Flexible radiator

Abstract

The invention relates to a radiator, in particular to a flexible radiator. A flexible radiator comprises a first flexible radiating strip and a second flexible radiating strip. The first flexible heat dissipation strip is provided with a first body part and a first bottom end part, and the first bottom end part is connected with the first body part. The second flexible heat dissipation strip is provided with a second body part and a second bottom end part, and the second bottom end part is connected with the second body part. The first body part and the second body part form a staggered part, and the first bottom end part and the second bottom end part are connected to form a fitting part. The flexible radiator can be suitable for various devices, and can be bent into a shape suitable for arrangement according to the shape, the structure and the like of the internal space of the device.

Description

Technical Field

[0001] The present invention relates to a heat sink, particularly a flexible heat sink. Background Art

[0002] With the innovation of science and technology and the change of business models, the requirements for the performance and stability of electronic products have increased significantly. To improve performance and stability, the traditional heat dissipation method is to use a fin-type rigid heat sink to increase the heat dissipation area. However, the size of the rigid heat sink is often limited by the internal space of the system. In addition, the structure of the rigid heat sink is also easily restricted by the demolding direction of the mold and cannot be extended arbitrarily. Even large-sized heat sinks may have an overweight problem. Summary of the Invention

[0003] In view of the above problems, in one embodiment of the present case, a flexible heat sink is provided, which includes a first flexible heat dissipation strip and a second flexible heat dissipation strip. The first flexible heat dissipation strip has a first body portion and a first bottom end portion, and the first bottom end portion is connected to the first body portion. The second flexible heat dissipation strip has a second body portion and a second bottom end portion, and the second bottom end portion is connected to the second body portion. The first body portion and the second body portion form an overlapping portion, and the first bottom end portion and the second bottom end portion are connected to form a fitting portion.

[0004] In some embodiments, the first bottom end portion and the second bottom end portion overlap to form a fitting portion.

[0005] In some embodiments, the first flexible heat dissipation strip further has a first tail end portion, the first tail end portion is connected to the other end of the first body portion relative to the first bottom end portion, the second flexible heat dissipation strip further has a second tail end portion, and the second tail end portion is connected to the other end of the second body portion relative to the second bottom end portion.

[0006] In some embodiments, the first tail end portion is connected to the second tail end portion.

[0007] In some embodiments, the first flexible heat dissipation strip and the second flexible heat dissipation strip are integrally formed.

[0008] In some embodiments, the first tail end portion and the second tail end portion form a folding portion, the folding portion is triangular, and the fitting portion is rectangular.

[0009] In some embodiments, the first body portion has a plurality of first holes, the plurality of first holes are arranged at equal intervals, the second body portion has a plurality of second holes, and the plurality of second holes are arranged at equal intervals.

[0010] In some embodiments, it further includes a third flexible heat dissipation strip and a fourth flexible heat dissipation strip. The third flexible heat dissipation strip has a third body portion and a third bottom end portion, and the third bottom end portion is connected to the third body portion. The fourth flexible heat dissipation strip has a fourth body portion and a fourth bottom end portion, and the fourth bottom end portion is connected to the fourth body portion. The third body portion and the fourth body portion form another staggered portion, and the third bottom end portion and the fourth bottom end portion are connected to form another fitting portion. One of the first bottom end portion or the second bottom end portion extends out a first extension portion, the third bottom end portion or the fourth bottom end portion extends out a second extension portion, and the first extension portion is connected to the second extension portion.

[0011] In some embodiments, the first flexible heat dissipation strip, the second flexible heat dissipation strip, the third flexible heat dissipation strip, and the fourth flexible heat dissipation strip are integrally formed.

[0012] In some embodiments, the fitting portion and the other fitting portion are located on the same plane.

[0013] In some embodiments, one of the first flexible heat dissipation strip and the second flexible heat dissipation strip and one of the third flexible heat dissipation strip and the fourth flexible heat dissipation strip have a bent portion at the connection, and the fitting portion and the other fitting portion are non-coplanar.

[0014] In some embodiments, the staggered portion is in a reciprocally wound shape.

