KR200454183Y1 - Heat sink with radially arranged radiation fins - Google Patents

Abstract

The present invention relates to a heat sink, the tubular base (1) having a plurality of longitudinal channels (11) provided parallel to the outer periphery; And a plurality of radial pins (2) provided around the tubular base (1), wherein the tubular base (1) extends along the side of the channel (11) and protrudes from the outer edge. A rib 12 is formed, and the radial pin 2 has a square bottom portion 21 and is inserted into the channel 11 and fixed to the first rib 12.

According to the present invention, the combination of the tubular base and the radial pin is eco-friendly because it does not use welding and bonding techniques, unlike the prior art, and it can be used for a long time because the deformation of the tubular base or the radial pin does not occur, and it can be produced in large quantities. This is reduced.

Heat Sink, Radial Fins, Heat Source, Electronics

Description

Heat Sinks with Radial Fins {HEAT SINK WITH RADIALLY ARRANGED RADIATION FINS}

The present invention relates to a heat sink, and more particularly, to a heat sink having radial fins for discharging waste heat from a CPU, LED or other heat source, and having a tubular base having a plurality of longitudinal channels 11 provided parallel to the periphery. One); And a plurality of radial pins 2 provided around the tubular base 1, wherein the tubular base 1 extends along the channel side and protrudes from the outer edge. ), The radial pin (2) has a square base (21) and is inserted into the channel (11) and is fixed to the first rib (12).

The heat sink having a radial fin according to the prior art is a structure having a radial fin coupled to the outer edge of the tubular base, the tubular base may be made of a circular tube, a square tube or a tube of various types. Since the heat sink according to the prior art has a structure in which the radial fin and the tubular base are coupled, it is not easy to manufacture the heat sink and a large manufacturing cost is required. In addition, the heat sink of such a structure is heavy and inefficient in heat dissipation. Therefore, this structure of heat sink is not practical.

The known heat sink is a structure in which the radial fin is joined to the outer edge of the tubular base by welding. It is not environmentally friendly to use welding techniques that couple radial pins to the tubular base.

In addition, the heat sink according to the prior art is a structure having a tubular base portion is provided around the outer edge to form a radial fin. After inserting the radial pin into the channel of the tubular base, the outer edge of the tubular base must be pressed to secure the radial pin and deformation can be made. If the base of the radial pin is not fully inserted into the bottom of the channel, or when deforming the outer edge of the tubular base by pressing the two opposite sidewalls of each channel in two opposite sides of the radial pin, unexpected vibrations may occur. If this occurs, the radial pin can be separated. If this problem occurs, the radial pin will not protrude or be firmly fixed.

In order to solve the problem of the heat sink according to the prior art described above, the present invention is to provide a heat sink having a radial fin that can firmly couple and fix the radial fin to the tubular base.

Heat sink provided with a radial fin according to the present invention includes a plurality of radial fins provided around the tubular base and the tubular base. The tubular base includes a plurality of longitudinal channels provided in parallel with the outer edge of the tubular base and a plurality of first ribs protruding from the outer edge, the first ribs extending along one side of each channel. . The radial pin also has a square base. The square base of the radial pin is inserted into the channel of the tubular base and is fixed by the first rib pressed after the radial pin is inserted into the channel of the tubular base. The square base of the radial pin is inserted into the channel of the tubular base and is coupled to the bottom of each channel. The radial pin is therefore fixed to the tubular base and retained after the first rib of the tubular base is pressed.

The tubular base also has a plurality of second ribs protruding from the outer edge and the second ribs extend along opposite sides of each channel facing the first ribs to support the radial pins according to the deformation of the first ribs. .

The radial pin is also made of a thin metal sheet and has an inner end that is curved and folded to form a square base. The radial pin also has an outer end that is folded to form an outer obtuse end facing the square base of each radial pin. In addition, the square bottom portion of the radial pin may be formed at 90 °, acute angle or obtuse angle.

The tubular base may also be a solid or hollow tube having an annular or square cross section or various other structures. For example, the tubular base may be manufactured in a U tube shape.

