CN201336791Y - Radiator - Google Patents

Abstract

The utility model relates to a radiator, which comprises a base contacted with an element to be radiated, and a plurality of radiating plates fixed with the base together. The radiating plates radiate slantingly and unwards from the base of the radiator, and are gradually retracted from top to bottom. The radiator is provided with retract type radiating plates, thereby improving the radiating efficiency and reducing the weight of the radiator.

Description

heat sink

technical field

The utility model relates to a cooling device, in particular to a cooling device with light weight and high cooling efficiency.

Background technique

With the continuous improvement of the output power and operating frequency of electronic components such as central processing units, the corresponding heat generated by them has also increased significantly. If the heat generated is not removed in time, it will cause heat accumulation and cause temperature rise, which will seriously affect electronic components. of normal operation. For this reason, the industry usually installs a heat sink on the surface of these heat-generating electronic components for auxiliary heat dissipation, and at the same time installs a fan on the heat sink to enhance the heat dissipation effect. The traditional heat sink includes several heat dissipation fins arranged parallel to the heat sink base, so it has a relatively large weight and low heat dissipation efficiency.

Contents of the invention

In view of the above, it is necessary to provide a heat sink with light weight and high heat dissipation efficiency.

A radiator comprising a base in thermal contact with the element to be dissipated, and a number of fins fixed to the base. The fins radiate obliquely upward from the base of the radiator and gradually converge from top to bottom. Shape.

A heat dissipation device, comprising a heat sink and a heat dissipation fan for supplying air to the heat sink, the heat sink includes a base in thermal contact with an element to be dissipated, and a plurality of heat sinks fixed together with the base, the The radiator fins radiate obliquely upward from the radiator base, and gradually converge from top to bottom.

Compared with the prior art, the heat dissipation device of the utility model adopts a heat sink provided with retractable heat dissipation fins, which improves heat dissipation efficiency and reduces the weight of the heat sink.

Description of drawings

FIG. 1 is an exploded perspective view of a preferred embodiment of the heat sink of the present invention.

FIG. 2 is a three-dimensional assembly view of FIG. 1 .

Detailed ways

Please refer to FIG. 1 , the heat dissipation device of the present invention includes a radiator 10 and a fan 20 fixed on the radiator 10 .

The heat sink 10 includes a base 11 , and a plurality of cooling fins 12 are disposed on the upper surface of the base 11 . The lower surface of the base 11 can be in contact with an element to be dissipated (such as a central processing unit) on a computer motherboard, and the heat generated by the element to be dissipated is transmitted to the heat sink 12 through the base 11 . These cooling fins 12 radiate obliquely upward from the base 11 of the radiator 10 , and gradually converge from top to bottom. The middle of these cooling fins 12 encloses a conical space, the top of which is the air inlet of the radiator 10 . Two air guide fins 13 are arranged behind each heat sink 12 of the outer layer, and an air guide port 14 is formed between the adjacent two air guide fins 13 between the two heat sink fins 12 of the adjacent outer layer, and the air from the air inlet The wind flows out through the air guide opening 14 after passing through the cooling fins.

Please also refer to FIG. 2 , the fan 20 is circular and located at the air inlet of the radiator 10 . In a preferred embodiment of the present utility model, the fan 20 is fixed on the radiator 10 by bonding or screwing. Both the cooling fins 12 and the air guiding fins 13 are integrally formed on the base 11 of the radiator 10 .

The cooling fins 12 are gradually gathered from top to bottom to form a frustum-shaped space that is conducive to air flow movement. When the fan 20 at the air inlet of the radiator 10 rotates at a high speed, the air flow passes through the drawing effect of the cooling fins 12 to make the air flow In the process of flowing through the heat sink 12, the flow velocity gradually increases, and reaches the maximum speed when reaching the upper surface of the base 11 of the radiator 10, so that a relatively large impact airflow can be generated on the heat-intensive base 11 of the radiator 10, which can efficiently The temperature of the components to be dissipated is reduced, and the heat dissipation efficiency is greatly improved. Since the heat sink 10 is designed to be folded and the heat sink 12 and the air guide fin 13 are integrally formed on the base 11 , it is beneficial to reduce the weight of the heat sink 10 .

The heat dissipation device of the utility model adopts a heat sink provided with retractable heat sinks, which improves heat dissipation efficiency and reduces the weight of the heat sink. The heat sink 12 and the air guide fin 13 can be formed non-integrally with the base 11 of the heat sink 10 , which is fixed to the base 11 of the radiator 10 as a single component, constituting the body of the radiator 10 .

Claims (9)

1. radiator, comprise one with the base for the treatment of the heat dissipation element thermo-contact, and the fin that is fixed together of some and described base, it is characterized in that: described fin gives off obliquely from foot of radiator, and is the form of gathering gradually from top to bottom.

2. radiator as claimed in claim 1 is characterized in that: the centre of described fin surrounds a space that is truncated cone-shaped, and its top is the air inlet of radiator.

3. radiator as claimed in claim 2, it is characterized in that: be provided with two guide vanes after being positioned at outer field each fin, form an air guide hole between adjacent two guide vanes between adjacent skin two fin, from the distinguished and admirable fin of flowing through of described air inlet after flow out by described air guide hole.

4. radiator as claimed in claim 3 is characterized in that: described fin and guide vane are on the base that is integrally formed in radiator.

5. heat abstractor, comprise radiator and give the radiator fan of described radiator air-supply, described radiator comprise one with treat the base of heat dissipation element thermo-contact, reach the fin that some and described base is fixed together, it is characterized in that: described fin gives off obliquely from foot of radiator, and be gradually the form of drawing in from top to bottom, and the centre of described fin surrounds a space that is truncated cone-shaped, and its top is the air inlet of radiator.

6. heat abstractor as claimed in claim 5, it is characterized in that: be provided with two guide vanes after being positioned at outer field each fin, form an air guide hole between adjacent two guide vanes between adjacent skin two fin, from the distinguished and admirable fin of flowing through of described air inlet after flow out by described air guide hole.

7. heat abstractor as claimed in claim 6 is characterized in that: described radiator fan is rounded and be positioned at the air inlet position.

8. heat abstractor as claimed in claim 6 is characterized in that: described fan is fixed on the described radiator in mode bonding or that screw fixes.

9. heat abstractor as claimed in claim 6 is characterized in that: described fin and guide vane are on the base that is integrally formed in radiator.

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