CN210781912U

CN210781912U - Fin radiating fin with spiral structure

Info

Publication number: CN210781912U
Application number: CN201921950915.3U
Authority: CN
Inventors: 莫仁乐; 张野
Original assignee: Daojing Shanghai Information Technology Co Ltd
Current assignee: Daojing Shanghai Information Technology Co Ltd
Priority date: 2019-11-13
Filing date: 2019-11-13
Publication date: 2020-06-16
Anticipated expiration: 2029-11-13

Abstract

The fin radiating fin with the spiral structure comprises a bottom plate, wherein a mounting structure for mounting an electronic element is arranged on the lower surface of the bottom plate, a plurality of fins are vertically distributed on the upper surface of the bottom plate, the fins are formed by spirally curling a plate-shaped structure, the area of an opening at the upper end of each fin is smaller than that of an opening at the lower end of each fin, and the curling surface of each fin inclines towards the axis direction of a spiral inner ring. This is novel through the improvement to fin structure and ventilation structure, can make the fin have siphon effect's drainage function, thermal diffusion with higher speed, can accept blowing in of natural wind or fan wind in a plurality of directions simultaneously, can effectively strengthen the radiating effect of fin.

Description

Fin radiating fin with spiral structure

Technical Field

This novel electronic component fin technical field that belongs to, concretely relates to helical structure's fin.

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. Therefore, whether the heat dissipation area of the heat dissipation fins is large enough and the ventilation effect of the ventilation channel is good enough can be seen, and the key of whether the fin heat dissipation fins can achieve good heat dissipation effect is provided.

However, in the prior art, the fins of the fin heat sink are mostly plate-shaped structures, and the fins themselves can only increase the heat dissipation area, so the design concept is limited to this, and a technical scheme of improving the heat dissipation effect by using the structural improvement of the fins itself is still lacking.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model discloses a fin cooling fin with a spiral structure, wherein, the fin not only has the effect of increasing the heat dissipation area, but also can utilize the siphon effect to promote the air circulation to form, thereby further accelerating the heat dissipation.

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

a fin radiating fin with a spiral structure comprises a bottom plate, wherein a mounting structure for mounting an electronic element is arranged on the lower surface of the bottom plate, a plurality of fins are vertically distributed on the upper surface of the bottom plate, the fins are formed by spirally curling a plate-shaped structure, the area of an opening at the upper end of each fin is smaller than that of an opening at the lower end of each fin, and the curling surface of each fin inclines towards the axis direction of a spiral inner ring.

Preferably, an airflow slot is formed between the side edge of the free end of the outer ring of the spiral winding structure of the fin and the adjacent fin winding surface, a blocking piece is arranged at the upper part of the airflow slot, one side edge of the blocking piece is fixedly connected with the side edge of the free end, the other side edge of the blocking piece is fixedly connected with the adjacent fin winding surface of the free end of the outer ring, and the airflow slot below the blocking piece forms an air inlet.

Preferably, the fins are distributed in a matrix, and each column of fins keeps a uniform distance and forms an inter-column ventilation channel, and each row of fins also keeps a uniform distance and forms an inter-row ventilation channel.

Preferably, the thickness of the bottom plate at the bottom end of the fin is smaller than that of the bottom plate at the periphery of the fin.

Preferably, the fins are made of metal materials, and the surface of each fin is coated with a nano carbon material layer.

Preferably, the fins are made of an aluminum alloy material.

This novel helical structure's fin's beneficial effect does: this is novel through the improvement to fin structure and ventilation structure, can make the fin have siphon effect's drainage function, thermal diffusion with higher speed, can accept blowing in of natural wind or fan wind in a plurality of directions simultaneously, can effectively strengthen the radiating effect of fin.

Drawings

FIG. 1: the novel three-dimensional structure is schematically shown;

FIG. 2: the novel overlook structure schematic diagram;

FIG. 3: the structure of the novel fin is schematic;

FIG. 4: the novel thin plate is schematically distributed;

1: bottom plate, 2: mounting hole, 3: fin, 4: a baffle plate, 5: air inlet, 6: free end, 7: curled surface, 8: a plate region.

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.

Example 1:

as shown in fig. 1, a fin heat sink with a spiral structure comprises a base plate 1, wherein a mounting structure for mounting an electronic element is arranged on the lower surface of the base plate 1, a plurality of fins 3 are vertically distributed on the upper surface of the base plate 1, the fins 3 are formed by spirally curling a plate-shaped structure, the area of an opening at the upper end of each fin 3 is smaller than that of an opening at the lower end, and a curled surface 7 of each fin 3 inclines towards the axial direction of a spiral inner ring;

as shown in fig. 2, the fins 3 are distributed in a matrix, and a uniform distance is maintained between each row of fins 3 and forms an inter-row ventilation channel, and a uniform distance is also maintained between each row of fins 3 and forms an inter-row ventilation channel.

In the design of the heat sink, the fins are densely arranged, which can increase the heat dissipation area, but the heat dissipation efficiency is reduced due to the unfavorable ventilation, thereby causing damage to the electronic component.

