TWM654936U - Heat sink fin structure that accelerates heat transfer - Google Patents

Abstract

The invention provides a heat dissipation fin structure that can accelerate heat transfer, which at least includes an upper plate, a lower plate, a fin unit and at least three grooves; the upper plate is a plate with a suitable shape and thickness; the shape of the lower plate corresponds to the shape of the upper plate, and is used to be assembled on the upper plate to form a shell, so that there is a containing chamber between the upper plate and the lower plate; the fin unit is arranged in the containing chamber, and its two sides correspond to the upper plate and the lower plate, respectively. The upper plate body and the lower plate body are used to be attached to the upper plate body and the lower plate body respectively; the fin unit is formed by a plurality of long strips arranged at intervals, so that the shell has a plurality of channels penetrating the two sides of the shell; the middle part of the shell is provided with at least three grooves arranged at intervals and penetrating the two sides of the shell in the transverse direction of each channel, and each groove can create an induced flow effect to bring in surrounding cold air into each channel to achieve better heat dissipation efficiency.

Description

Heat sink fin structure that accelerates heat transfer

This invention is related to a heat dissipation structure, in particular to a heat dissipation fin structure that can accelerate heat transfer.

A commonly used heat sink fin structure mainly includes a plate body and a plurality of fins arranged at intervals on one side of the plate body. The other side of the plate body is used to abut a heat sink unit such as a temperature equalizer or a water cooling head. Alternatively, the other side of the plate body has a portion of a protrusion for conveniently abutting a heat source such as a central processing unit or an electronic component of an integrated circuit. The plate body transfers heat energy to each of the fins to accelerate the heat dissipation effect. Furthermore, a fan is provided to blow a wind flow of the fan toward each of the fins to further accelerate the heat dissipation effect.

Please refer to FIG. 5 for another commonly used heat dissipation fin structure. In order to better concentrate/guide the airflow of the fan to blow toward each fin, it mainly includes an upper plate 91, a lower plate 92 and a plurality of long strip fins 93. The upper plate 91 and the lower plate 92 are combined with each other to form a shell having a chamber. The plurality of fins 93 are arranged at intervals in the chamber so that the chamber has a plurality of channels 931 connected to the outside. The airflow of the fan blows toward one end of each channel 931 and concentrates/guides the airflow into each channel 931 to achieve a better heat dissipation effect. However, how to further improve the existing structure to further enhance the heat dissipation efficiency is a problem that the industry urgently needs to work on.

The main purpose of this invention is to provide a heat sink fin structure that can accelerate heat conduction and has better heat dissipation efficiency.

Therefore, in order to achieve the above-mentioned purpose, the invention provides a heat dissipation fin structure that can accelerate heat transfer, which at least includes an upper plate, a lower plate, a fin unit and at least three grooves; the upper plate is a plate with an appropriate shape and thickness; the shape of the lower plate corresponds to the shape of the upper plate, and is used to be assembled on the upper plate to form a shell, so that there is a containing room between the upper plate and the lower plate; the fin unit is arranged in the containing room, and its two The sides correspond to the upper plate and the lower plate respectively and are used to be attached to the upper plate and the lower plate respectively; the fin unit is formed by a plurality of strips arranged at intervals, so that the shell has a plurality of channels penetrating the two sides of the shell; the middle part of the shell is provided with at least three grooves arranged at intervals and penetrating the two sides of the shell in the transverse direction of each channel, and each groove can create an induced flow effect to bring the surrounding cold air into each channel to achieve better heat dissipation efficiency.

Below, we will cite one of the preferred embodiments of this invention and provide a further detailed description with diagrams as follows:

Please refer to FIG. 1 to FIG. 4 , the heat sink fin structure for accelerating heat transfer disclosed in the present invention at least includes an upper plate 12 , a lower plate 14 , a fin unit 16 and at least three grooves 18 .

The upper plate 12 is a plate with a suitable shape and thickness. Its shape can be a polygon such as a quadrilateral or a pentagon, and its material can be a metal material such as copper or aluminum.

