Composite heat sink device

Abstract

The utility model discloses a kind of composite heat dissipation devices, comprising: heat dissipation fin unit, rotating part and fan unit, heat dissipation fin unit has a hollow part;Rotating part is set on hollow part top;Fan unit has a main shaft, and fan unit is connected in rotating part by main shaft;Wherein, heat source is transmitted to rotating part by hollow part through heat radiation mode and outward diffusion, and fan unit drives rotating part rotation by main shaft to discharge the heat received from composite heat dissipation device.

Description

Technical Field

[0001] This utility model relates to the field of heat dissipation technology, and in particular to a composite heat dissipation device. Background Technology

[0002] In existing technologies, heat sinks absorb heat energy from heat sources through heat dissipation fins via temperature difference conduction, and then dissipate heat from the heat dissipation fins via a fan. However, in actual use, it has been found that heat energy can be transferred not only through conduction but also through radiation. Therefore, the current method of dissipating heat energy solely through fan conduction is increasingly unable to meet the heat generated by the rapid growth of data volume and computing demands.

[0003] Therefore, how to effectively dissipate heat to ensure the operation and long lifespan of hardware has become a primary technical issue. Utility Model Content

[0004] The present invention provides a composite heat dissipation device to dissipate heat radiation and thus improve the heat dissipation effect.

[0005] An embodiment of this utility model discloses a composite heat dissipation device, comprising:

[0006] The heat dissipation fin unit has a hollow section;

[0007] A rotating component is disposed above the hollow portion;

[0008] A fan unit has a main shaft, and the fan unit is connected to the rotating component via the main shaft;

[0009] The heat emitted by the heat source diffuses outward through thermal radiation and is transferred to the rotating component through the hollow part. The fan unit drives the rotating component to rotate through the main shaft to dissipate the heat from the composite heat dissipation device.

[0010] The aforementioned composite heat dissipation device, wherein the heat dissipation fin unit comprises:

[0011] Base;

[0012] A connecting cylinder is mounted on the base, and the connecting cylinder has the hollow portion;

[0013] At least one heat dissipation fin is arranged at intervals around the connecting cylinder, and one end of the at least one heat dissipation fin is connected to the connecting cylinder.

[0014] The aforementioned composite heat dissipation device further includes a heat conduction cylinder mounted on the base and located within the connecting cylinder. The rotating component is positioned above the heat conduction cylinder. The heat conduction cylinder has a heat conduction channel. After absorbing heat from the heat source through thermal radiation, the heat conduction cylinder conducts the heat to the rotating component through the heat conduction channel.

[0015] The aforementioned composite heat dissipation device further includes an isolation component installed in the heat conduction cylinder and close to the rotating component. The heat generated by the heat source is conducted to the isolation component through the heat conduction channel in the form of thermal radiation, and then to the rotating component. The rotating component rotates to dissipate the heat generated by the heat source from the composite heat dissipation device.

[0016] The aforementioned composite heat dissipation device, wherein the fan unit includes:

[0017] A hub has a main shaft, one end of which is connected to the hub and the other end of which is connected to the rotating component. When the hub rotates, the rotating component is driven to rotate through the main shaft.

[0018] At least one fan blade is mounted on the hub, and the fan blade rotates synchronously with the hub.

[0019] The aforementioned composite heat dissipation device further includes a bracket disposed on at least one of the heat dissipation fins and located between the rotating member and the hub, wherein the other end of the main shaft passes through the bracket and is connected to the rotating member.

[0020] In the aforementioned composite heat dissipation device, the top surface of the rotating component has a connecting hole, the other end of the main shaft passes through the bracket and is connected to the connecting hole, and the bottom surface of the rotating component has an annular groove, which covers the top of the connecting cylinder and the heat conduction cylinder.

[0021] In the aforementioned composite heat dissipation device, the bottom surface of the rotating component further has a first protrusion, the first protrusion has a shaped surface, the shaped surface, the first protrusion and the annular groove form an absorption surface, and the heat conducted by the heat source in the form of thermal radiation is absorbed through the absorption surface.

[0022] In the aforementioned composite heat dissipation device, the top surface of the isolation member has a second protrusion, the bottom surface of the isolation member has an annular recess, and the heat generated by the heat source is conducted to the annular recess and the second protrusion by thermal radiation.

[0023] In the aforementioned composite heat dissipation device, the annular recess is located on the second protrusion.

[0024] According to the composite heat dissipation device of the above embodiment, the heat energy conducted by the fan is dissipated, while the rotation of the rotating part is used to throw out heat radiation, thereby improving the heat dissipation effect.

[0025] The above description of the present utility model and the following description of the embodiments are used to demonstrate and explain the principle of the present utility model, and to provide a further explanation of the scope of the patent application of the present utility model. Attached Figure Description

[0026] Figure 1 This is a perspective view of the composite heat dissipation device according to an embodiment of the present invention.

