KR20090007711U - Heat Sink Lug - Google Patents

Abstract

The present invention relates to a heatsink fixing device.

Embodiments of the present invention support for the shape corresponding to the lug insertion groove formed in the lower portion of the heat sink; And a fixing part protruding and extending in a vertical direction with respect to the support part at a point spaced from the end of the support part in a vertical direction, and penetratingly coupled to the through groove formed in the PCB.

Heatsink, Rug, PCB, Dead Zone

Description

Heat Sink Fixture {Heat Sink Lug}

Figure 1a is an exploded perspective view of a conventional heatsink fixing device.

Figure 1b is a coupled state of Figure 1;

Figure 2a is a combined state of the heat sink fixing device according to an embodiment of the present invention.

2B and 2C are detailed views of the lug shown in FIG. 2A.

Figure 3a is a combined state of the heat sink fixing device according to another embodiment of the present invention.

3B and 3C are detailed views of the lug shown in FIG. 3A.

<Description of the code used in the main part of the drawing>

400, 700: Heatsink

401, 701: lug insertion groove

500, 800: lug

501, 801: support portion

502, 802: fixed part

600, 900: PCB

601, 901: through groove

The present invention relates to a heatsink fixing device.

In general, a heat sink is an auxiliary device for dissipating heat generated from an electronic component to the outside, and a lug is provided as a fixing device for fixing the heat sink to a printed circuit board (PCB).

Lugs not only secure the heatsink to the PCB, but also allow the heatsink to be connected to the PCB's ground terminal through the lug.

1A and 1B are structural diagrams of a conventional heat sink.

In the lower end of the heat sink 100, a lug insertion groove 101 having a substantially "T" shape is formed in the longitudinal direction, and a part of the lug insertion groove 101 is open.

In addition, the lug 200 is provided with a substantially flat plate-shaped support portion 201 corresponding to the cutout shape of the lug insertion groove 101 so as to be slideable into the lug insertion groove 101, and from one side of the support portion 201. A fixing part 202 extending by a predetermined length is formed so as to extend downward and penetrate the through groove 301 of the PCB 300 and then be fixed by soldering.

That is, when the support part 201 of the lug 200 is slidingly coupled to the lug insertion groove 101 of the heat sink 100, the support part 201 of the lug 200 is a lug of the heat sink 100. The fixing part 202 is fixed to the insertion groove 101 and has a shape in which the fixing part 202 extends downward from the heat sink 100.

By the way, the lug 200 has a fixing portion 202 is formed at one end of the lug 200, and typically the through groove 301 of the PCB 300 is predetermined from the edge of the PCB 300. Since the perforations are separated by a distance (approximately 15 mm), when the heat sink 100 is coupled to the PCB 300, a dead zone in which the entire area of the PCB 300 cannot be used as shown in FIG. 1B. This happens. Therefore, the efficiency of the use area of the PCB 300 is lowered.

Embodiment of the present invention improves the efficiency of the use area of the PCB.

Embodiments of the present invention support for the shape corresponding to the lug insertion groove formed in the lower portion of the heat sink; And a fixing part protruding and extending in a vertical direction with respect to the support part at a point spaced from the end of the support part in a vertical direction, and penetratingly coupled to the through groove formed in the PCB.

In an embodiment of the present invention, the fixing portion may extend in a vertical direction at a point 15mm away from the end of the support.

In addition, the support portion and the fixed portion is configured in a "T" shape.

In addition, the fixing portion is first bent at a predetermined inclination from the end of the support, and the second bent so as to protrude in a vertical direction from the support when the first bent point is spaced apart from the end of the support by a predetermined distance. Can be.

In addition, the fixing portion, the distance from one side of the support portion to the point where the primary bent and the secondary bent vertically extended is 15mm.

In addition, the fixing portion is first bent at an angle of 45 degrees from the support portion, and is secondly bent at an angle of 45 degrees after extending by a predetermined distance from the first bent point.

In addition, one surface of the support is cut, one side of the cut portion is separated from the fixing portion, the other side of the cut portion is fixed to the fixing portion, 90 ° relative to the other side of the cut portion It may be vertically bent at an angle to form the fixing portion.

In addition, one surface of the support is cut, one side of the cut portion is separated from the fixing portion, the other side of the cut portion is fixed to the fixing portion, 45 ㅀ relative to the other side of the cut portion The first bending may be performed at an angle, extended by a predetermined distance from the first bending point, and then secondly bent at a 45 ° angle to form the fixing part.

Hereinafter, exemplary embodiment (s) of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2a is a combined state of the heat sink fixing device according to an embodiment of the present invention, Figures 2b and 2c is a detailed view of the lug shown in Figure 2a, Figure 3a is a heat sink according to another embodiment of the present invention Figure 3b and 3c is a detailed view of the lug shown in Figure 3a.

First, an embodiment of the present invention will be described with reference to FIGS. 2A to 2C. In the lower portion of the heat sink 400, a lug insertion groove 401 having a substantially “T” shape is formed in a length direction. Part of the lug insertion groove 401 is open.

In addition, the lug 500 includes a substantially flat plate support 501 corresponding to the cutout shape of the lug insertion groove 401 and a side of the support 501 so as to be slideable into the lug insertion groove 401. A fixing part 502 extending by a predetermined length is formed so as to extend downward and penetrate the through groove 601 of the PCB 600 and then be fixed by soldering.