The lower plate 14 is a plate with a suitable thickness. The shape or outer edge shape of the lower plate 14 corresponds to the shape or outer edge shape of the upper plate 12, and is used to be assembled on the upper plate 12 to form a housing 11, so that a containing chamber 13 is provided between the upper plate 12 and the lower plate 14. The outer side of the lower plate 14 is used to abut a heat dissipation unit 15 such as a temperature equalizing plate or a water cooling head. The outer side of the lower plate 14 has a portion of a protrusion for conveniently abutting a heat source (not shown) such as a central processing unit or an electronic component of an integrated circuit. The material of the lower plate 14 can be set to a metal material such as copper or aluminum.

The fin unit 16 is disposed in the accommodation chamber 13 , and its two sides correspond to the inner side surface of the upper plate 12 and the inner side surface of the lower plate 14 respectively, so as to be attached to the upper plate 12 and the lower plate 14 respectively.

The fin unit 16 is formed by a plurality of strips 62 arranged at intervals or in parallel, so that the shell 11 has a plurality of channels 621 penetrating both sides of the shell 11. The material of each strip 62 can be set to a metal material such as copper or aluminum.

The middle section of the housing 11 is provided with at least three grooves 18 arranged at intervals or arranged in parallel at intervals and passing through both sides of the housing 11 in the transverse direction or in the direction transverse to each of the channels 621 .

In the invention, the housing 11 is designed with a plurality of channels 621 and grooves 18 transverse to the channels 621 . When a wind flow from a fan enters and flows out of the channels 621 , the grooves 18 create an ejection flow effect to bring in ambient cold air into the channels 621 , thereby achieving better heat dissipation efficiency.

The heat sink fin structure disclosed in the above invention can accelerate heat transfer, wherein the number of the grooves 18 is an odd number, so as to avoid the situation where an even number of the grooves 18 is more likely to cause airflow resonance and generate louder noise.

91: Upper plate 92: Lower plate 93: Fins 931: Channel 12: Upper plate 14: Lower plate 16: Fin unit 18: Groove 11: Shell 13: Accommodation chamber 15: Heat dissipation unit 62: Strip body 621: Channel

Figure 1 is a three-dimensional diagram of a preferred embodiment of the present invention. Figure 2 is a cross-sectional view of Figure 1 in the direction 2-2. Figure 3 is a cross-sectional view of Figure 1 in the direction 3-3. Figure 4 is an enlarged schematic diagram of the A area of Figure 3. Figure 5 is a three-dimensional diagram of a conventional heat sink fin structure.

12: Upper plate

14: Lower plate

16: Fin unit

18: Groove

11: Shell

13: Accommodation room

15: Heat dissipation unit

62: Long strip

621: Channel

Claims (7)

A heat sink fin structure capable of accelerating heat transfer comprises at least: An upper plate body, which is a plate body with a suitable shape and thickness; A lower plate body, which is a plate body with a suitable thickness, the shape of the lower plate body corresponds to the shape of the upper plate body, and is used to be assembled on the upper plate body to form a shell body, so that there is a storage chamber between the upper plate body and the lower plate body; A fin unit, which is arranged in the storage chamber, and its two sides correspond to the upper plate body and the lower plate body respectively and are used to be attached to the upper plate body and the lower plate body respectively; Wherein, the fin unit is formed by a plurality of spaced-apart long strips, so that the shell body has a plurality of channels penetrating the two sides of the shell body; The middle section of the shell is provided with at least three grooves arranged at intervals in the transverse direction of each channel and penetrating through both sides of the shell. A heat sink fin structure capable of accelerating heat transfer as described in claim 1, wherein each of the long strips is parallel to each other. A heat sink fin structure capable of accelerating heat transfer as described in claim 1, wherein each of the grooves is parallel to each other. A heat sink fin structure capable of accelerating heat transfer as described in claim 2, wherein each of the grooves is parallel to each other. A heat sink fin structure capable of accelerating heat transfer as described in any one of claims 1 to 4, wherein each of the grooves is transverse to the direction of each of the channels. A heat sink fin structure capable of accelerating heat transfer as described in any one of claims 1 to 4, wherein the number of each groove is an odd number. A heat sink fin structure capable of accelerating heat transfer as described in claim 5, wherein the number of each groove is an odd number.

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