesive 13 on the top is covered with a layer of release paper tape 14, and the thermally conductive adhesive 13 on the bottom is attached to the inner circle of the release paper tape 14 after rolling up. The release paper tape 14 is used to protect the thermally conductive adhesive 13 before use to avoid unnecessary adhesion. While protecting the surface of the thermally conductive adhesive 13, two protective paper strips 15 are provided at the bottom end of the release paper tape 14 to protect the base tape 12 and the thermally conductive adhesive 13 between the two protective paper strips 15, thereby avoiding unnecessary adhesion on the side of the thermally conductive double-sided tape, making the use of the thermally conductive double-sided tape more convenient.

[0039] The produced thermal conductive double-sided tape generally needs to be rolled up for subsequent sale. In order to facilitate the rolling, Figure 3-8 As shown, the present invention also includes a preparation device for the new type of fast heat-dissipating thermally conductive double-sided tape, including a base 1, a removable fixing plate 7 is provided on the top of the base 1, the base 1 and the fixing plate 7 are connected by bolts, one side of the fixing plate 7 is rotatably connected to an extension shaft 9, and the other side of the fixing plate 7 is fixedly provided with a driving motor 6 for driving the extension shaft 9 to rotate.

[0040] The thermally conductive double-sided adhesive tape needs to be continuously rotated during the winding process, so the driving motor 6 drives the extension shaft 9 to rotate, thereby driving the thermally conductive double-sided adhesive tape to rotate.

[0041] The thermally conductive double-sided tape is fixed during the winding process and can be easily removed after winding. Figure 3 , 6 As shown in , 7, a winding assembly 8 is provided on the top of the base 1, and the winding assembly 8 includes a hollow shaft 801 connected to one end of the extension shaft 9 through a flange, and an air guide tube with a valve is fixedly provided at the outer end of the hollow shaft 801 to inflate or discharge the air in the hollow shaft 801;

[0042] An elastic airbag 802 is fixedly provided at the outer end of the hollow shaft 801, and a plurality of air holes 804 are opened at the outer end of the hollow shaft 801. The air holes 804 are located inside the elastic airbag 802. Two baffles 803 that play a limiting role are provided at the outer end of the elastic airbag 802. The thermally conductive double-sided tape is clamped between the two baffles 803 during winding. Two fixing rings are sleeved on the outer end of the elastic airbag 802, and the two baffles 803 are respectively fixed at the outer ends of the two fixing rings.

[0043] The rolled-up heat-conducting double-sided tape has a paper tube made of cardboard as its innermost layer. Before rolling up, the paper tube is sleeved on the outer end of the unexpanded elastic airbag 802, and two fixing rings are sleeved on the outer end of the elastic airbag 802, so that the paper tube is located on both sides of the fixing ring, and the baffle 803 at the outer end of the fixing ring plays a limiting role, ensuring that the heat-conducting double-sided tape is rolled up in the area between the two baffles 803. The spacing between the two baffles 803 is equal to the width of the heat-conducting double-sided tape, which is also equal to the length of the paper tube;

[0044] After the paper tube and the fixing ring are both sleeved, the hollow shaft 801 is inflated, and the air entering the hollow shaft 801 then flows into the elastic airbag 802 through the air vent 804. The elastic airbag 802 expands due to the inflation, thereby clamping the paper tube and the fixing ring at their outer ends from the inside to the outside. When winding, the extension shaft 9 drives the hollow shaft 801 and the elastic airbag 802 to rotate, thereby causing the paper tube to rotate. One end of the thermal conductive double-sided tape is fixed on the paper tube, so it is wound up as the paper tube rotates. After the winding is completed, the air in the hollow shaft 801 and the elastic airbag 802 is discharged. After the elastic airbag 802 shrinks, the paper tube and the wound thermal conductive double-sided tape can be removed.

[0045] During the winding process, the surface of the release paper tape 14 is marked with color, such as Figure 3 , 4 As shown in Figures 5 and 8, a coloring component 5 is provided on the top of the winding component 8, and the coloring component 5 includes a crossbeam 501. A controller 10 and a laser length meter 11 for measuring the winding length of the thermal double-sided tape are fixedly provided at the bottom end of the crossbeam 501. The laser length meter 11 is provided at the input end of the controller 10, and the driving motor 6 is provided at the output end of the controller 10.