In this case, as shown in FIG. 2B, the fixing part 502 is bent inward from one side of the support part 501 and extends downwardly, and the bending part extends downwardly from the fixing part ( 502 should be spaced approximately 15 mm from one end of the support 501.

To this end, the fixing part 502 is firstly bent by 45 mm inwardly from one end surface of the support part 501 and secondly bent by 45 mm downwardly at a point 15 mm away from one end surface of the support part 501. It has a structure.

In addition, as shown in Figure 2c, the fixing portion 502, a portion of the bottom surface of the support portion 501 is cut, one side of the cut portion is separated from the fixing portion 502, the other side is coupled 45 각각 on the basis of the combined portion may be configured in the form of primary and secondary bending.

That is, when the support part 501 of the lug 500 is slid to the lug insertion groove 401 of the heat sink 400, the support part 501 of the lug 500 is a lug of the heat sink 400. It is fixed to the insertion groove 401 and at the same time the fixing portion 502 is formed to protrude to the lower side of the heat sink 400.

In addition, by penetrating the fixing part 502 extending from the heat sink 400 through the through groove 601 of the PCB 600, the soldering part 502 protruding from the back surface of the PCB 600 is soldered. The heat sink 400 is firmly fixed to the PCB 600.

In this case, since the fixing part 502 is formed to be spaced apart by 15 mm from one end surface of the support part 501, one side of the heat sink 400 is substantially in line with an edge of the PCB 600. Since the heat sink 400 and the PCB 600 are coupled, the dead zone of the PCB 600 can be removed to efficiently use the PCB 600.

Meanwhile, referring to FIGS. 3A to 3C, according to another embodiment of the present invention, a lug insertion groove 701 having a substantially “T” shape is formed in a length direction at a lower portion of the heat sink 700. Part of the lug insertion groove 701 is open.

In addition, the lug 800 includes a substantially flat plate-like support 801 corresponding to the cutout shape of the lug insertion groove 701 and a side of the support 801 so as to be slideable into the lug insertion groove 701. A fixing portion 802 extending by a predetermined length is formed so as to extend downward from the through hole 901 of the PCB 900 and then be fixed by soldering.

In this case, as shown in FIG. 3B, the fixing part 802 extends vertically in a predetermined distance (about 15 mm) from one side of the support part 801, and the shape of the lug 800 is the heat sink. It becomes a "T" shape corresponding to the lug insertion groove 701 of 700.

In addition, as shown in Figure 3c, the fixing portion 802, a portion of the bottom surface of the support portion 801 is cut, one side of the cut portion is separated from the fixing portion 802 and the other side is coupled It can be configured in the form bent vertically by 90 을 relative to the combined portion in.

That is, when the support part 801 of the lug 800 is slid to the lug insertion groove 701 of the heat sink 700, the support part 801 of the lug 800 is the lug of the heat sink 700. The fixing part 802 is fixed to the insertion groove 701 and has a shape in which it protrudes downward from the heat sink 700.

In addition, after the fixing part 802 extending from the heat sink 700 passes through the through hole 901 of the PCB 900, the fixing part 802 protruding from the rear surface of the PCB 900 is soldered. The heat sink 700 is firmly fixed to the PCB 900.

In this case, since the fixing part 802 is formed to be spaced apart by 15 mm from one end surface of the support part 801, one side of the heat sink 700 is almost in line with an edge of the PCB 900. Since the heatsink 700 and the PCB 900 are coupled, the dead zone of the PCB 900 is removed to efficiently use the PCB 900.

As described above, the detailed description of the present invention has been described with respect to specific embodiment (s), but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiment (s), but should be defined by the utility model claims described below and equivalents to the utility model claims.

The present invention forms a fixing part of the lug for fixing the heatsink to the PCB by approximately 15 mm from the end of the heatsink, thereby removing the dead zone of the PCB so that the PCB can be efficiently used.

Claims (8)

A support having a shape corresponding to the lug insertion groove formed at the bottom of the heat sink; And And a fixing part protruding in a vertical direction with respect to the supporting part at a point spaced apart from an end of the supporting part in a vertical direction and penetratingly coupled to the through groove formed in the PCB. The method of claim 1, The fixing part, And a heatsink fixing device protruding in a vertical direction at a point 15 mm away from an end of the support. The method of claim 2, The heat sink fixing device of the support portion and the fixing portion is formed in a "T" shape. The method of claim 2, The fixing part, Is first bent at a predetermined slope from the end of the support, And the second bent heat sink fixing device protrudes vertically from the support when the first bent point is spaced apart from the end of the support by a predetermined distance. The method of claim 4, wherein The fixing part, And a distance from the one side of the support portion to the point at which the first bend and the second bend are vertically extended is 15 mm. The method of claim 4, wherein The fixing part, First bent at an angle of 45 degrees from the support, The second heat sink fixing device is bent at a 45 ° angle after extending a predetermined distance from the first bent point. The method of claim 2, One surface of the support is cut, One side of the cut portion is separated from the fixing portion, The other side of the cut portion is fixed to the fixing portion, The heat sink fixing device to form the fixing portion is bent vertically at an angle of 90 ° relative to the other side of the cut portion. The method of claim 4, wherein One surface of the support is cut, One side of the cut portion is separated from the fixing portion, The other side of the cut portion is fixed to the fixing portion, It is first bent at an angle of 45 degrees relative to the other side of the cut portion, And a second bend at a 45 [deg.] Angle after extending by a predetermined distance from the first bent point to form the fixing part.

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