CN212544401U - Cavity fin radiating fin with air pipe - Google Patents

Abstract

The utility model provides a take cavity fin of tuber pipe, relates to electronic component fin technical field, comprising a base plate, the bottom plate lower surface be equipped with the mounting structure who is used for installing electronic component, it has a plurality of fins to distribute at the upper surface vertical of bottom plate, the bottom of fin and the upper surface fixed connection of bottom plate, be equipped with the cavity inside the fin, the cavity through pierce through under fin bottom and the bottom plate gas pocket A of terminal surface and electronic component's heat dissipation district intercommunication, the fin be rectangular shape, there is the tuber pipe at the top of fin still integrated into one piece, the tuber pipe through the gas pocket B intercommunication of evenly distributed in the connecting portion of tuber pipe and fin, gas pocket A along the length direction evenly distributed of fin. This is novel through seting up the cavity inside the fin, multiplicable electronic component's direct heat conduction area through setting up the tuber pipe, can make and form the air current circulation in the tuber pipe, promotes inside and outside gaseous heat exchange, through setting up the chute, can make the air current exchange in the tuber pipe with higher speed, improves the radiating efficiency.

Description

Cavity fin radiating fin with air pipe

Technical Field

This novel electronic component fin technical field that belongs to, concretely relates to cavity fin of electrified tuber pipe.

Background

When the electronic element works, part of electric energy is converted into heat energy. If the electronic element works in a high-temperature environment and does not have good heat dissipation, the efficiency of the electronic element is reduced, and the service life of the electronic element is shortened.

At present, the heat dissipation of electronic products mainly depends on heat dissipation fins, wherein the fin heat dissipation fins are mainly in a heat dissipation fin form, and the working principle of the heat dissipation fins is that the heat dissipation area is enlarged through the fins, and the heat conduction speed is improved through arranging a ventilation channel.

However, the conventional fin heat sink has a drawback of low heat dissipation efficiency due to limitations of design considerations.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model discloses a cavity fin radiating fin with an air pipe, wherein the radiating fin is provided with a plurality of fins with cavity structures, the cavity structures are communicated with radiating areas of electronic elements through air holes, the air pipe is arranged at the top of each fin, and the radiating performance can be obviously improved.

In order to realize the purpose, the novel technical scheme is as follows:

the utility model provides a take cavity fin of tuber pipe, includes the bottom plate, bottom plate lower surface be equipped with the mounting structure who is used for installing electronic component, it has a plurality of fins to distribute at the upper surface vertical of bottom plate, the bottom of fin and the upper surface fixed connection of bottom plate, be equipped with the cavity inside the fin, the cavity through pierce through under fin bottom and the bottom plate gas pocket A of terminal surface and electronic component's heat dissipation district intercommunication, the fin be rectangular shape, there is the tuber pipe on the top of fin still integrated into one piece, the tuber pipe communicate through evenly distributed in the gas pocket B of the connecting portion of tuber pipe and fin, gas pocket A along the length direction evenly distributed of fin.

Preferably, the inner diameter of the air duct gradually increases from one end to the other end.

Preferably, the lower end face of the bottom plate positioned on the opposite side of the fins is provided with a strip-shaped chute matched with the bottom end of the fins in shape, the depth of the bottom of the chute becomes deeper gradually from one end to the other end, and the deepest end is positioned on the side facing the large inner diameter opening of the air pipe.

Preferably, the fins are uniformly distributed on the upper surface of the bottom plate in a matrix shape.

Preferably, the lower port of the air hole A is also provided with a metal filter screen for filtering dust.

Preferably, the air hole a is opposite to the air hole B.

Preferably, the outer surfaces of the fins are all provided with raised grains.

Preferably, the outer surface of the fin is coated with a nano carbon material.

This novel cavity fin's of taking tuber pipe beneficial effect does:

1. the cavity is formed in the fin, so that the direct heat conduction area of the electronic element can be increased, and the heat dissipation efficiency is improved;

2. through the arrangement of the air pipe, airflow circulation can be formed in the air pipe, so that the exchange of internal and external air is promoted, the outflow of hot air in the heat dissipation area of the electronic element is driven, and the heat dissipation is promoted;

3. through setting up the chute, can make the air current exchange in the tuber pipe accelerate, improve the radiating efficiency.

Drawings

FIG. 1: the front structure of the novel device is shown schematically;

FIG. 2: the local structure of the novel part A is enlarged;

FIG. 3: the top view of the novel device;

1: bottom plate, 2: mounting hole, 3: chute, 4: fin, 5: cavity, 6: air hole a, 7: air duct, 8: and air holes B.

Detailed Description

The following description is of the preferred embodiment of the present invention only, and is not intended to limit the scope of the present invention, which is to be accorded the widest scope consistent with the principles and spirit of the present invention.

