TW201524332A - Heat sink assembly - Google Patents

Abstract

A heat sink assembly comprises a plurality of heat sink fins arranged together. Each heat sink fin comprises a body and a flow-guiding wall. The body is quadrilateral and has an inlet edge. The flow-guiding wall is extended and bended from one edge of the body opposite to the inlet edge. The flow-guiding wall has an outlet edge far away from the body. There is an acute angle between the outlet edge and the inlet edge.

Description

Heat sink fin assembly

The present invention relates to a heat sink fin assembly, and more particularly to a heat sink fin assembly that winds out in an oblique direction.

In an electronic device, components such as a wind flow generator and a heat sink fin assembly are often used for heat dissipation. The airflow generator and the heat sink fin assembly are disposed in a housing of the electronic device. The housing of the electronic device has an opening. The heat sink fin assembly is disposed between the air flow generator and the opening of the housing. The wind generated by the airflow generator passes through the heat sink fin assembly and blows off the electronic device from the opening.

In order to avoid the need for the user to burn or the shape of the electronic device, the manufacturer will open the opening in the oblique direction of the housing. However, current heat sink fins are arranged in a vertical direction as a heat sink fin assembly. The air outlet of the heat sink fin assembly cannot be matched with the opening of the housing. In the case that the air outlet of the heat sink fin assembly does not match the opening of the housing, the air flow generated by the air flow generator is easily blocked, so that the heat dissipation efficiency of the air flow generator is lowered.

Due to the above problems, some manufacturers arrange the heat dissipation fins in the heat dissipation fin assembly in an inclined manner to match the inclined opening. However, the structure of the fins arranged obliquely is weak, and is easily damaged by an external force, which is also disadvantageous for the heat pipe to pass through, resulting in an increase in production restrictions.

In view of the above problems, the present invention provides a heat dissipating fin assembly that also has a slanted venting edge to match the slanted housing opening.

The invention discloses a heat dissipation fin assembly comprising a plurality of heat dissipation fins arranged in a line. Each of the heat dissipation fins includes a body and a flow guiding wall. The body is quadrilateral and has an air inlet. The deflector wall is bent from the body by opposite sides of the inlet side. The deflector wall has an air outlet edge away from the body, and the air outlet edge and the wind inlet edge have an acute angle.

The heat dissipating fin assembly according to the present invention can be bent and extended from the side of the body away from the wind inlet by the flow guiding wall, so that the wind flow flowing through the body is redirected by the guiding of the guiding wall. Since the air outlet edge and the air inlet edge have an acute angle, the angle of the air outlet edge can be matched with the inclined opening of the housing of the electronic device. The wind flow exiting the heat sink fin assembly from the venting edge can be directly blown toward the inclined opening of the housing of the electronic device along the inclined air outlet side. This can reduce the wind resistance of the wind flow, thereby improving the heat dissipation efficiency of the air flow generator. In addition, since the body of each of the heat dissipation fins can be disposed in the housing in a vertical direction such that the main structure of the heat dissipation fins is disposed in a vertical direction, only a part of the flow guiding walls are disposed in an oblique direction. Such a heat sink fin assembly can match the mechanical strength of the heat sink fin assembly while matching the inclined opening of the housing.

The above description of the present invention and the following description of the embodiments of the present invention are intended to illustrate and explain the spirit and principles of the invention.

1‧‧‧Electronic device

10, 20‧‧‧ Heat sink fin assembly

11, 21‧‧‧ Heat sink fins

111, 211‧‧‧ ontology

111a, 211a‧‧‧ top side

111b, 211b‧‧‧ bottom

1110, 2110‧‧‧ into the wind

112, 212‧‧ ‧ diversion wall

1120, 2120‧‧‧

113, 213‧‧‧ top wall

114, 214‧‧‧ bottom wall

12‧‧‧ housing

121‧‧‧ openings

13‧‧‧Airflow Generator

14‧‧‧heat pipe

FO‧‧‧air outlet

L‧‧‧ Straight line

RI‧‧‧ inlet

RO‧‧‧air outlet

Θ1, θ2‧‧‧ angle

FIG. 1 is a perspective view of an electronic device using a heat sink fin assembly according to an embodiment of the present invention.

