CN213586757U

CN213586757U - Heat sink

Info

Publication number: CN213586757U
Application number: CN202022701297.8U
Authority: CN
Inventors: 陆嵩杰; 曹伟
Original assignee: Jiangsu Jieyuan Intelligent Manufacturing Co ltd
Current assignee: Jiangsu Jieyuan Intelligent Manufacturing Co ltd
Priority date: 2020-11-20
Filing date: 2020-11-20
Publication date: 2021-06-29
Anticipated expiration: 2030-11-20

Abstract

The application discloses a cooling fin, including radiating bottom plate and be fixed in a plurality of heat dissipation teeth on the radiating bottom plate, it is a plurality of heat dissipation tooth interval arrange in one side of radiating bottom plate, it is a plurality of the heat dissipation tooth is parallel to each other, with the radiating bottom plate is fixed with the face vertically of heat dissipation tooth is the reference surface, the heat dissipation tooth skew 5 ~ 10 degrees of reference surface. Through with 5 ~ 10 degrees of heat dissipation tooth skew reference surface for the heat dissipation tooth produces the slope, and when heat dissipation tooth height was certain, can increase the width of heat dissipation tooth, also increased the surface area of heat dissipation tooth promptly, improved the radiating efficiency of fin.

Description

Heat sink

Technical Field

The utility model relates to a heat abstractor field especially relates to a fin.

Background

The radiating fin has wide application, such as 5G base stations, mobile terminals and the like, and even in military manufacturing, the radiating fin is used for radiating heat.

The existing radiating efficiency of the radiating fin is limited, and how to further improve the radiating efficiency of the radiating fin is a key point of research.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned drawbacks and deficiencies of the prior art, it is desirable to provide a heat sink that improves heat dissipation efficiency.

In a first aspect, the present invention provides a heat sink, including a heat dissipating base plate and a plurality of heat dissipating teeth fixed on the heat dissipating base plate, a plurality of the heat dissipating teeth are arranged at intervals on one side of the heat dissipating base plate, a plurality of the heat dissipating teeth are parallel to each other, and the heat dissipating base plate is fixed with the perpendicular surface of the heat dissipating teeth is a reference surface, the heat dissipating teeth are offset from the reference surface by 5 to 10 degrees.

According to the technical scheme provided by the embodiment of the application, the heat dissipation teeth are enabled to incline by offsetting the heat dissipation teeth by 5-10 degrees from the reference surface, the width of the heat dissipation teeth can be increased when the height of the heat dissipation teeth is fixed, namely, the surface area of the heat dissipation teeth is increased, and the heat dissipation efficiency of the heat dissipation fins is improved.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

fig. 1 is a schematic structural diagram of a heat sink according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a heat sink according to another embodiment of the present invention;

fig. 3 is a schematic structural view of a heat dissipation tooth of a heat dissipation plate according to another embodiment of the present invention;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

fig. 5 is a sectional view taken along line B-B of fig. 3.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

One of the embodiments of the present invention is, please refer to fig. 1 and 2, a heat sink, including heat-dissipating bottom plate 10 and a plurality of heat-dissipating teeth 20 fixed on heat-dissipating bottom plate 10, a plurality of heat-dissipating teeth 20 are arranged at intervals on one side of heat-dissipating bottom plate 10, a plurality of heat-dissipating teeth 20 are parallel to each other, the plane vertical that is fixed with heat-dissipating teeth 20 with heat-dissipating bottom plate 10 is the reference plane, heat-dissipating teeth 20 skew reference plane 5 ~ 10 degrees.