[0015] Moreover, in one embodiment, a flexible radiator is provided, including a base and a plurality of heat dissipation columns. Each of the plurality of heat dissipation columns includes a first column portion, a first column bottom end portion, a second column portion, and a second column bottom end portion. The first column bottom end portion is connected to the first column portion, the second column bottom end portion is connected to the second column portion. The first column portion and the second column portion are wound to form a column staggered portion, and the first column bottom end portion and the second column bottom end portion are connected to form a column fitting portion, and the column fitting portion is attached to the base.

[0016] In some embodiments, the first column portion further has a first column tail end portion, the first column tail end portion is connected to the other end of the first column portion relative to the first column bottom end portion, the second column portion further has a second column tail end portion, and the second column tail end portion is connected to the other end of the second column portion relative to the second column bottom end portion.

[0017] In some embodiments, the first column tail end portion is connected to the second column tail end portion.

[0018] In some embodiments, the first column tail end portion and the second column tail end portion form a column folding portion, the column folding portion is triangular, and the column fitting portion is rectangular.

[0019] In some embodiments, the base includes a first body and a second body on opposite sides, and one of each column fitting portion is attached to the first body of the base, and the other of each column fitting portion is attached to the second body of the base.

[0020] In some embodiments, the first column portion has a plurality of first openings, and the plurality of first openings are arranged at equal intervals. The second column portion has a plurality of second openings, and the plurality of second openings are arranged at equal intervals.

[0021] In some embodiments, the plurality of heat dissipation columns and the base are integrally formed.

[0022] In some embodiments, the column intersection portion is in a reciprocally wound shape.

[0023] In summary, in one embodiment, a flexible heat sink is provided. By winding the first flexible heat dissipation strip and the second flexible heat dissipation strip to form an intersection portion, the flexible heat sink can be attached to the device with the attachment portion. Due to the flexibility of the flexible heat sink, the flexible heat sink can be applied to various devices, and can also be bent into a suitable shape according to the shape and structure of the internal space of the device. Description of the Drawings

[0024] Figure 1 Shown is a perspective view of a flexible heat sink according to some embodiments;

[0025] Figure 2 Shown is Figure 1 A partial enlarged view of the position marked E;

[0026] Figure 3 Shown is according to Figure 1 A perspective schematic diagram of the unfolded form of the flexible heat sink according to the embodiment;

[0027] Figure 4 Shown is Figure 1 A schematic diagram of the manufacturing process of the flexible heat sink according to the embodiment (one);

[0028] Figure 5 Shown is Figure 1 A schematic diagram of the manufacturing process of the flexible heat sink according to the embodiment (two);

[0029] Figure 6 Shown is Figure 1 A schematic diagram of the manufacturing process of the flexible heat sink according to the embodiment (three);

[0030] Figure 7 Shown is a perspective schematic diagram of a flexible heat sink according to some embodiments;

[0031] Figure 8 Shown is Figure 7 A perspective schematic diagram of another application of the flexible heat sink according to the embodiment;

[0032] Figure 9 Shown is a perspective view of a flexible heat sink according to some embodiments;

[0033] Figure 10Shown is a perspective view of a flexible radiator according to some embodiments;

[0034] Figure 11 Shown is Figure 10 A partial enlarged view of the marked position F;

[0035] Figure 12 Shown is according to Figure 10 Schematic diagram (1) of the manufacturing process of a flexible radiator according to an embodiment;

[0036] Figure 13 Shown is according to Figure 10 Schematic diagram (2) of the manufacturing process of a flexible radiator according to an embodiment;

[0037] Figure 14 Shown is according to Figure 10 Schematic diagram (3) of the manufacturing process of a flexible radiator according to an embodiment;

[0038] Figure 15 Shown is a perspective view of a flexible radiator according to some embodiments.