FIG. 2A is a side view showing a semi-finished product of the heat dissipation fins of the heat dissipation fin assembly of FIG. 1.

FIG. 2B is a perspective view of the finished product of the heat sink fin of FIG. 2A.

FIG. 2C is a perspective view of the heat sink fin assembly of FIG. 1.

2D is a front view of the heat sink fin assembly of FIG. 2C.

FIG. 3A is a side view showing a semi-finished product of the heat dissipation fins of the heat dissipation fin assembly according to another embodiment of the present invention.

FIG. 3B is a perspective view of the finished product of the heat sink fin of FIG. 3A.

FIG. 3C is a perspective view of the heat sink fin assembly composed of the heat sink fin arrangement of FIG. 3B.

FIG. 3D is a front view of the heat sink fin assembly of FIG. 3C.

The detailed features and advantages of the present invention are set forth in the Detailed Description of the Detailed Description of the Detailed Description of the <RTIgt; The related objects and advantages of the present invention are readily understood by those of ordinary skill in the art. The following examples are intended to describe the present invention in further detail, but are not intended to limit the scope of the invention.

Please refer to FIG. 1 , which is a perspective view of an electronic device 1 using a heat sink fin assembly 10 according to an embodiment of the present invention. The electronic device 1 includes a housing 12. A wind flow generator 13, a heat pipe 14, and a heat sink fin assembly 10. The air flow generator 13, the heat pipe 14, and the heat dissipation fin assembly 10 are disposed in the casing 12. The housing 12 has a plurality of inclined openings 121, and the longitudinal direction of each opening 121 has an angle θ1 with the vertical straight line L. The air outlet RO of the heat dissipation fin assembly 10 faces the opening 121 of the housing 12. The air outlets FO of the air flow generator 13 and the air inlets RI of the heat radiation fin assembly 10 face each other. The heat pipe 14 passes through the heat sink fin assembly 10.

Please refer to FIGS. 2A, 2B, 2C and 2D, FIG. 2A is a side view of the semi-finished product of the heat sink fin 11 of the heat sink fin assembly 10 of FIG. 1 , and FIG. 2B is a heat sink fin 11 of FIG. 2A . FIG. 2C is a perspective view of the heat sink fin assembly 10 of FIG. 1 and FIG. 2D is a front view of the heat sink fin assembly 10 of FIG. 2C.

In the present embodiment, the heat dissipation fin assembly 10 includes a plurality of heat dissipation fins 11 arranged in a line. Each of the heat dissipation fins 11 includes a body 111 , a flow guiding wall 112 , a top wall 113 , and a bottom wall 114 . The body 111 is quadrangular and has an air inlet 1110 and a top edge 111a and a bottom edge 111b. The wind inlet 1110 is located between the top edge 111a and the bottom edge 111b. The length of the top edge 111a is less than the length of the bottom edge 111b. The flow guiding wall 112 is bent and extended from the body 111 by the opposite sides of the inlet side 1110. The flow guiding wall 112 has an air outlet 1120 away from the body 111. The length of the vent 1120 is substantially equal to the length of the incoming rim 1110. The shape of the flow guiding wall 112 is a triangle. The top wall 113 is connected to the top side 111a of the body 111. The bottom wall 114 is connected to the bottom side 111b of the body 111. In addition, the body 111 and the flow guiding wall 112 may be integrally formed, but not limited thereto.