[0046] A linear motor 502 is fixedly provided on the front side of the crossbeam 501 , and four transversely arranged paint pens 503 are provided on the mover of the linear motor 502 . The colors of the paint pens 503 are different. The paint pens 503 are made of quick-drying and waterproof paint. The linear motor 502 is arranged at the output end of the controller 10 .

[0047] During the winding process, the laser length measuring instrument 11 above the winding assembly 8 continuously measures the length of the wound thermal double-sided adhesive tape. At the same time, one of the paint pens 503 contacts the surface of the release paper tape 14 during the winding process. As the release paper tape 14 moves, the release paper tape 14 rubs against the tip of the paint pen 503, thereby applying paint on the surface of the release paper tape 14. The paint is applied while measuring. For every 1m of the release paper tape 14 applied, the linear motor 502 controls the paint pen 503 to move horizontally, and replaces a new paint pen 503 to continue applying until a complete roll of thermal double-sided adhesive tape is wound.

[0048] A complete roll of thermally conductive double-sided adhesive is 4 meters long, the release paper tape 14 itself is white, the release paper tape 14 of the first meter of thermally conductive double-sided adhesive is coated with blue, the release paper tape 14 of the second meter of thermally conductive double-sided adhesive is coated with yellow, the release paper tape 14 of the third meter of thermally conductive double-sided adhesive is coated with purple, and the release paper tape 14 of the fourth meter of thermally conductive double-sided adhesive is coated with red. In this way, during use, the color of the release paper tape 14 can be used to more intuitively judge how much of a roll of thermally conductive double-sided adhesive is left, so as to facilitate subsequent planning and use, thereby improving the convenience of use;

[0049] The colors listed above, the order of color arrangement, the length of a complete plate of thermally conductive double-sided tape, and the length of each color applied can be adjusted by yourself. The number of paint pens 503 and the weight of the colors can be set by yourself. The more colors there are, the shorter the length of each color applied, and the more accurate the judgment of the length will be.

[0050] As the winding progresses, the height of the coloring component 5 is continuously adjusted, such as Figure 3 , 8 As shown, a column 2 is fixedly provided at the top of the base 1, and a slide 3 capable of sliding up and down is sleeved on the outer end of the column 2. The crossbeam 501 is fixedly provided on the side of the slide 3 facing the winding assembly 8, and an electric push rod 4 is fixedly provided at the bottom end of the crossbeam 501. The bottom end of the electric push rod 4 is fixedly connected to the top of the base 1.

[0051] During the winding process, as more and more thermally conductive double-sided tape is wound, the distance between the coating portion of the release paper tape 14 and the beam 501 becomes smaller and smaller. Therefore, it is necessary to reasonably control the height of the coloring component 5 so that the contact force between the tip of the paint pen 503 and the electric push rod 4 is appropriate. Therefore, the laser length meter 11 senses the winding length in real time, and controls the extension and retraction of the electric push rod 4 through the controller 10 to control the height of the beam 501, and at the same time makes the slide 3 slide up and down along the column 2 to ensure smooth coating work.

[0052] The present invention also includes a method for preparing the novel fast heat dissipation thermally conductive double-sided adhesive tape, the specific steps of which are as follows:

[0053] Step 1: Select a film made of acrylic polymer, cut the film into long strips, the strip width is 2 cm, and make the base band 12. The strip width can be adjusted according to the use needs, generally 1-5 cm;

[0054] Step 2: Cover the upper and lower surfaces of the base tape 12 with a layer of thermally conductive adhesive 13. The main components of the thermally conductive adhesive 13 are high-performance pressure-sensitive adhesive and high thermally conductive ceramic particles. The thickness of the thermally conductive adhesive 13 is 0.3 mm. The specific thickness is adjusted by the user, generally 0.1-0.5 mm.

[0055] Step 3: Cut the release paper into strips with a width of 3 cm to make a release paper tape 14. The width of the release paper tape 14 is automatically adjusted according to the width of the base tape 12, and is kept 1 cm wider than the base tape 12. A protective paper strip 15 with a width of 3-4 mm is fixed at the two edge positions at the bottom of the release paper tape 14. The thickness of the protective paper strip 15 is slightly greater than the sum of the thicknesses of the base tape 12 and the two layers of thermal conductive adhesive 13. Cut a strip of release paper with a width of 1 mm and stick it on the inner side of the protective paper strip 15 to form a release paper strip 16.

