Fin type radiator

Abstract

The utility model relates to a fin type radiator which comprises a bottom plate, a heat pipe, fins and a top cover, the multiple fins are arranged on the heat pipe in a penetrating mode and are arranged in a stacked mode in the length direction of the heat pipe, each fin is provided with at least two penetrating holes, the penetrating holes of the fins are aligned, at least two elastic strips are arranged on the bottom face of the top cover, and the elastic strips are arranged on the bottom face of the top cover. First buckling blocks and second buckling blocks are arranged on the two opposite sides of the two elastic strips, the first buckling blocks and the second buckling blocks are sequentially arranged up and down in the length direction of the elastic strips, and the thickness of the first buckling blocks and the thickness of the second buckling blocks are smaller than the distance between every two adjacent fins; the top surface of the first buckling block is a horizontal plane, the bottom surface of the first buckling block is a first inclined plane which is inclined upwards, the top surface of the second buckling block is a second inclined plane which is inclined downwards, the bottom surface of the second buckling block is a third inclined plane which is inclined upwards, and the top cover is buckled into the fin through holes through the elastic strips to be fixed. And the top cover is beautiful.

Description

Technical Field

[0001] This application relates to the technical field of heat sinks, and more specifically, to a finned heat sink. Background Technology

[0002] High-power electronic components such as computer CPUs, northbridge chips, and graphics cards generate a large amount of heat during operation. If this heat cannot be effectively dissipated, it will cause the temperature of the electronic components to rise sharply, seriously affecting their normal operation. Therefore, heat dissipation devices are needed to cool these electronic components.

[0003] In related technologies, finned heat sinks generally include a base plate, at least one heat pipe erected on the base plate, and several fins passing through the heat pipe. The fins are arranged in a vertically stacked manner to mount the base plate onto the heat source to be dissipated, so that the heat generated by the heat source can be transferred to the heat pipe through contact with the base plate. Then, the heat pipe conducts heat quickly, and the heat is released by each fin to achieve the heat dissipation effect. Since the heat pipe penetrates through the fin layer and is exposed at the top of the fin layer, the overall appearance of the heat sink is not good. Therefore, a top cover is usually provided. The top cover is usually fixed to the top of the fin layer with screws to cover the heat pipe ports. Specifically, the uppermost fin has a threaded hole, and the screw passes through the top of the top cover and is threaded into the threaded hole to fix the top cover. With this design, the top of the screw is exposed, which affects the overall aesthetics of the top cover, and the screwing operation makes the installation of the top cover more troublesome. Utility Model Content

[0004] To address the problem in related technologies where the top cover of a finned heatsink is fixed to the top of the fin layer with screws, affecting the overall aesthetics of the top cover and causing inconvenience in disassembly and assembly, this application provides a finned heatsink.

[0005] A finned heat sink includes a base plate, heat pipes, fins, and a top cover. At least one heat pipe is mounted on the base plate. Several fins are inserted through and fixed to the heat pipes, with the fins arranged in a stacked configuration along the length of the heat pipes. Each fin has at least two insertion holes, and the insertion holes are aligned when the fins are inserted through the heat pipes. The bottom surface of the top cover has at least two elastic strips. A first latch and a second latch are provided on opposite sides of each elastic strip. The first latch and the second latch are arranged vertically along the length of the elastic strips. The thickness of the first fastener and the thickness of the second fastener are both less than the distance between two adjacent fins. The top surface of the first fastener is set as a horizontal plane and the bottom surface is a first inclined plane that slopes upward. The top surface of the second fastener is a second inclined plane that slopes downward. The bottom surface of the second fastener is a third inclined plane that slopes upward. The top cover is located on the top surface of the uppermost fin and covers the port of the heat pipe. The two elastic strips are respectively aligned with the insertion holes of the fins and pass through the insertion holes. The top surface of the first fastener abuts against the bottom surface of one fin, the top surface of the second fastener abuts against the bottom surface of the next fin, and the elastic strips elastically press against the inner wall of the insertion hole.

[0006] Preferably, each of the fins is provided with a through hole, and the heat pipe is inserted through the through hole.

[0007] Preferably, the fins are fixed to the heat pipe via an interference fit through the inner wall of the through hole.

[0008] Preferably, the fins are welded and fixed to the outer wall of the heat pipe through the periphery of the through hole.

[0009] Preferably, the bottom of the top cover is recessed with a relief groove, the top of the heat pipe is hidden in the relief groove, and the elastic strip is disposed on the bottom wall of the relief groove.

[0010] Preferably, the top cover and the elastic strip are both made of plastic and are integrally formed.