As shown in fig. 2, the ventilation channels of the fin 3 in this embodiment include inter-row ventilation channels, inter-column ventilation channels, and a plurality of ventilation channels in oblique directions, natural wind or fan wind can pass through the inter-row ventilation channels, inter-column ventilation channels, and oblique ventilation channels, thereby avoiding the wind blocking phenomenon caused by the overlong or uneven arrangement of the fins in the prior art (the design of the prior art limits that wind can only blow in a fixed direction and can enter the fin group, so that wind in directions other than these directions cannot accelerate the heat dissipation of the fins inside), and thus accelerating the heat dissipation efficiency;

furthermore, due to the characteristic of the arc-shaped structure of the curled surface 7 of the fin 3, natural wind or fan wind can easily pass through the curved curled surface, and compared with the fin with a cube-shaped plate-shaped structure in the prior art, the fin is more beneficial to ventilation, so that the heat dissipation is further accelerated;

further, as can be seen from fig. 2, the fin 3 with the spiral structure has a large heat dissipation area, so that heat can be better dissipated.

Example 2:

the embodiment is a further improvement on the basis of embodiment 1, and specifically includes:

as shown in fig. 1 and 3, an airflow slit is formed between a side edge of a free end 6 of an outer ring of the spiral-shaped coiled structure of the fin 3 and an adjacent curled surface 7, a blocking piece 4 is arranged at the upper part of the airflow slit, one side edge of the blocking piece 4 is fixedly connected with the side edge of the free end 6, the other side edge of the blocking piece 4 is fixedly connected with the curled surface 7 adjacent to the free end of the outer ring, and the airflow slit below the blocking piece 4 forms an air inlet 5.

The fins in the prior art are mostly of a cubic plate-shaped structure, and the structure characteristics of the fins cannot play a role in drainage except increasing the heat dissipation area.

As shown in fig. 3, since the area of the top end of the fin 3 is smaller than that of the bottom end, the air at the bottom is heated by the heat transferred from the bottom plate 1 at the bottom of the fin 3, and the hot air rises upward, and since the cross-sectional area of the top end of the fin 3 is reduced, the flow velocity of the hot air at the top end is increased, and insufficient air is supplied from the air inlet 5, thereby forming a siphon effect. The siphon effect can continuously guide external hot air to enter the fins 3 from the air inlet 5 and quickly gush out from the upper ends of the fins 3, so that airflow circulation on the surface of the radiating fin is formed, the hot air can be quickly led out, and the radiating efficiency is improved.

The fins of the cubic plate-shaped structure in the prior art do not have a drainage function, so the hot air rises completely by the power of the hot air, the rising rate and the height of the hot air are not higher than those of the novel fin with a siphon effect, as shown in fig. 1, the hot air of the radiating fins rises to bring cold air at the bottom to make up, and therefore the radiating fins and the external environment can exchange heat better.

Example 3:

on the basis of embodiment 2, the present embodiment makes further improvements, specifically:

as shown in fig. 4, the thickness of the bottom plate 1 at the bottom end of the fin 3 is smaller than the thickness of the bottom plate 1 at the periphery of the fin 3;

the fin 3 is made of metal material, and a nano carbon material layer is coated on the surface of the fin 3;

the fin 3 is made of an aluminum alloy material.

As shown in fig. 4, the thin plate region 8 is a bottom plate where the bottom ends of the fins 3 are located, and the thickness of the bottom plate 1 is smaller than that of the bottom plate 1 at the periphery, so that the heat conduction of the thin plate region 8 is faster, the rising speed of the hot air flow inside the fins 3 is faster, and the siphon effect is enhanced due to the larger negative pressure generated inside the fins 3 relative to the outside, which is beneficial to further improving the heat dissipation efficiency.

Claims

1. A fin heat sink of spiral structure, comprising a base plate, the lower surface of which is provided with a mounting structure for mounting an electronic component, characterized in that: the upper surface of the bottom plate is vertically distributed with a plurality of fins, the fins are formed by spirally curling a plate-shaped structure, the area of an opening at the upper end of each fin is smaller than that of an opening at the lower end of each fin, and the curling surface of each fin inclines towards the axis direction of the spiral inner ring.

2. A fin heat sink of spiral structure as claimed in claim 1, wherein: an airflow seam is formed between the side edge of the free end of the outer ring of the spiral curling structure of the fins and the adjacent fin curling surface, a blocking piece is arranged at the upper part of the airflow seam, one side edge of the blocking piece is fixedly connected with the side edge of the free end, the other side edge of the blocking piece is fixedly connected with the fin curling surface adjacent to the free end of the outer ring, and the airflow seam below the blocking piece forms an air inlet.

3. The fin heat sink of any one of the spiral structures as claimed in claims 1 and 2, wherein: the fins are distributed in a matrix, uniform distance is kept between every two rows of fins, and ventilation channels between every two rows are formed.

4. A fin heat sink of spiral structure as claimed in claim 3, wherein: the thickness of the bottom plate at the bottom end of the fin is smaller than that of the bottom plate at the periphery of the fin.

5. The fin heat sink of any one of the spiral structures as claimed in claims 1, 2 and 4, wherein: the fin is made of metal material, and the surface of the fin is coated with a nano carbon material layer.

6. A fin heat sink of spiral configuration as claimed in claim 5, wherein: the fins are made of aluminum alloy materials.