[0056] Step 4: Cover the top surface of the thermally conductive adhesive 13 with a release paper tape 14, and place the base tape 12 and the thermally conductive adhesive 13 between two release paper strips 16, thereby forming a thermally conductive double-sided tape;

[0057] Step 5: Use the above-mentioned preparation device to roll up the thermally conductive double-sided tape to complete the entire production process. After rolling up, it is convenient for storage, transportation and sale.

[0058] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A novel double-sided adhesive tape for rapid heat dissipation, comprising a base tape (12), wherein a thermally conductive adhesive (13) is fixedly disposed at the top and bottom of the base tape (12), and characterized in that: The surface of the top thermal conductive adhesive (13) is covered with a layer of release paper tape (14); The width of the release paper tape (14) is greater than the width of the base tape (12) and the thermally conductive adhesive (13); two protective paper strips (15) are fixedly provided at the bottom end of the release paper tape (14); and a release paper strip (16) is fixedly provided on one side of the protective paper strip (15) facing the base tape (12).

2. The preparation device of the novel fast heat dissipation thermal conductive double-sided adhesive tape according to claim 1 is characterized in that: The utility model comprises a base (1), wherein a detachable fixing plate (7) is provided at the top of the base (1), one side of the fixing plate (7) is rotatably connected to an extension shaft (9), and the other side of the fixing plate (7) is fixedly provided with a driving motor (6) for driving the extension shaft (9) to rotate.

3. The preparation device of a novel fast heat dissipation thermal conductive double-sided adhesive tape according to claim 2, characterized in that: A winding assembly (8) is provided on the top of the base (1), and the winding assembly (8) comprises a hollow shaft (801) connected to one end of the extension shaft (9) via a flange, and an air guide tube with a valve is fixedly provided at the outer end of the hollow shaft (801); An elastic airbag (802) is fixedly provided at the outer end of the hollow shaft (801), a plurality of air holes (804) are opened at the outer end of the hollow shaft (801), the air holes (804) are located inside the elastic airbag (802), and two baffles (803) that play a limiting role are provided at the outer end of the elastic airbag (802).

4. The device for preparing a novel fast heat dissipation thermally conductive double-sided adhesive tape according to claim 3, characterized in that: A coloring component (5) is provided on the top of the winding component (8), and the coloring component (5) comprises a crossbeam (501). A controller (10) and a laser length measuring instrument (11) for measuring the winding length of the thermal double-sided adhesive tape are fixedly provided at the bottom end of the crossbeam (501). The laser length measuring instrument (11) is provided at the input end of the controller (10), and the driving motor (6) is provided at the output end of the controller (10).

5. The device for preparing a novel fast heat dissipating thermally conductive double-sided adhesive tape according to claim 4, characterized in that: A linear motor (502) is fixedly provided on the front side of the crossbeam (501), and a mover of the linear motor (502) is provided with four transversely arranged paint pens (503), the colors of the paint pens (503) being different, and the linear motor (502) is provided at the output end of the controller (10).

6. The device for preparing a novel fast heat dissipating thermally conductive double-sided adhesive tape according to claim 5, characterized in that: A column (2) is fixedly provided at the top of the base (1); a sliding seat (3) capable of sliding up and down is sleeved on the outer end of the column (2); the crossbeam (501) is fixedly provided on the side of the sliding seat (3) facing the winding assembly (8); an electric push rod (4) is fixedly provided at the bottom end of the crossbeam (501); and the bottom end of the electric push rod (4) is fixedly connected to the top of the base (1).

7. A method for preparing the novel fast heat dissipation thermally conductive double-sided adhesive tape according to claim 1, characterized in that: The specific steps are as follows: Step 1: Select a film made of acrylic polymer and cut the film into long strips with a width of 2 cm to make a base tape (12); Step 2: Covering the upper and lower surfaces of the base tape (12) with a layer of thermal conductive adhesive (13), wherein the thickness of the thermal conductive adhesive (13) is 0.3 mm; Step 3: Cut the release paper into long strips with a width of 3 cm to make a release paper tape (14), fix a protective paper strip (15) with a width of 3-4 mm at the two edge positions at the bottom of the release paper tape (14), cut a strip of release paper with a width of 1 mm and stick it on the inner side of the protective paper strip (15) to form a release paper strip (16); Step 4: Cover the top surface of the thermally conductive adhesive (13) with a release paper tape (14), and place the base tape (12) and the thermally conductive adhesive (13) between two release paper strips (16), thereby forming a thermally conductive double-sided tape; Step 5: Use the preparation device described in any one of claims 2-6 to roll up the thermally conductive double-sided tape to complete the entire production process.

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