The utility model discloses an in the embodiment, the fin includes radiating bottom plate and heat dissipation tooth, and radiating part is hugged closely to radiating bottom plate, can be at radiating bottom plate and wait to fill the silicone grease between the radiating part, increase radiating bottom plate and wait the area of contact between the radiating part, heat-conduction with higher speed. The radiating fins are fixed with the radiating bottom plate, the radiating fins diffuse heat on the radiating bottom plate into air, and the heat in the air is blown away by the fan, so that the radiating purpose is achieved. The area of the heat dissipation teeth affects the efficiency of the heat dissipation teeth to diffuse heat into the air, and further affects the heat dissipation efficiency of the heat dissipation fins. In the prior art, the heat dissipation teeth are perpendicular to the heat dissipation bottom plate. And this application will dispel the heat the tooth skew reference surface 5 ~ 10 degrees, also will dispel the heat tooth slope promptly, under the same condition of heat dissipation tooth height, can improve the width of heat dissipation tooth, improved the surface area of heat dissipation tooth, improved the radiating efficiency of heat dissipation tooth, also promptly improved the radiating efficiency of fin. Meanwhile, the heat dissipation teeth are deviated from the reference surface by 5-10 degrees, so that the influence on the overall strength of the heat dissipation fin can be reduced, and the reliability of the heat dissipation fin is ensured.

Another embodiment of the present invention is, referring to fig. 1, further, the heat dissipation teeth 20 are arranged as a straight plate.

The utility model discloses an in the embodiment, the heat dissipation tooth is the extension board, is convenient for carry out manufacturing to the heat dissipation tooth, has reduced the production manufacturing cost of heat dissipation tooth.

Another embodiment of the present invention is, referring to fig. 2, further, the heat dissipation teeth 20 are configured as a curved plate.

The utility model discloses an in the embodiment, the heat dissipation tooth is the curved plate, and the curved plate can further increase the surface area of heat dissipation tooth, further improves the radiating efficiency of heat dissipation tooth, also is exactly the radiating efficiency of further improvement fin.

Referring to fig. 2, further, the heat dissipation tooth 20 includes a first bent portion 21 and a second bent portion 22, and a bending direction of the first bent portion 21 is opposite to a bending direction of the second bent portion 22.

The utility model discloses an in the embodiment, the crooked opposite direction of first flexion and second flexion when increasing the surface area of heat dissipation tooth, can guarantee the intensity of heat dissipation tooth, has guaranteed the reliability of heat dissipation tooth.

Referring to fig. 3 to 5, further, heat dissipation tooth 20 includes first vortex portion 23 and second vortex portion 24 that the interval set up, and first vortex portion 23 and second vortex portion 24 are arranged along the length direction of heat dissipation tooth 20, and first vortex portion 23 includes a plurality of first vortex recesses 25, and second vortex portion 24 includes a plurality of first vortex archs 27.

The utility model discloses an in the embodiment, when the fan ventilates the heat dissipation tooth, the air flows through from the clearance between the heat dissipation tooth to take away the heat that the heat dissipation tooth diffused in the air, reach radiating purpose. Through first vortex portion and the second vortex portion that set up at the heat dissipation tooth interval, when the air flows through first vortex portion and second vortex portion, can produce along the ascending motion of heat dissipation tooth row cloth side, the air flow direction has been disturbed, avoid appearing being located the air in the middle of, unable air with heat dissipation tooth surface direct contact, can only absorb the condition of few part of heats, the efficiency of the heat diffusion air on the heat dissipation tooth has been improved, and simultaneously, also can carry out make full use of to the air, the radiating efficiency of fin has been improved. First vortex portion includes a plurality of first vortex recesses, and when the air passes through first vortex recess, can be to first vortex recess internal motion, and second vortex portion includes a plurality of first vortex archs, when the air passes through first vortex arch, can be to the bellied protruding direction motion of first vortex. First vortex portion and second vortex portion interval set up, can carry out abundant vortex to the air of the heat dissipation tooth of flowing through.

Further, the first spoiler portion 23 includes a plurality of second spoiler protrusions 26, the second spoiler portion 24 includes a plurality of second spoiler grooves 28, a distance between the first spoiler groove 25 and the heat dissipation base plate 10 is equal to a distance between the first spoiler protrusion 27 and the heat dissipation base plate 10, and a distance between the second spoiler groove 28 and the heat dissipation base plate 10 is equal to a distance between the second spoiler protrusion 26 and the heat dissipation base plate 10.