[0039]

Explanation of reference numerals

[0040] 100, flexible radiator;

[0041] 110, first flexible heat dissipation strip;

[0042] 111, first body part;

[0043] 1111, first hole;

[0044] 112, first bottom end part;

[0045] 113, first tail end part;

[0046] 120, second flexible heat dissipation strip;

[0047] 121, second body part;

[0048] 1211, second hole;

[0049] 122, second bottom end part;

[0050] 123, second tail end part;

[0051] 130, intersection part;

[0052] 131, reciprocating section;

[0053] 140, fitting part;

[0054] 150, folding part;

[0055] 160, first extension part;

[0056] 170. Bent portion;

[0057] 200. Another flexible heat sink;

[0058] 210. Third flexible heat dissipation strip;

[0059] 211. Third body portion;

[0060] 212. Third bottom end portion;

[0061] 220. Fourth flexible heat dissipation strip;

[0062] 221. Fourth body portion;

[0063] 222. Fourth bottom end portion;

[0064] 230. Interleaved portion;

[0065] 240. Fitting portion;

[0066] 260. Second extension portion;

[0067] 300. Flexible heat sink;

[0068] 310. Base;

[0069] 310A. First body;

[0070] 310B. Second body;

[0071] 330. Heat dissipation column;

[0072] 331. First column portion;

[0073] 3311. First opening;

[0074] 332. First column bottom end portion;

[0075] 333. Second column portion;

[0076] 3331. Second opening;

[0077] 334. Second column bottom end portion;

[0078] 335. First column tail end portion;

[0079] 336. Second column tail end portion;

[0080] 340. Column interleaved portion;

[0081] 341. Column reciprocating section;

[0082] 350. Column fitting portion;

[0083] 360. Column folding portion;

[0084] 390. Grooving;

[0085] A, B. Segment distance;

[0086] C1, C2, C3, C4. Major axis. Detailed implementation manner

[0087] Please refer to Figure 1 . Figure 1 FIG. is a perspective view of a flexible radiator according to some embodiments. A flexible radiator 100 includes a first flexible heat dissipation strip 110 and a second flexible heat dissipation strip 120. The first flexible heat dissipation strip 110 has a first body portion 111 and a first bottom end portion 112, and the first bottom end portion 112 is connected to the first body portion 111. The second flexible heat dissipation strip 120 has a second body portion 121 and a second bottom end portion 122, and the second bottom end portion 122 is connected to the second body portion 121. The first body portion 111 and the second body portion 121 form an interleaved portion 130, and the first bottom end portion 112 and the second bottom end portion 122 are connected to form a fitting portion 140.

[0088] In use, the fitting portion 140 of the flexible radiator 100 is used to contact a component to be cooled (such as a heat source) for heat exchange. Then, the fitting portion 140 conducts heat to the interleaved portion 130. Since the interleaved portion 130 has a large heat dissipation area and its gaps allow air flow to pass through, the interleaved portion 130 can achieve a better heat dissipation effect.

[0089] Secondly, the first flexible heat dissipation strip 110 and the second flexible heat dissipation strip 120 can be formed of a flexible material and can be bent according to requirements to form the interleaved portion 130. For example, the flexible radiator 100 is formed by winding the first flexible heat dissipation strip 110 and the second flexible heat dissipation strip 120 around each other to form the interleaved portion 130. When applied to devices with relatively narrow internal spaces such as drones and mixed reality helmets, users can, according to the space provided for the radiator in the device, apply force to stretch or compress the interleaved portion 130 (i.e., Figure 1 the distance in the vertical direction of the viewing angle), to adjust the size of the flexible radiator 100 and adapt to the internal space of the device. In addition, users can also bend the interleaved portion 130 according to the shape of the space available for placing the radiator for corresponding adaptation, such as making the outer shape of the interleaved portion 130 in an S shape, an L shape or other shapes. Therefore, users can attach the fitting portion 140 to the surface of the heat source in the device to conduct heat to the interleaved portion 130. Since air flow can pass through the gaps generated by the winding of the first flexible heat dissipation strip 110 and the second flexible heat dissipation strip 120, the heat generated by the heat source can be dissipated at the interleaved portion 130. Therefore, in addition to being able to change the size through the interleaved portion 130, the flexible radiator 100 can also maintain the heat dissipation effect.