As shown in FIG. 2A, in the semi-finished product of the heat dissipation fin 11, the body 111, the flow guiding wall 112, the top wall 113, and the bottom wall 114 can be located on the same plane. The manufacturer can bend the semi-finished product of the heat-dissipating fins 11 in FIG. 2A into the finished product of the heat-dissipating fins 11 of FIG. 2B along the broken line in FIG. 2A. Thereby, the deflector wall 112 is bent and extended from the side of the body 111 away from the wind inlet 1110. The straight line L is parallel to the wind inlet 1110. The angle θ1 between the air outlet 1120 of the deflector wall 112 and the straight line L is an acute angle, that is, the angle θ1 between the air outlet 1120 and the wind inlet 1110 is an acute angle. The angle θ2 between the deflector wall 112 and the body 111 ranges from 90 to 180 degrees. The top wall 113 is substantially perpendicular to the body 111. The bottom wall 114 is substantially perpendicular to the body 111. Next, the manufacturer can arrange the finished products of the heat dissipation fins 11 of FIG. 2B to form the heat dissipation fin assembly 10 as shown in FIGS. 2C and 2D.

As shown in FIG. 2D, the air inlets 1110 of the heat dissipation fins 11 form a vertical air inlet RI, and the air outlets 1120 of the heat dissipation fins 11 are inclined at an angle θ1. The tuyere RO is an opening 121 corresponding to the inclination of the casing 12 of the electronic device 1 in Fig. 1.

In this configuration, the air outlet 1120 of each of the heat dissipation fins 11 can be matched with the inclined opening 121 of the casing 12 of the electronic device 1, and the wind resistance of the airflow generated by the airflow generator 13 can be reduced, thereby increasing the airflow generation. The heat dissipation efficiency of the device 13. Furthermore, the body 111 of each of the heat dissipation fins 11 can be disposed in the housing 12 in a vertical direction such that the main structure of the heat dissipation fins 11 is disposed in a vertical direction, and only a part of the flow guiding walls 112 are disposed in an oblique direction. Thereby, the heat dissipation fin assembly 10 can maintain the heat dissipation fin assembly 10 while matching the inclined opening 121 of the housing 12. Mechanical strength.

Please refer to FIGS. 3A, 3B, 3C and 3D, FIG. 3A is a side view of a semi-finished product of the heat sink fin 21 of the heat sink fin assembly 20 according to another embodiment of the present invention, and FIG. 3B is a view of FIG. 3A. FIG. 3C is a perspective view of the heat sink fin assembly 20 of the heat sink fins 21, and FIG. 3D is a front view of the heat sink fin assembly 20 of FIG. 3C. .

In the embodiment, the heat dissipation fin assembly 20 includes a plurality of heat dissipation fins 21 arranged in a line. Each of the heat dissipation fins 21 includes a body 211 , a flow guiding wall 212 , a top wall 213 , and a bottom wall 214 . The body 211 has an air inlet 2110 and a corresponding top edge 211a and a bottom edge 211b. The wind inlet 2110 is located between the top edge 211a and the bottom edge 211b. The flow guiding wall 212 extends from a side of the body 211 away from the wind inlet 2110. The flow guiding wall 212 has an air outlet 2120 away from the body 211. The shape of the deflector wall 212 is triangular. The top wall 213 is connected to the top edge 211a of the body 211. The bottom wall 214 is connected to the bottom edge 211b of the body 211. Compared with the heat dissipating fins 11 shown in FIGS. 2A and 2B, the heat dissipating fins 21 of the present embodiment are different in that the length of the top side 211a is substantially equal to the length of the bottom side 211b. The length of the vent 2120 of the deflector wall 212 is substantially equal to the length of the rim 2110 of the body 211.

As shown in FIG. 3A, in the semi-finished product of the heat dissipation fins 21, the body 211, the flow guiding wall 212, the top wall 213, and the bottom wall 214 can be located on the same plane. The manufacturer can bend the semi-finished product of the heat-dissipating fin 21 in FIG. 3A into the finished product of the heat-dissipating fin 21 of FIG. 3B along the broken line in FIG. 3A. Thereby, the deflector wall 212 is bent and extended from a side of the body 211 away from the wind inlet 2110. Straight line L and air inlet edge 2110 Row. The angle θ1 between the air outlet 2120 of the deflector wall 212 and the straight line L is an acute angle, that is, the angle θ1 between the air outlet 2120 and the wind inlet 2110 is an acute angle. The angle θ2 between the deflector wall 212 and the body 211 ranges from 90 to 180 degrees. The top wall 213 is substantially perpendicular to the body 211. The bottom wall 214 is substantially perpendicular to the body 211. Next, the manufacturer can arrange the finished products of the heat dissipation fins 21 of FIG. 3B to form the heat dissipation fin assembly 20 as shown in FIGS. 3C and 3D.