[0027] Figure 2 for Figure 1 A one-way exploded view.

[0028] Figure 3 for Figure 1 Another perspective of the exploded view.

[0029] Figure 4 for Figure 1 A sectional view.

[0030] Figure 5 for Figure 4 A partially enlarged schematic diagram of the heat dissipation fin unit within the dashed frame.

[0031] In the attached figures, the following labels are used:

[0032] Composite heat dissipation device: 1;

[0033] Heat dissipation fin units: 11;

[0034] Base: 111;

[0035] Connecting cylinder: 112;

[0036] Hollow section: 1121;

[0037] Heat dissipation fins: 113;

[0038] Rotating parts: 12;

[0039] Top surface: S121;

[0040] Connection hole: K;

[0041] Bottom surface: S122;

[0042] Annular groove: C1;

[0043] Gap: H1, H2, H3, H4;

[0044] First protrusion: T1;

[0045] Design surface: S1;

[0046] Absorption surface: A;

[0047] Fan units: 13;

[0048] Wheel size: 131;

[0049] Spindle: 1311;

[0050] Fan blades: 132;

[0051] Heat transfer tube: 14;

[0052] Heat conduction path: Tc;

[0053] Isolation components: 15;

[0054] Top surface: S151;

[0055] Second protrusion: T2;

[0056] Bottom surface: S152;

[0057] Annular recess: C2;

[0058] Stent: 16. Detailed Implementation

[0059] Please see Figures 1 to 5 . Figure 1 This is a perspective view of the composite heat dissipation device according to an embodiment of the present invention. Figure 2 for Figure 1 A one-way exploded view. Figure 3 for Figure 1 Another perspective of the exploded view. Figure 4 for Figure 1 A sectional view. Figure 5 for Figure 4 A partially enlarged schematic diagram of the heat dissipation fin unit within the dashed box. (See attached image.) Figures 1 to 5 As shown, a composite heat dissipation device 1 in this embodiment includes: a heat dissipation fin unit 11, a rotating member 12, and a fan unit 13. The heat dissipation fin unit 11 has a hollow portion 1121, and the rotating member 12 is disposed above the hollow portion 1121. The fan unit 13 has a main shaft 1312, and the fan unit 13 is connected to the rotating member 12 through the main shaft 1312. The heat emitted by the heat source diffuses outward through thermal radiation and is transferred to the rotating member 12 through the hollow portion 1121. The fan unit 13 drives the rotating member 12 to rotate through the main shaft 1312 to dissipate the heat from the composite heat dissipation device 1.

[0060] The heat dissipation fin unit 11 includes: a base 111, a connecting cylinder 112, and at least one heat dissipation fin 113. The connecting cylinder 112 is mounted on the base 111 and has the hollow portion 1121. At least one heat dissipation fin 113 is arranged at intervals around the connecting cylinder 112, and one end of the at least one heat dissipation fin 113 is connected to the connecting cylinder 112.

[0061] In one embodiment of this utility model, the rotating component 12 is made of a metal material that can transfer heat, such as copper, iron, aluminum, or composite plastic.

[0062] Furthermore, the composite heat dissipation device 1 also includes a heat conduction cylinder 14, which is mounted on the base 111 and located within the connecting cylinder 112. The rotating component 12 is positioned above the heat conduction cylinder 14. The heat conduction cylinder 14 has a heat conduction channel Tc. After absorbing heat from the heat source through thermal radiation, the heat conduction cylinder 14 conducts the heat to the rotating component 12 through the heat conduction channel Tc. Figure 4 The direction of the middle arrow indicates the direction of heat radiation conduction.

[0063] Furthermore, the composite heat dissipation device 1 also includes an isolation member 15, which is installed in the heat conduction cylinder 14 and close to the rotating member 12. The heat generated by the heat source is conducted to the isolation member 15 through the heat conduction channel Tc in the form of thermal radiation, and then to the rotating member 12. The rotating member 12 rotates to dissipate the heat generated by the heat source from the composite heat dissipation device 1.

[0064] In one embodiment of this utility model, the heat conduction cylinder 14 and the isolation member 15 are made of materials such as copper, iron, aluminum, and composite plastic, all of which are capable of heat transfer of metal materials. The materials of the heat conduction cylinder 14 and the isolation member 15 may be the same or different.

[0065] It should be noted that, in one embodiment of this utility model, the heat conduction cylinder 14 and the isolation member 15 are an integral part.

[0066] The fan unit 13 includes a hub 131 and at least one fan blade 132. The hub 131 has a main shaft 1311, one end of which is connected to the hub 131 and the other end of which is connected to the rotating member 132. When the hub 131 rotates, it drives the rotating member 12 to rotate through the main shaft 1311. At least one fan blade 132 is mounted on the hub 131 and rotates synchronously with the hub 131.

[0067] Furthermore, the composite heat dissipation device 1 also includes a bracket 16, which is disposed on at least one of the heat dissipation fins 132 and located between the rotating member 12 and the hub 131. The other end of the main shaft 1312 passes through the bracket 16 and is connected to the rotating member 12.

