TWI526665B - Radiator with radiating fins - Google Patents

Description

Radiator with radiating fins

The invention relates to a heat sink with a radiation fin, in particular, a vertical protrusion of the seat body is provided with a first convex portion which can be deformed from top to bottom, so as to form a compression joint with the heat sink to fit. It is used in central processing units (CPUs), light-emitting diode (LED) lamps or other heat-generating units to provide heat dissipation.

A heat sink having a plurality of radiating fins is known, for example, in Japanese Patent No. I269146, a plurality of fins are integrally formed on a peripheral wall surface of a tubular seat body, and each fin is formed in a radiation direction. The shape of the body can be implemented as a circular, square or any other shape of the tube body. However, the heat sink is an integrally formed heat sink. The overall manufacturing is of course difficult and inconvenient, and the cost is also high. The heat sink body is also relatively It is thicker, so the weight is heavy, and the heat dissipation effect is not ideal. It is difficult to achieve practicality.

The composition of the radiator and the radiating fin of the above-mentioned heat sink is not only integrated, but also by welding to complete the bonding, but the effect of welding is obviously not good, so some people insert the fin into the groove of the tubular seat. The groove is formed by inserting and inserting; or somebody is stamped on the end face of the groove, and the heat sink is squeezed and clamped by the pressure deformation of the groove end face, and the above-mentioned squeeze clamping is not confirmed if the heat sink is inserted in front. In the end, or the impact of the bounce of the punching vibration, it is easy to cause the root of the heat sink to not completely fall into the groove bottom of the groove, so not only can not obtain a stable positioning, but also easy to produce a different height of the heat sink. Defective phase, each heat sink will also have an angle The offset is not correct, causing looseness or falling off.

The main object of the present invention is to provide a heat sink design having a radiating fin, which comprises a tubular body and a plurality of fins in the radial direction for inserting a plurality of fins on the peripheral wall surface of the tubular body. A vertical groove adjacent in the axial direction, and particularly a first convex portion in an upright direction is provided on a side of the groove wall of each vertical groove, and a bottom portion of the heat sink has a bent portion at the heat sink matching implant seat After the vertical groove of the body, the first convex portion is deformed by the downward pressing of the stamping die, and is pressed against the bent portion of the heat sink to form a good compression joint, since the deformation is The first convex portion is pressed down against the bent portion of the heat sink, so that each heat sink can be completely inserted into the groove bottom of the vertical groove to obtain the most stable joint positioning, and each of the radiating heat is inserted in the radiation direction. The chips can be accurately pressed to the bottom, so each heat sink must be implanted at the same equal height, and the heat sink distribution will never be different.

A second object of the present invention is to provide a heat sink design having a radiating fin which can be further provided on the side of the vertical groove groove wall except for the first convex portion in the upright direction. A second protrusion in the upright direction is also added to the other side of the vertical groove groove wall. Therefore, when the heat sink is inserted into the vertical groove to complete the compression bonding, the second protrusion forms abutting contact with the heat sink body. It is possible to prevent the fins from being angularly offset more effectively.

Another object of the present invention is to provide a heat sink having a radiation fin, wherein the bent portion of the bottom end of the heat sink can be equal to or larger than Or any bend angle less than 90 degrees, and corresponding to the matching vertical groove implanted on the tubular seat.

Another object of the present invention is to provide a heat sink having a radiation fin, the body of which is not limited in thickness, but when implemented as a sheet-shaped fin, it can be provided at the bottom end of the sheet fin. Reversing the overlapping bent portions for increasing the strength of the bottom end, and the folded portions of the folded folds can also be implemented as any bending angle equal to, greater than, or less than 90 degrees for implantation and bonding Matching vertical grooves on the seat.

A further object of the present invention is to provide a heat sink having a radiating fin, which can be implemented as a circular, square or any other shape tube as needed, and the tubular body can be It is a solid pipe body or a hollow pipe body or a U-shaped pipe body.

A further object of the present invention is to provide a heat sink having a radiation-shaped heat sink which is well suited for forming a plurality of vertical grooves on the tube wall by extrusion techniques or by stamping and drawing techniques. And the first convex portion in the upright direction, or the second convex portion in the upright direction, thereby simplifying the overall manufacturing, being suitable for mass production and reducing the cost thereof.