[0090] Please refer to Figure 2 , Figure 2 is Figure 1 a partial enlarged view showing the position E. The interleaved portion 130 includes a reciprocating section 131( Figure 2 the section marked A), and the reciprocating section 131 refers to the section from the peak of one bend to the peak of the next bend. The length of the reciprocating section 131 in the Figure 2 vertical direction is called the section distance A. When the interleaved portion 130 is over-compressed, the first body portion 111 and the second body portion 121 are closer to each other. Thus, the section distance A becomes shorter, reducing the gap for the air flow to pass through the interleaved portion 130. On the contrary, when the interleaved portion 130 is stretched and the section distance A becomes longer, the gap of the interleaved portion 130 can be increased, improving the heat dissipation effect. In this way, the interleaved portion 130 has enough gaps for the air flow to pass through to maintain the heat dissipation effect. In some embodiments, the number of reciprocating sections 131 of the interleaved portion 130 can also be increased or decreased according to the usage requirements. For example, it can be reduced to that there is only 0.5 reciprocating section 131 in one interleaved portion 130.

[0091] Please refer to again Figure 1 , in some embodiments, the first flexible heat dissipation strip 110 further has a first tail end portion 113, and the first tail end portion 113 is connected to the other end of the first body portion 111 relative to the first bottom end portion 112. The second flexible heat dissipation strip 120 further has a second tail end portion 123, and the second tail end portion 123 is connected to the other end of the second body portion 121 relative to the second bottom end portion 122. In some embodiments, the first tail end portion 113 is connected to the second tail end portion 123 to connect the first flexible heat dissipation strip 110 and the second flexible heat dissipation strip 120 to each other. In some embodiments, the first flexible heat dissipation strip 110 and the second flexible heat dissipation strip 120 are not limited to connecting the first tail end portion 113 to the second tail end portion 123. They can also be connected to each other by the mutual winding of the first body portion 111 and the second body portion 121 and the fitting of the first bottom end portion 112 and the second bottom end portion 122. Further, as Figure 1 shown, a folded portion 150 is formed at the connection of the first tail end portion 113 and the second tail end portion 123. In some embodiments, the folded portion 150 is triangular and the fitting portion 140 is rectangular, but it is not limited thereto. In the following manufacturing method, according to the different angles between the first tail end portion 113 and the second tail end portion 123, the folded portion 150 can also have different shapes. According to the different shapes of the first bottom end portion 112 and the second bottom end portion 122, the fitting portion 140 can also have different shapes.

[0092] In the foregoing embodiments, the first flexible heat dissipation strip 110 and the second flexible heat dissipation strip 120 may be separate independent elements respectively, and are connected to each other at the first tail end 113 and the second tail end 123, or are connected to each other at the first bottom end 112 and the second bottom end 122. However, this is not limiting. In some embodiments, the first flexible heat dissipation strip 110 and the second flexible heat dissipation strip 120 are two sections of a single strip-shaped element formed integrally (referred to as a single element) (such as Figure 3 shown). The method of manufacturing the flexible radiator 100 from the single strip-shaped element can be seen in Figures 3 to 6 .

[0093] Please refer to Figures 3 to 6 . Figure 3 is a three-dimensional schematic diagram of the unfolded state of the flexible radiator according to the Figure 1 embodiment. Figure 4 is Figure 1 a schematic diagram (one) of the manufacturing process of the flexible radiator according to the Figure 5 embodiment. Figure 1 is Figure 6 a schematic diagram (two) of the manufacturing process of the flexible radiator according to the Figure 1 embodiment. Figure 3 The shown flexible radiator 100 is in an unfolded state before being wound. First, as Figure 4 shown, the second body portion 121 is bent so that the long axis C2 of the second body portion 121 is substantially perpendicular to the long axis C1 of the first body portion 111 and the folded edge of the overlapping portion where the second body portion 121 and the first body portion 111 are bent forms an angle of about 45 degrees with the long axis C1 of the first body portion 111 (that is, the long axis C1 of the first body portion 111 and the long axis C2 of the second body portion 121 form a 90-degree angle). Next, as Figure 5 shown, the first body portion 111 is bent toward the opposite side (such as the location of the original second body portion 121 in Figure 3 ). Next, as Figure 6 shown, the second body portion 121 is bent toward the opposite side. Further, repeat the process of Figures 5 to 6 , repeatedly overlapping the first body portion 111 and the second body portion 121 until, as Figure 1 shown, the first body portion 111 and the second body portion 121 are wound to form an interleaved portion 130, and the first bottom end 112 and the second bottom end 122 are connected to form a flat joint portion 140. Refer to Figure 4, in this embodiment, it is shown that the hem of the overlapping part where the second body part 121 is bent with the first body part 111 forms an angle of about 45 degrees with the long axis C1 of the first body part 111, but it is not limited thereto. In some embodiments, the hem of the overlapping part where the second body part 121 is bent with the first body part 111 may also form an included angle of about 25 to 65 degrees with the long axis C1 of the first body part 111 (that is, the long axis C1 of the first body part 111 and the long axis C2 of the second body part 121 form an angle of 45 to 135 degrees). In some embodiments, in order to avoid excessive compression after the first body part 111 and the second body part 121 are repeatedly overlapped, which may affect the heat dissipation effect.