The tubular base may also be fabricated by rolling and injection to form the desired channel and the first and second ribs are formed on the outer edge. The tubular base can be formed in large quantities to reduce manufacturing costs.

According to the heat sink having a radial pin that can firmly couple and fix the radial pin to the tubular base according to the present invention described above, the combination of the tubular base and the radial pin does not use welding and bonding techniques, unlike the prior art. Therefore, it is environmentally friendly and can be used for a long time without deformation of the tubular base or radial pins, and can be produced in large quantities, thereby reducing manufacturing costs.

Hereinafter, in order to be described in detail so that those skilled in the art can easily implement the present invention, the most preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. . Other objects, features, and operational advantages, including the object, operation, and effect of the present invention, will become more apparent from the description of the preferred embodiment.

As can be seen in Figures 1 and 2, the heat sink having a radial fin according to the first embodiment of the present invention includes a tubular base (1) and a plurality of radial fins (2). The tubular base 1 has a longitudinal axis 11 formed parallel to the periphery of the periphery and the first rib 12 protrudes from the periphery and the first rib extends along one side of each channel 11.

The radial pin 2 has a square base that can be inserted into the channel 11 of the tubular base 1 (see FIG. 3).

During the manufacturing process of the heat sink, the square base 21 of the radial fin 2 is inserted into the channel 11 of the tubular base 1 and the pressing mold 3 is used and the first rib of the tubular base 1 is used. The first rib 12 is deformed and the deformed first rib 12 is pressed into the channel 11 of the tubular base 1 so as to be coupled with the square base of the radial pin 2. When the radial pins 2 are assembled, the radial pins 2 are firmly coupled to and retained on the tubular base 1 (see Fig. 1).

The radial pin 2 is made of a thin metal sheet and has an inner end that is bent and folded to form a square base 21, and an outer end that is folded to form an outer obtuse end 22. The folded structure of the square bottom portion 21 is combined with the first rib 12. The folded structure of the outer obtuse end portion 22 can prevent the unexpected cut.

5 to 7 show a heat sink of a second embodiment according to the present invention. According to the second embodiment of the present invention, the tubular base 1 has a first rib 12 protruding from the outer edge and the first rib 12 extends along one side of the channel 11. And the second rib protrudes from the outer edge and extends along the other side of the channel 11 (see FIG. 8 or 9). After insertion of the radial pin 2 into the channel 11 of the tubular base 1 and secured by the first rib 12, the second rib 13 provides support to the radial pin 2, Secure the radial pin (2). The radial pin 2 is firmly fixed to the outer edge of the tubular base 1 without vibration.

In a second embodiment according to the present invention, one or more supports 23 are coupled to the upper or lower radial pins 2 to fix the radial pins 2 and to hold the radial pins 2 at equal intervals. Can be.

According to the first and second embodiments of the present invention, the tubular base 1 has an annular end. In an embodiment the tubular base 1 may be manufactured to have a rectangular, trapezoidal, elliptical, rhombic cross section or various structures. The tubular base 1 may be made of a U-shaped tube (see FIG. 11), and a mounting hole 141 is formed at the bottom to provide a fixing device for coupling the tubular base 1 to an electronic device or a heat source. do. In an embodiment the tubular base 1 may be formed of a solid tube (see Figure 12) or a hollow tube.

13 to 15 show different shapes of the square bottom portions of the radial pins 2. The square bottom portion 21 of the radial pin 2 may be 90 °, larger than 90 °, or smaller than 90 °. As a result, the base of the channel 11 of the tubular base 1 can be formed at the angle of the square base 21 of the radial pin 2. Also, the radial pin 2 may have a thicker wall thickness (see FIGS. 13 to 15).

After insertion of the angular base of the radial pin 2 into the channel 11 of the tubular base 1, the first rib 12 is pressed and engaged with the angular base 21 of the radial pin 2. The radial pins 2 are supported by the two ribs 13.

As described above, the tubular base 1 may be made of a hollow tube or a solid tube of a desired structure and size. The tubular base 1 may be formed by a rolling or injection device to have a channel 11, a first rib 12, and a second rib 13, which may be formed on the outer edge. The formation of the tubular base 1 can be produced in large quantities to reduce manufacturing costs.