[0068] The rotating component 12 has a connecting hole K on its top surface S121. The other end of the main shaft 1312 passes through the bracket 16 and is connected to the connecting hole K. The rotating component 12 has an annular groove C1 on its bottom surface S122. The annular groove C1 covers the top of the connecting cylinder 112 and the heat conduction cylinder 14. In this embodiment, the tops of the connecting cylinder 112 and the heat conduction cylinder 14 are flush. The annular groove C1 has multiple gaps H1, H2, H3, and H4 between itself and the heat conduction cylinder 14, the heat dissipation fins 113, and the bracket 16 to ensure that the rotation of the rotating component 12 is free from interference.

[0069] Furthermore, the bottom surface S122 of the rotating member 12 also has a first boss T1, which has a shaping surface S1. In this embodiment, the shaping surface S1 is an arc surface. The arc surface, the first boss T1, and the annular groove C1 form an absorption surface A, which absorbs the heat conducted by the heat source in the form of thermal radiation. The top surface S151 of the insulating member 15 has a second boss T2, and the bottom surface S152 of the insulating member 15 has an annular recess C2. The heat generated by the heat source is conducted to the annular recess C2 and the second boss T2 in the form of thermal radiation. In this embodiment, the annular recess C2 is located opposite the second boss T2 so that the insulating member 15 has an M-shaped longitudinal section, but this invention is not limited thereto.

[0070] According to the composite heat dissipation device of the above embodiment, by adding a rotating component, which is combined with the fan blade to assist in heat dissipation, the heat dissipation value is improved.

[0071] Although the present invention has been disclosed above with reference to the foregoing embodiments, it is not intended to limit the present invention. Any person skilled in the art may make some modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of patent protection of the present invention shall be determined by the scope of protection of the appended claims.

Claims

1. A composite heat dissipation device, characterized in that, Include: The heat dissipation fin unit has a hollow section; A rotating component is disposed above the hollow portion; A fan unit has a main shaft, and the fan unit is connected to the rotating component via the main shaft; The heat emitted by the heat source diffuses outward through thermal radiation and is transferred to the rotating component through the hollow part. The fan unit drives the rotating component to rotate through the main shaft to dissipate the heat from the composite heat dissipation device.

2. The composite heat dissipation device as described in claim 1, characterized in that, The heat dissipation fin unit includes: Base; A connecting cylinder is mounted on the base, and the connecting cylinder has the hollow portion; At least one heat dissipation fin is arranged at intervals around the connecting cylinder, and one end of the at least one heat dissipation fin is connected to the connecting cylinder.

3. The composite heat dissipation device as described in claim 2, characterized in that, It also includes a heat conduction cylinder, which is mounted on the base and located in the connecting cylinder. The rotating component is located above the heat conduction cylinder. The heat conduction cylinder has a heat conduction channel. After absorbing the heat from the heat source by heat radiation, the heat conduction cylinder conducts the heat to the rotating component through the heat conduction channel.

4. The composite heat dissipation device as described in claim 3, characterized in that, It also includes an isolation element installed in the heat conduction cylinder and close to the rotating element. The heat generated by the heat source is conducted to the isolation element through the heat conduction channel in the form of thermal radiation, and then to the rotating element. The rotating element rotates to dissipate the heat generated by the heat source from the composite heat dissipation device.

5. The composite heat dissipation device as described in claim 4, characterized in that, The fan unit includes: A hub has a main shaft, one end of which is connected to the hub and the other end of which is connected to the rotating component. When the hub rotates, the rotating component is driven to rotate through the main shaft. At least one fan blade is mounted on the hub, and the fan blade rotates synchronously with the hub.

6. The composite heat dissipation device as described in claim 5, characterized in that, It also includes a bracket disposed on at least one of the heat dissipation fins and located between the rotating member and the hub, with the other end of the main shaft passing through the bracket and connected to the rotating member.

7. The composite heat dissipation device as described in claim 6, characterized in that, The top surface of the rotating component has a connecting hole, and the other end of the main shaft passes through the bracket and is connected to the connecting hole. The bottom surface of the rotating component has an annular groove, which covers the top of the connecting cylinder and the heat conduction cylinder.

8. The composite heat dissipation device as described in claim 7, characterized in that, The bottom surface of the rotating component also has a first boss portion, which has a shaping surface. The shaping surface, the first boss portion, and the annular groove form an absorption surface, through which the heat source conducts heat by thermal radiation.

9. The composite heat dissipation device as described in claim 5, characterized in that, The top surface of the insulating member has a second protrusion, and the bottom surface of the insulating member has an annular recess. The heat generated by the heat source is conducted to the annular recess and the second protrusion by thermal radiation.

10. The composite heat dissipation device as described in claim 9, characterized in that, The annular recess is located opposite the second protrusion.

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