[0094] Refer to again Figure 1 , in this embodiment, the first bottom end part 112 and the second bottom end part 122 overlap to form a fitting part 140. The first bottom end part 112 of this embodiment is a square plane, and the second bottom end part 122 is also a square plane. The fitting part 140 with an overlapping plane is formed by overlapping and connecting the two planes, but it is not limited thereto. The first bottom end part 112 and the second bottom end part 122 may also be right triangle planes respectively, and the fitting part 140 with a complete square plane is formed by splicing the two right triangle planes. In some embodiments, the first bottom end part 112 and the second bottom end part 122 do not contact each other, which means that they are respectively in contact with the element to be cooled, but there is a distance between their edges.

[0095] Please refer to Figure 7 and Figure 8 . Figure 7 Is a three-dimensional schematic diagram of a flexible heat sink according to some embodiments. Figure 8 Is Figure 7 A three-dimensional schematic diagram of another application of the flexible heat sink in the embodiment. In this embodiment, the flexible heat sink 100 is connected to another flexible heat sink 200. The other flexible heat sink 200 has the same structure as the flexible heat sink 100, so the same parts will not be repeated here. The other flexible heat sink 200 includes a third flexible heat dissipation strip 210 and a fourth flexible heat dissipation strip 220. The third flexible heat dissipation strip 210 has a third body part 211 and a third bottom end part 212, and the third bottom end part 212 is connected to the third body part 211. The fourth flexible heat dissipation strip 220 has a fourth body part 221 and a fourth bottom end part 222, and the fourth bottom end part 222 is connected to the fourth body part 221. The third body part 211 and the fourth body part 221 form another staggered part 230, and the third bottom end part 212 is connected to the fourth bottom end part 222 to form another fitting part 240.

[0096] Such as Figure 7As shown, in this embodiment, one of the first bottom end portion 112 and the second bottom end portion 122 extends out the first extension portion 160, and one of the third bottom end portion 212 and the fourth bottom end portion 222 extends out the second extension portion 260. The first extension portion 160 is connected to the second extension portion 260. In this way, multiple structures of the flexible heat sink can be connected according to requirements such as heat dissipation and device structure. In this embodiment, only the third flexible heat dissipation strip 210 and the fourth flexible heat dissipation strip 220 of another flexible heat sink 200 are disclosed, but it is not limited thereto. For example, as Figure 7 shown, there can also be a flexible heat sink formed by a fifth flexible heat dissipation strip and a sixth flexible heat dissipation strip.

[0097] For example, as Figure 7 shown, in this embodiment, the fitting portion 140 and another fitting portion 240 are located on the same plane and can be applied to fit a device with a smooth surface, but it is not limited thereto. For example, as Figure 8 shown, in some embodiments, when it is desired to be applied to a device with a curved surface or a bent surface, there is a bent portion 170 between the first extension portion 160 and the second extension portion 260. Through bending, the fitting portion 140 and another fitting portion 240 are non-coplanar, for example, are respectively located on two different intersecting planes. In this way, the fitting portion 140 and another fitting portion 240 can be fitted to a device with a curved surface or a bent surface, for example.