[0011] The beneficial technical effects of this application are as follows: Two symmetrical elastic strips elastically press against the fins, and the external tension of the two elastic strips fixes the fins to the top cover. The first fastener secures the bottom surface of the fin, and the second fastener interferes with the bottom surface of another fin. The two fasteners provide a strong fixing effect, making it difficult for the top cover to detach from the fins, thus ensuring a stable cover for the heat pipe ports. Furthermore, the bottom surface of the first fastener, located below the elastic strips, is set as an upward-sloping first inclined surface, and the bottom surface of the second fastener is set as a downward-sloping third inclined surface. The inclined surface allows the top cover to be subjected to downward pressure when the elastic strip is inserted into the insertion hole of the fin. During the insertion process, the third inclined surface of the second buckle and the first inclined surface of the first buckle are pressed against the edge of the fin's insertion hole, causing the elastic strip to elastically deform. The two elastic strips swing in opposite directions, and the first and second buckles move to the space between two adjacent fins. The elastic strip rebounds, causing the top surface of the first buckle to abut against the bottom surface of one fin, and the top surface of the second buckle to abut against the bottom surface of the other fin facing downwards, thus installing the top cover. Compared to fixing the top cover to the fins with screws, the elastic strip is hidden on the bottom surface of the top cover, making the outer surface of the top cover more aesthetically pleasing as there are no slots for screws. Furthermore, the top cover is installed by simply pressing down, which is simpler and more convenient than tightening screws. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a finned heat sink after partial polishing in this embodiment.

[0013] Figure 2 for Figure 1 A magnified view of position A in the middle.

[0014] Reference numerals: 1. Base plate; 2. Heat pipe; 3. Fin; 31. Flat plate; 311. Through hole; 312. Insertion hole; 32. Side plate; 4. Connecting plate; 5. Top cover; 51. Clearance groove; 52. Elastic strip; 521. First fastening block; 5211. Horizontal plane; 5212. First inclined plane; 522. Second fastening block; 5221. Second inclined plane; 5222. Third inclined plane. Detailed Implementation

[0015] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0016] Reference Figure 1 and Figure 2A finned heat sink includes a base plate 1, heat pipes 2, and fins 3. Multiple heat pipes 2 are vertically mounted on the base plate 1. Several fins 3 are also included, each fin comprising a planar plate 31 and two side plates 32 integrally formed on opposite sides of the bottom surface of the planar plate 31. The planar plate 31 has multiple through holes 311 matching the number and distribution of the heat pipes 2. The fins 3 are inserted into the heat pipes 2 through these through holes 311, corresponding one-to-one with the heat pipes. Several fins 3 are vertically stacked on the heat pipes 2, and the side plates 32 of one fin abut against the top surface of the planar plate 31 of the next fin 3, creating a gap between the planar plates 31 of two adjacent fins. The side plates 32 are arranged in the same pattern. The spacing between two adjacent planar plates 31 is determined by the grid. The fins 3 are fixed to the heat pipe 2 by interference fit through the inner wall of the through hole 311 or by welding to the outer wall of the heat pipe 2 through the periphery of the through hole 311, so that the fins 3 are not easy to detach from the heat pipe 2. In this embodiment, the fins 3 are fixed to the heat pipe 2 by interference fit. A connecting plate 4 is also fixed on the base plate 1. The connecting plate 4 is threaded with screws. By attaching the base plate 1 to the heat source and threading the connecting plate 4 to the housing that fixes the heat source, the base plate 1 and the fins 3 are fixed as a whole. The heat source is in contact with the base plate 1, so that the heat generated by the heat source is transferred to the heat pipe 2 through the contact of the base plate 1. Then, the heat pipe 2 conducts heat quickly and the heat is released by each fin 3 to achieve the heat dissipation effect.

