Heat pipe heat dissipation assembly and heat dissipation device having the same

Abstract

The utility model discloses a heat pipe radiating assembly and radiating device with it, wherein, the heat pipe radiating assembly, including U type pipe, radiating fin and radiating fan, U type pipe includes two condensing sections and the evaporation section connected between two condensing sections, two condensing sections with evaporation section intercommunication, every condensing section is equipped with a plurality of radiating fin, and a plurality of radiating fins are sequentially spaced apart along the axis direction of condensing section, and radiating fan is arranged between two condensing sections, to blow out the heat of radiating fin and condensing section outward through the active heat dissipation mode. According to the heat pipe radiating assembly and radiating device with it of the utility model, realize the high compactness of structure and the optimization of radiating efficiency, make it can conveniently be applied to cold and hot cup small -sized product.

Claims

1. A heat pipe heat dissipation assembly, characterized in that, include: U-shaped tube; The U-shaped tube includes two condensing sections and an evaporating section connected between the two condensing sections, and the two condensing sections are in communication with the evaporating section; The heat dissipation fins are provided on each of the condensation sections, and the multiple heat dissipation fins are arranged sequentially at intervals along the axial direction of the condensation section. A cooling fan is provided between the two condensation sections to actively dissipate heat from the heat dissipation fins and the condensation sections.

2. The heat pipe heat dissipation assembly according to claim 1, characterized in that, It also includes a heat-conducting plate, with the evaporation section in contact with the heat-conducting plate to absorb heat from the heat source on the heat-conducting plate.

3. The heat pipe heat dissipation assembly according to claim 1, characterized in that, There are two U-shaped tubes, which are arranged opposite each other and spaced apart; In the two U-shaped tubes, the heat dissipation fins on one U-shaped tube and the heat dissipation fins on the same side and opposite to each other on the other U-shaped tube are formed into an integral structure; Each heat dissipation fin on the two condensation sections on the same side of the two U-shaped tubes forms a fin unit. The cooling fan is located between the two fin units, and the air outlet direction of the cooling fan is from one fin unit to the other fin unit.

4. The heat pipe heat dissipation assembly according to claim 2, characterized in that, The heat-conducting plate has a receiving portion adapted to the heat pipe; at least a portion of the heat pipe is housed in the receiving portion to contact the heat-conducting plate.

5. The heat pipe heat dissipation assembly according to claim 4, characterized in that, The receiving portion is a groove provided on the surface of the heat-conducting plate, or the receiving portion is a through hole extending from one end of the receiving portion to the other end.

6. A heat dissipation device, characterized in that, include: The heat pipe cooling assembly as described in any one of claims 1 to 5; A heat sink is fitted over the heat pipe heat dissipation assembly.

7. The heat dissipation device according to claim 6, characterized in that, The heat dissipation cylinder includes multiple annular sleeves, which are sequentially sleeved and fixed relative to each other along the axis; an annular heat dissipation cavity is formed at the sleeve joint of two adjacent annular sleeves, the annular heat dissipation cavity communicates with the interior of the annular sleeve, and the annular heat dissipation cavity has a downward-facing annular convection port.

8. The heat dissipation device according to claim 7, characterized in that, Each of the annular heat dissipation cavities has multiple notches on its outer side wall. The multiple notches are arranged at intervals along the circumference of the annular heat dissipation cavity, and each notch communicates with the annular convection port.

9. The heat dissipation device according to claim 7, characterized in that, Each of the annular sleeves has a conical outer wall located below the adjacent annular convection port, and the conical outer wall is configured to extend outward at an angle from top to bottom.

10. The heat dissipation device according to claim 7, characterized in that, The heat sink also includes fasteners, and the inner wall of the annular sleeve is provided with a plurality of positioning posts, the plurality of positioning posts being spaced apart along the circumference of the annular sleeve, and each positioning post having a first through hole passing through the positioning post along the axis of the annular sleeve. The corresponding positioning pins in two adjacent annular sleeves are inserted into each other along the axial direction of the annular sleeves, and the fasteners pass through the first through holes on each positioning pin in sequence to fix each annular sleeve relative to each other.

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