[0098] For example, as Figure 7 and Figure 8 shown, in this embodiment, the flexible heat sink 100 and another flexible heat sink 200 can be respectively an independent element and are connected to each other through the extension portion to form a single element, but it is not limited thereto. In some embodiments, the first flexible heat dissipation strip 110 and the second flexible heat dissipation strip 120 of the flexible heat sink 100 and the third flexible heat dissipation strip 210 and the fourth flexible heat dissipation strip 220 of another flexible heat sink 200 are originally a single strip-shaped element, that is, an integrally formed heat dissipation strip.

[0099] Please refer to Figure 9 . Figure 9 is a perspective view of a flexible heat sink according to some embodiments. In this embodiment, the first body portion 111 has a plurality of first holes 1111 arranged at equal intervals, the second body portion 121 has a plurality of second holes 1211 arranged at equal intervals, and the plurality of first holes 1111 and the plurality of second holes 1211 are arranged alternately at the intersection portion 130. For example, as Figure 9As shown, in the staggered portion 130, a plurality of first holes 1111 are respectively located at the peaks of the bends of the first body portion 111, and a plurality of second holes 1211 are respectively located at the peaks of the bends of the second body portion 121, thus forming the first holes 1111 and the second holes 1211 arranged in a staggered manner, so as to improve the heat dissipation effect of the flexible radiator 100 through the plurality of holes.

[0100] Please refer to Figure 10 and Figure 11 . Figure 10 is a perspective view of a flexible radiator according to some embodiments. Figure 11 is Figure 10 a partial enlarged view marking the position F. The above embodiments show that the flexible radiator 100 is connected to another flexible radiator 200 through an extension portion, but it is not limited thereto. In this embodiment, the flexible radiator 300 includes a base 310 and a plurality of heat dissipation columns 330. As Figure 10 and Figure 11 shown, each of the plurality of heat dissipation columns 330 of the flexible radiator 300 includes a first column portion 331, a first column bottom end portion 332, a second column portion 333, and a second column bottom end portion 334. The first column bottom end portion 332 is connected to the first column portion 331, the second column bottom end portion 334 is connected to the second column portion 333, the first column portion 331 and the second column portion 333 form a column staggered portion 340, the first column bottom end portion 332 and the second column bottom end portion 334 are connected to form a column fitting portion 350, and the column fitting portion 350 is fitted on the base 310. In this embodiment, the base 310 and the plurality of heat dissipation columns 330 are a single integrally formed element, but it is not limited thereto. The base 310 and the plurality of heat dissipation columns 330 may also be separate elements respectively. In this embodiment, the flexible radiator 300 is also formed of a flexible material, and a part of the base 310 can be bent to form the heat dissipation columns 330, and then the column staggered portion 340 can be wound out by the column portions of the heat dissipation columns 330 to complete a structure similar to that of the flexible radiator 100, and by connecting with the flexible radiator 100 and another flexible radiator 200, it can be applied to the element to be cooled.

[0101] As Figure 11 shown, in this embodiment, the column staggered portion 340 includes a column reciprocating section 341 ( Figure 11 the section marked B). As Figure 14As shown, the column reciprocating section 341 refers to the section from the peak of a bend to the peak of the next bend, which avoids excessive compression of the column intersection 340, causing the first column part 331 and the second column part 333 to be in close contact with each other, making it difficult for air flow to pass through the gap of the column intersection 340 and resulting in a decrease in heat dissipation effect. In some embodiments, the number of column reciprocating sections 341 of the column intersection 340 can also be increased or decreased according to usage requirements. For example, it can be reduced to only 0.5 column reciprocating sections 341 for one column intersection. The winding method of the flexible heat sink 300 can be seen in Figures 12 to 14 .