As shown in FIG. 3D, the air inlet edges 2110 of the heat dissipation fins 21 form a vertical air inlet RI, and the air outlet edges 2120 of the heat dissipation fins 21 are inclined at an angle θ1. Air outlet RO. Therefore, the heat dissipation fin assembly 20 of the present embodiment can also correspond to the inclined opening 121 of the casing 12 of the electronic device 1 in FIG.

In summary, the heat sink fin assembly of the present invention can be bent and extended from the side of the body away from the wind inlet by the flow guiding wall, so that the wind flow flowing through the body is redirected by the guide wall to change direction. Since the air outlet edge and the air inlet edge have an acute angle, the angle of the air outlet edge can be matched with the inclined opening of the housing of the electronic device. The wind flow exiting the heat sink fin assembly from the venting edge can be directly blown toward the inclined opening of the housing of the electronic device along the inclined air outlet side. This can reduce the wind resistance of the wind flow, thereby improving the heat dissipation efficiency of the air flow generator. In addition, since the body of each of the heat dissipation fins can be disposed in the housing in a vertical direction such that the main structure of the heat dissipation fins is disposed in a vertical direction, only a part of the flow guiding walls are disposed in an oblique direction. Such a heat sink fin assembly can match the mechanical strength of the heat sink fin assembly while matching the inclined opening of the housing.

Although the present invention has been disclosed above in the foregoing embodiments, it is not intended to limit the invention. It is within the scope of the invention to be modified and modified without departing from the spirit and scope of the invention. Please refer to the attached patent application for the scope of protection defined by the present invention.

10‧‧‧Finishing fin assembly

11‧‧‧ Heat sink fins

111‧‧‧Ontology

111a‧‧‧ top side

111b‧‧‧Bottom

1110‧‧‧ into the wind

112‧‧‧Guide wall

1120‧‧‧Out of the wind

113‧‧‧ top wall

114‧‧‧ bottom wall

Θ2‧‧‧ angle

Claims (10)

A heat dissipating fin assembly includes a plurality of heat dissipating fins arranged in a row, each of the heat dissipating fins comprising: a body having a quadrangular shape and having an air inlet edge; and a flow guiding wall from the opposite sides of the air inlet side The body is bent and extended, and the flow guiding wall has an air outlet edge away from the body, and the air outlet edge and the air inlet edge have an acute angle. The heat sink fin assembly of claim 1, wherein the angle between the flow guiding wall and the body ranges from 90 to 180 degrees. The heat sink fin assembly of claim 1, wherein the body further has a top edge and a bottom edge, and the air inlet edge is located between the top edge and the bottom edge. The heat dissipation fin assembly of claim 3, wherein each of the heat dissipation fins further comprises a top wall and a bottom wall, the top wall being connected to the top edge of the body, the bottom wall and the bottom edge of the body Connected. The heat sink fin assembly of claim 4, wherein the top wall is substantially perpendicular to the body, the bottom wall being substantially perpendicular to the body. The heat sink fin assembly of claim 3, wherein the length of the top edge is less than the length of the bottom edge. The heat sink fin assembly of claim 6, wherein the length of the air outlet edge is substantially equal to the length of the air inlet edge. The heat sink fin assembly of claim 3, wherein the length of the top edge is substantially equal to the length of the bottom edge. The heat sink fin assembly of claim 8, wherein the length of the air outlet side is greater than the length of the air inlet side. The heat sink fin assembly of claim 1, wherein the flow guiding wall has a triangular shape.