[0017] Reference Figure 1 and Figure 2To enhance the aesthetics of the radiator, a finned radiator is provided, including a top cover 5. The bottom surface of the top cover 5 has a recessed clearance groove 51, and at least two elastic strips 52 are provided on the bottom surface of the clearance groove 51. Each of the two elastic strips 52 has a first latching block 521 and a second latching block 522 on opposite sides. The first latching block 521 and the second latching block 522 are arranged vertically along the length of the elastic strip 52, and the thickness of both the first latching block 521 and the second latching block 522 is less than the distance between the two planar fins 31. The top surface of the first latching block 521 is a horizontal plane 5211, and the bottom surface is an upward-sloping first inclined plane 5212. The top surface of the second latching block 522 is a downward-sloping second inclined plane 5221. The bottom surface of the second fastener 522 is an upwardly inclined third inclined surface 5222, and the distance between the top surface of the first fastener 521 and the uppermost edge of the top surface of the second fastener 522 matches the distance between the bottom surface of a planar plate 31 and the bottom surface of an adjacent planar plate 31. Each planar plate 31 of a fin 3 is provided with at least one set of two symmetrically spaced insertion holes 312. The insertion holes 312 are arranged in a square shape, and when several fins 3 are inserted onto the heat pipe 2, the insertion holes 312 of each fin 3 are aligned. The distance between the two opposite side walls of the two elastic strips 52 is slightly greater than the distance between the inner wall surfaces of the two insertion holes 312 on the planar plate 31. Align the two elastic strips 52 with the two insertion holes 312 respectively, and press down the top cover 5 to make The elastic strip 52 is inserted into the insertion hole 312. During this process, the third inclined surface 5222 of the second fastening block 522 and the first inclined surface 5212 of the first fastening block 521 are pressed by the edge of the insertion hole of the fin 3, causing the elastic strip 52 to undergo elastic deformation. The two elastic strips 52 deflect in opposite directions. The length from the opening edge of the top cover 5's clearance groove 51 to the top surface of the first fastening block 521 is set to be an integer multiple of the length from the top surface of one planar plate 31 to the bottom surface of the next planar plate 31. This ensures that when the bottom edge of the top cover 5's opening abuts against the top surface of the uppermost fin 3, the first fastening block 521 and the second fastening block 522 move to the space between two adjacent planar plates 31, and the elastic strip 52 rebounds to achieve the first... The top surface of a first clip 521 abuts against the bottom surface of a flat plate 31, and the top surface of a second clip 522 abuts against the bottom surface of a flat plate 31. The top cover 5 is installed by elastically pressing the fins 3 with the elastic strip 52. The top cover 5 covers the heat pipe 2 port, improving the aesthetics of the heat sink. Compared with fixing the top cover 5 to the fins 3 with screws, the elastic strip 52 is hidden in the relief groove of the top cover 5, making the outer surface of the top cover 5 without the slots for accommodating screws more aesthetically pleasing. The top cover 5 is installed by pressing down, which is simpler and more convenient than screwing. The top cover 5 can be set into various shapes based on the relief groove 51, and light strips and printed patterns can be set on it to increase the aesthetics of the top cover 5 and make the heat sink more beautiful overall.

[0018] Reference Figure 1 and Figure 2Furthermore, the two elastic strips 52 on the top cover 5 are arranged in two sets, and these two sets are arranged at intervals along the width direction of the top cover 5. Correspondingly, the two through holes 312 on the fin 3 are arranged in two sets, and these two sets are arranged at intervals along the width direction of the planar sheet 31, so that the fixing effect between the top cover 5 and the fin 3 is better.

[0019] Reference Figure 1 and Figure 2 Furthermore, both the top cover 5 and the elastic strip 52 are made of plastic and are integrated into one piece. Plastic is elastic, thus forming an elastic strip 52. The integrated design of the top cover 5 and the elastic strip 52 is also more aesthetically pleasing.

[0020] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A finned heat sink, comprising a base plate, heat pipes, fins, and a top cover, wherein the number of heat pipes is at least one and disposed on the base plate, and the number of fins is several and passes through the heat pipes and is fixed to the heat pipes, with the several fins arranged in a stacked manner along the length direction of the heat pipes, characterized in that: Each fin is provided with at least two insertion holes. When several fins are inserted onto the heat pipe, the insertion holes of several fins are aligned. The bottom surface of the top cover is provided with at least two elastic strips. A first fastening block and a second fastening block are provided on opposite sides of the two elastic strips. The first fastening block and the second fastening block are arranged vertically along the length of the elastic strip. The thickness of the first fastening block and the thickness of the second fastening block are both less than the distance between two adjacent fins. The top surface of the first fastening block is set as a horizontal plane and the bottom surface is a first inclined plane with an upward slope. The top surface of the second fastening block is a second inclined plane with a downward slope, and the bottom surface of the second fastening block is a third inclined plane with an upward slope. The top cover is located on the top surface of the uppermost fin and covers the port of the heat pipe. The two elastic strips are respectively aligned with the insertion holes of the fins and inserted into the insertion holes. The top surface of the first fastening block abuts against the bottom surface of a fin, and the top surface of the second fastening block abuts against the bottom surface of the next fin. The elastic strips elastically press against the inner wall of the insertion hole.

2. The finned radiator according to claim 1, characterized in that: Each of the fins is provided with a through hole, and the heat pipe is inserted through the through hole.

3. A finned radiator according to claim 2, characterized in that: The fins are fixed to the heat pipe via an interference fit through the inner wall of the through hole.

4. A finned radiator according to claim 2, characterized in that: The fins are welded and fixed to the outer wall of the heat pipe through the periphery of the through hole.

5. A finned radiator according to claim 1, characterized in that: The bottom of the top cover is recessed with a relief groove, the top of the heat pipe is hidden in the relief groove, and the elastic strip is provided on the bottom wall of the relief groove.

6. A finned radiator according to claim 1, characterized in that: The top cover and the elastic strip are both made of plastic and are integrated into one piece.

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