[0102] Please refer to Figures 12 to 14 . Figure 12 It is a schematic diagram (one) of the manufacturing process of the heat sink according to Figure 10 the embodiment. Figure 13 It is a schematic diagram (two) of the manufacturing process of the heat sink according to Figure 10 the embodiment. Figure 14 It is a schematic diagram (three) of the manufacturing process of the heat sink according to Figure 10 the embodiment. Figure 12 It shows the state of the flexible heat sink 300 before winding. First, as Figure 13 shown, the bases 310 are locally folded and overlapped with each other, and the parts on the left and right sides are bent together. Due to the plurality of cut grooves 390 on the bases 310, the overlapping parts of the bases 310 form a plurality of heat dissipation columns 330, and the bent parts on the left and right sides also form a plurality of heat dissipation columns 330. Then, as Figure 14 shown, the first column part 331 is bent so that the long axis C3 of the first column part 331 is substantially perpendicular to the long axis C4 of the second column part 333 and the folded edge of the overlapping part where the first column part 331 and the second column part 333 are bent forms an angle of about 45 degrees with the long axis C4 of the second column part 333 (that is, the long axis C3 of the first column part 331 and the long axis C4 of the second column part 333 form a 90-degree angle). Then, hold the overlapping part where the first column part 331 and the second column part 333 are bent and bend it towards the second column part 333. Then, bend the first column part 331 towards the opposite side again. Repeat the actions of bending the overlapping part where the first column part 331 and the second column part 333 are bent and bending the first column part 331 towards the opposite side to complete the column intersection 340 formed by the mutual winding of the first column part 331 and the second column part 333 as shown in Figure 10 . In this way, different structural states can be achieved by the flexible heat sink 300 according to the shape and heat dissipation requirements of the application device.

[0103] Refer to Figure 10 again. In this embodiment, the base 310 includes a first body 310A and a second body 310B on opposite sides. In this embodiment, one of each column fitting part 350 is fitted to the first body 310A, and the other of each column fitting part 350 is fitted to the second body 310B. AsFigure 13 As shown, to prevent the heat dissipation columns 330 from being arranged side by side on the same side and affecting the heat dissipation effect, the heat dissipation columns 330 are sequentially and staggeredly attached to both sides of the base 310 to maintain a space for the air flow to pass through. In addition, as Figure 13 shown, the first column portion 331 further has a first column tail end portion 335, and the first column tail end portion 335 is connected to the other end of the first column portion 331 relative to the first column bottom end portion 332. The second column portion 333 further has a second column tail end portion 336, and the second column tail end portion 336 is connected to the other end of the second column portion 333 relative to the second column bottom end portion 334, and the first column tail end portion 335 is connected to the second column tail end portion 336. As Figure 13 shown, in this embodiment, the folded edge of the overlapping part where the first column portion 331 and the second column portion 333 are bent forms an angle of about 45 degrees with the long axis C4 of the second column portion 333, making the column folding portion 360 triangular and the column fitting portion 350 rectangular, but not limited thereto. Depending on the different angles, the column folding portion 360 can also have different shapes.

[0104] Please refer to Figure 15 . Figure 15 is a perspective view of a flexible heat sink according to some embodiments. The first column portion 331 has a plurality of first openings 3311 arranged at equal intervals, and the second column portion 333 has a plurality of second openings 3331 arranged at equal intervals. The plurality of first openings 3311 and the plurality of second openings 3331 are staggeredly arranged at the column intersection portion 340. As Figure 15 shown, in the column intersection portion 340, a plurality of first openings 3311 are respectively located at the peaks of the bending portions of the first column portion 331, and a plurality of second openings 3331 are respectively located at the peaks of the bending portions of the second column portion 333, thus forming the staggeredly arranged first openings 3311 and second openings 3331 to improve the heat dissipation effect of the heat dissipation columns 330 through the plurality of openings.

[0105] Refer to again Figure 10 , in this embodiment, Figure 10 the heat dissipation columns 330 connected to the left side of the first body 310A and the right side of the second body 310B in

[0106] In summary, in one embodiment, a flexible heat sink is provided. By winding the first flexible heat dissipation strip and the second flexible heat dissipation strip to form an interleaved portion, the flexible heat sink can be attached to a device with a fitting portion. Due to the flexibility of the flexible heat sink, the flexible heat sink can be applied to various devices, and can also be bent into a suitable shape according to the shape and structure of the internal space of the device.

Claims

1. A flexible heat sink, comprising: A first flexible heat dissipation strip having a first body portion and a first bottom end portion, wherein the first bottom end portion is connected to the first body portion; as well as A second flexible heat dissipation strip having a second body portion and a second bottom end portion, wherein the second bottom end portion is connected to the second body portion; The first body portion and the second body portion form an interlaced portion, and the first bottom end portion and the second bottom end portion are connected to form a fitting portion.