The utility model discloses an in the embodiment, first vortex portion includes that a plurality of second vortices are protruding, and first vortex recess and second vortex are protruding to be arranged along the width direction of heat dissipation tooth, when the first vortex portion of air current flow, can produce certain rotation, carries out abundant vortex to the air of flow through heat dissipation tooth. The second vortex portion includes a plurality of second vortex recesses, and second vortex recess and first vortex are protruding to be arranged along the width direction of heat dissipation tooth, when the air flows through second vortex portion, can produce certain rotation, carry out abundant vortex to the air through heat dissipation tooth.

Further, in any two adjacent heat dissipation teeth 20, the first spoiler portion 23 on one heat dissipation tooth 20 faces the second spoiler portion 24 on the other heat dissipation tooth 20.

The embodiment of the utility model provides an in, arbitrary two adjacent heat dissipation teeth, the first vortex portion on one heat dissipation tooth is just to the second vortex portion on another heat dissipation tooth, and when the heat dissipation tooth was dispelled to the air current, one side of air was the first vortex portion of a heat dissipation tooth, and the opposite side is the second vortex portion of another heat dissipation tooth, and the air can produce certain rotation, carries out abundant vortex to the air of heat dissipation tooth through the heat dissipation, improves the radiating efficiency of fin.

Further, the heights of the plurality of heat dissipation teeth 20 are all equal.

The utility model discloses an in the embodiment, the high homoenergetic of a plurality of heat dissipation teeth equals, is convenient for process manufacturing to the heat dissipation tooth, has reduced the die sinking cost, has reduced the manufacturing degree of difficulty.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be understood by those skilled in the art that the scope of the present invention is not limited to the specific combination of the above-mentioned features, but also covers other embodiments formed by any combination of the above-mentioned features or their equivalents without departing from the spirit of the present invention. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims

1. A radiating fin comprises a radiating bottom plate and a plurality of radiating teeth fixed on the radiating bottom plate, wherein the radiating teeth are distributed on one side of the radiating bottom plate at intervals, the radiating fin is characterized in that the radiating teeth are parallel to each other, a reference surface is vertical to a surface where the radiating teeth are fixed on the radiating bottom plate, and the radiating teeth are deviated from the reference surface by 5-10 degrees.

2. A heat sink as recited in claim 1, wherein the heat sink teeth are provided as straight plates.

3. A heat sink as recited in claim 1, wherein the heat dissipating teeth are configured as curved plates.

4. A heat sink as recited in claim 3, wherein the heat sink teeth include a first curved portion and a second curved portion, the first curved portion having a curved direction opposite the curved direction of the second curved portion.

5. The heat sink as claimed in claim 1, wherein the heat dissipating teeth include a first turbulence portion and a second turbulence portion disposed at an interval, the first turbulence portion and the second turbulence portion are arranged along a length direction of the heat dissipating teeth, the first turbulence portion includes a plurality of first turbulence grooves, and the second turbulence portion includes a plurality of first turbulence protrusions.

6. The heat sink as claimed in claim 5, wherein the first spoiler portion comprises a plurality of second spoiler protrusions, the second spoiler portion comprises a plurality of second spoiler grooves, the distance between the first spoiler groove and the heat dissipating base plate is equal to the distance between the first spoiler protrusion and the heat dissipating base plate, and the distance between the second spoiler groove and the heat dissipating base plate is equal to the distance between the second spoiler protrusion and the heat dissipating base plate.

7. The heat sink as recited in claim 5, wherein the first turbulating portion of one of the heat dissipating teeth faces the second turbulating portion of the other heat dissipating tooth.

8. The heat sink as recited in claim 1, wherein the plurality of heat sink teeth are all equal in height.