In conclusion, the coupling structure between the tubular base and the radial fin in the heat sink according to the present invention and its features are completely different from the heat sinks according to the prior art. In particular, the radial pin according to the present invention can be inserted into the lower side of the channel of the tubular base and can be firmly fixed. After the fixing of the radial pin to the tubular base, the radial pin is maintained without vibration.

The heat sink according to the present invention is configured as shown in Figs. 1 to 15, and its features are flexibly provided.

For reference, the specific embodiments of the present invention are only presented by selecting the most preferred embodiments to help those skilled in the art from the various possible examples, the technical spirit of the present invention is not necessarily limited or limited only by this embodiment. In addition, various changes, additions, and changes are possible within the scope of the technical spirit of the present invention, as well as other equivalent embodiments.

1 is a perspective view of a first embodiment of a heat sink having a radial fin according to the present invention,

Figure 2 is an exploded perspective view of Figure 1,

Figure 3 is an enlarged view of the spin pin shown in Figure 1,

4 is an enlarged view of the first rib shown in FIG. 3;

5 is a perspective view of a second embodiment of a heat sink with radial fins according to the present invention;

FIG. 6 is a bottom view shown in FIG. 5;

7 is an exploded perspective view of FIG. 5;

Figure 8 is a perspective view of the square base of the spinneret inserted into the channel of the tubular base according to the present invention,

9 is an enlarged view of a portion of FIG. 8;

FIG. 10 is an enlarged view of the plurality of first ribs shown in FIG. 9;

11 is a cross-sectional view of the tubular base manufactured in the form of a U tube according to the present invention,

12 is a cross-sectional view of the tubular base manufactured in the form of a solid tube according to the present invention,

Figure 13 is an enlarged view of the base of the square made of 90 ° of the spin pin according to the present invention,

14 is an enlarged view of a square bottom part manufactured at an acute angle of the spin pin according to the present invention;

Figure 15 is an enlarged view of the square bottom portion produced by the obtuse angle of the spin pin according to the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

1 ... tubular base 11 ... channel

12 ... first rib 13 ... second rib

2 ... radial pin 22 ... outer obtuse end

23 ... support

141 ... mounting holes

Claims (14)

In the heat sink, A tubular base (1) having a plurality of longitudinal channels (11) provided parallel to the outer edge; And Includes; a plurality of radial pins (2) provided in the periphery of the tubular base (1), The tubular base 1 includes a plurality of first ribs 12 extending along the side of the channel 11 and protruding from the outer edge and a plurality of second ribs 13 protruding from the outer edge and the second The rib 13 extends along the opposite side of the channel 11 facing the first rib 12, The radial fin (2) has a square base (21) and is inserted into the channel (11), characterized in that fixed to the first rib (12). The method of claim 1, The radial fin (2) is made of a thin metal sheet and has a heat sink, characterized in that the inner end is folded to bend to form the square base. The method of claim 2, The radial fin (2) has a heat sink, characterized in that it has an outer end that is folded to form an outer obtuse end (22) facing the square base. delete The method of claim 1, Heat sink characterized in that it further comprises a support (23) fixedly coupled to the upper and lower portions of the spinning pin (2). The method of claim 1, The tubular base (1) is a heat sink, characterized in that the circular or elliptical tube shape. The method of claim 1, The tubular base (1) is a heat sink, characterized in that the rectangular, trapezoidal or rhombic tube. The method of claim 1, The tubular base (1) is a heat sink, characterized in that the U-shaped tube. The method of claim 8, The tubular base (1) is a heat sink, characterized in that a plurality of mounting holes (141) formed on the lower side closed. The method of claim 1, The tubular base (1) is characterized in that the heat sink is formed of a solid tube. The method of claim 1, The tubular base (1) is a heat sink, characterized in that formed of a hollow tube. The method of claim 1, The square bottom portion 21 of the radial fin is characterized in that formed 90 °. The method of claim 1, The square base 21 of the radial fin is a heat sink, characterized in that formed at an acute angle. The method of claim 1, The square base 21 of the radial fin is characterized in that formed at an obtuse angle.

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