2. The flexible heat sink according to claim 1, wherein: The first bottom end portion overlaps with the second bottom end portion to form the fitting portion.

3. The flexible heat sink according to claim 1, wherein: The first flexible heat dissipation strip also has a first tail end portion, which is connected to the other end of the first body relative to the first bottom end portion. The second flexible heat dissipation strip also has a second tail end portion, which is connected to the other end of the second body relative to the second bottom end portion.

4. The flexible heat sink according to claim 3, wherein: The first tail end portion is connected to the second tail end portion.

5. The flexible heat sink according to claim 4, wherein: The first flexible heat dissipation strip and the second flexible heat dissipation strip are integrally formed.

6. The flexible heat sink according to claim 4, wherein: The first tail end portion and the second tail end portion form a folded portion, the folded portion is triangular, and the fitting portion is rectangular.

7. The flexible heat sink according to claim 1, wherein: The first body portion has a plurality of first holes, each of which is arranged at an equal distance. The second body portion has a plurality of second holes, each of which is arranged at an equal distance.

8. The flexible heat sink according to claim 1 further comprises: A third flexible heat dissipation strip having a third body portion and a third bottom end portion, wherein the third bottom end portion is connected to the third body portion; as well as A fourth flexible heat dissipation strip having a fourth body portion and a fourth bottom end portion, wherein the fourth bottom end portion is connected to the fourth body portion; The third body portion and the fourth body portion form another interlaced portion, and the third bottom end portion is connected to the fourth bottom end portion to form another fitting portion; A first extending portion is extended from one of the first bottom end portion or the second bottom end portion, a second extending portion is extended from the third bottom end portion or the fourth bottom end portion, and the first extending portion is connected to the second extending portion.

9. The flexible heat sink according to claim 8, wherein: The first flexible heat dissipation strip, the second flexible heat dissipation strip, the third flexible heat dissipation strip and the fourth flexible heat dissipation strip are integrally formed.

10. The flexible heat sink according to claim 8, wherein: The bonding portion and the other bonding portion are located on the same plane.

11. The flexible heat sink according to claim 8, wherein: A connection between one of the first flexible heat dissipation strip and the second flexible heat dissipation strip and one of the third flexible heat dissipation strip and the fourth flexible heat dissipation strip has a bending portion, and the bonding portion and the other bonding portion are not coplanar.

12. The flexible heat sink according to claim 1, wherein: The interlaced portion is in a reciprocating winding shape.

13. A flexible heat sink comprising: a base; and A plurality of heat dissipation columns, each of the plurality of heat dissipation columns includes a first column portion, a first column bottom end portion, a second column portion and a second column bottom end portion, the first column bottom end portion is connected to the first column portion, the second column bottom end portion is connected to the second column portion, the first column portion and the second column portion are intertwined to form a column interlaced portion, the first column bottom end portion is connected to the second column bottom end portion to form a column fitting portion, and the column fitting portion is fitted on the base.

14. The flexible heat sink according to claim 13, wherein: The first column portion also has a first column tail end portion, which is connected to the other end of the first column portion relative to the first column bottom end portion, and the second column portion also has a second column tail end portion, which is connected to the other end of the second column portion relative to the second column bottom end portion.

15. The flexible heat sink according to claim 14, wherein: The first column tail end portion is connected to the second column tail end portion.

16. The flexible heat sink according to claim 15, wherein: The first column tail end portion and the second column tail end portion form a column folding portion, the column folding portion is triangular, and the column fitting portion is rectangular.

17. The flexible heat sink according to claim 13, wherein: The base includes a first body and a second body on opposite sides, one of the column fitting parts is fitted to the first body of the base, and the other of the column fitting parts is fitted to the second body of the base.

18. The flexible heat sink according to claim 13, wherein: The first column portion has a plurality of first openings, each of which is arranged at an equal distance. The second column portion has a plurality of second openings, each of which is arranged at an equal distance.

19. The flexible heat sink according to claim 13, wherein: The plurality of heat dissipation columns and the base are integrally formed.

20. The flexible heat sink according to claim 13, wherein: The column interlaced portion is in a reciprocating winding shape.

Images