As shown in fig. 1, 2, and 3:

a cavity fin radiating fin with an air pipe comprises a bottom plate 1, wherein a mounting structure for mounting an electronic element is arranged on the lower surface of the bottom plate 1, a plurality of fins 4 are vertically distributed on the upper surface of the bottom plate 1, the bottom ends of the fins 4 are fixedly connected with the upper surface of the bottom plate 1, a cavity 5 is arranged inside the fins 1, the cavity 5 is communicated with a radiating area of the electronic element through air holes A6 penetrating through the bottom ends of the fins 4 and the lower end surface of the bottom plate 1, the fins 4 are in a strip shape, the top ends of the fins 4 are also integrally formed with air pipes 7, the air pipes 7 are communicated through air holes B8 uniformly distributed on connecting parts of the air pipes 7 and the fins 4, and the air holes A6 are uniformly distributed along the length direction of the fins 4;

the inner diameter of the air pipe 7 is gradually increased from one end to the other end;

the lower end face of the bottom plate 1, which is positioned on the opposite side of the fins 4, is provided with a strip-shaped chute 3 matched with the bottom end of the fins 4 in shape, the depth of the bottom of the chute 3 gradually becomes deeper from one end to the other end, and the deepest end is positioned on one side facing the large-inner-diameter opening of the air pipe 7;

the fins 4 are uniformly distributed on the upper surface of the bottom plate 1 in a matrix shape;

the lower port of the air hole A6 is also provided with a metal filter screen for filtering dust;

the air hole A6 is arranged opposite to the air hole B8;

the outer surfaces of the fins 4 are all provided with wave grains;

the outer surface of the fin 4 is coated with a nano carbon material.

This neotype theory of use:

the fins in the prior art are usually fixed on the outer surface of the base plate 1, the heat conducted from the base plate 1 is conducted through heat conduction to perform secondary conduction heat dissipation, the cavity 5 is directly formed in the fin 4, the cavity 5 is directly communicated with the heat dissipation area of the electronic element through the air hole A6, and therefore the fin 4 is changed from secondary conduction heat into heat conduction from the heat dissipation area of the electronic element directly, the heat dissipation area of direct heat conduction is increased, and the heat dissipation efficiency is improved.

Further, this is novel to be equipped with tuber pipe 7 at fin 4 top, tuber pipe 7's internal diameter is from one end grow gradually to the other end, and the terminal surface still is equipped with chute 3 under fin 4 relative bottom plate 1, chute 3's degree of depth also becomes dark gradually from one end to the other end, deepest is located towards tuber pipe 7 big internal diameter open-ended one side, when actual heat dissipation, because chute 3 leads to the thickness of bottom plate 1 of fin bottom to become thin gradually from one end to the other end, thereby make the radiating efficiency of thin department be higher than the radiating efficiency of thick department, make cavity 5's temperature also rise gradually from one end to the other end, lead to the one end temperature of big bore in the tuber pipe 7 higher, atmospheric pressure step-down, make the tuber pipe content easily produce the air current and flow, it improves to drive radiating efficiency through the.

Furthermore, the air holes a6 and the air holes B8 are arranged oppositely, so that heat in a heat dissipation area of the electronic component can more easily enter the air duct 7 through the shortest path, obviously, the air holes a6 on the side with the relatively deeper chute 3 have a short stroke, and the inner diameter of the corresponding air duct 7 is large, so that the speed of air heat exchange is obviously higher than that of the side with the relatively shallower chute 3, and from this point, the air flow speed in the air duct 7 is also improved, and because the inner diameter of one end of the air duct 7 is small and the inner diameter of the other end is large, an air siphon effect is easily formed, and the heat dissipation efficiency is further improved.

Claims (8)

1. A cavity fin radiating fin with an air pipe is characterized in that: the novel LED lamp comprises a base plate, the bottom plate lower surface be equipped with the mounting structure who is used for installing electronic component, it has a plurality of fins to distribute at the upper surface vertical of bottom plate, the bottom of fin and the upper surface fixed connection of bottom plate, be equipped with the cavity inside the fin, the cavity through pierce through under fin bottom and the bottom plate gas pocket A of terminal surface and electronic component's heat dissipation district intercommunication, the fin be rectangular shape, there is the tuber pipe on the top of fin still integrated into one piece, the tuber pipe communicate through evenly distributed in the gas pocket B of the connecting portion of tuber pipe and fin, gas pocket A along the length direction evenly distributed of fin.

2. The cavity fin heat sink with air duct of claim 1, wherein: the inner diameter of the air pipe is gradually increased from one end to the other end.

3. The cavity fin heat sink with air duct of claim 2, wherein: the lower end face of the bottom plate positioned on the opposite side of the fins is provided with a strip-shaped chute matched with the bottom end of the fins in shape, the depth of the bottom of the chute becomes deeper gradually from one end to the other end, and the deepest end is positioned on one side facing the large inner diameter opening of the air pipe.

4. The cavity fin heat sink with air duct of any one of claims 1 to 3, wherein: the fins are uniformly distributed on the upper surface of the bottom plate in a matrix shape.

5. The cavity fin heat sink with air duct of any one of claims 1 to 3, wherein: and a metal filter screen for filtering dust is arranged at the lower port of the air hole A.

6. The cavity fin heat sink with air duct of any one of claims 1 to 3, wherein: the air hole A and the air hole B are oppositely arranged.

7. The cavity fin heat sink with air duct of any one of claims 1 to 3, wherein: the outer surfaces of the fins are all provided with wavy grains.

8. The cavity fin heat sink with air duct of claim 7, wherein: the outer surface of the fin is coated with a nano carbon material.

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