The structural features of the present creation and other functions and purposes are described in detail in the following embodiments:

As shown in the first and second figures, the present invention is designed as a "heat sink with a radiating fin", and includes a tubular seat body 1 and a plurality of fins 2, wherein the tubular seat body 1 is attached to the seat body. The circumferential wall surface is plural and axially adjacent The vertical groove 11 and the groove wall side of each vertical groove 11 are provided with a first convex portion 12 extending upward in the upright direction; the plurality of fins 2 are radially embedded in the tubular body 1 And forming a bent portion 21 (such as the third figure) at the bottom end of each of the fins 2, and the bent portion 21 can be matched with the vertical groove 11 implanted in the tubular seat body 1, and the bent portion The bending length of 21 is matched with the vertical groove 11; by using the above-mentioned tubular seat body 1 and the plurality of fins 2, after each heat sink 2 is matched with the vertical groove 11 of the implant body 1, the punching can be matched The lower pressing of the mold 3 from the top down (as shown in the fourth figure) forces the first convex portion 12 to be deformed by pressing, and is pressed against the bent portion 21 of the heat sink 2 to form a good downward pressing joint, each under After the pressure deformation, the first convex portion 12 can press the bending portion 21 downward, so that each of the heat dissipation fins 2 can be completely inserted into the groove bottom of the vertical groove 11 to be firmly combined, and each heat sink 2 can be ensured. After the same equal height, there will never be a case where the angular offset is not correct or the combination is not stable.

In the above embodiment, the heat sink 2 is a sheet-shaped metal sheet body, and the first convex portion 12 in the upright direction of the seat body 1 can be formed into a pressing joint after being deformed, and the sheet type heat sink 2 is formed by the sheet body. Since the thickness is thinner, the bent portion 21 at the bottom end of the sheet-type fin 2 can be formed in a folded-folded shape, thereby reinforcing the strength at which the sheet-type fin 2 is pressed against the first projection 12. In addition, the outer front end of each of the sheet fins 2 may have a relatively passivated folded portion 22 to prevent the sheet fins 2 from being sharply cut due to the excessively sharp front end.

Another embodiment as shown in the fifth to seventh figures, the tubular shape of the present creation The seat body 1 is provided with a first convex portion 12 in an upright direction on the side of the groove wall of the vertical groove 11, and further may be provided with an upwardly extending vertical direction on the other side of the vertical groove 11 groove wall. The second convex portion 13 (as shown in the eighth or ninth view), therefore, when the heat sink 2 is inserted into the vertical groove 11 and pressed by the press die 3, the bent portion 21 of the heat sink 2 is deformed A convex portion 12 forms a tight joint, and the second convex portion 13 can provide a sheet of the heat sink 2 as a good abutting (as shown in the partial view of the tenth figure), and the design of the abutting and abutting is further It can ensure that each fin 2 does not have angular misalignment after bonding, so that each fin 2 can maintain a straight and stable colonization without shaking or falling off.

According to the foregoing embodiment, the plurality of fins 2 may further add one or more sets of clasps 23 on the upper or lower end faces, and the front and rear adjacent cleats 23 are fastened and coupled to each other to make a plurality The heat sink 2 can be a more compact joint.

The tubular seat body 1 of the present invention is shown as a circular pipe body in the embodiment, but in fact, the shape or size of the tubular seat body 1 is changed from the visual need, for example, as a rectangle or a rectangle. Elliptical, diamond or any other shape of the tube is also a feasible seat. The tubular body 1 can also be a U-shaped tubular body (such as FIG. 11), and a locking hole 141 can be formed in the closed surface 14 of the U-shaped tubular body for heating elements or electronic components. The lock body is combined; or the tubular seat body 1 can also be a solid pipe body (such as the twelfth figure). Of course, it may also be a hollow pipe body shape, so the actual shape of the tubular seat body 1 is not special. The need for restrictions.

As shown in the thirteenth to fifteenth figures, it mainly reveals the bottom of the heat sink 2 The bending angle of the bending portion 21 can be equal to, less than or greater than 90 degrees, and the groove bottom of each matching vertical groove 11 is also adapted to a corresponding angle. In addition, the heat sink 2 of the present invention is not limited to the use of a sheet metal sheet, for example, as shown in the thirteenth to fifteenth drawings, that is, a general metal sheet is used as the heat sink 2, and the same is also available. The vertical groove 11 is inserted into the tubular seat body 1 and deformed to form a pressing joint with the first convex portion 12, or further obtains a good abutting support by the second convex portion 12.

In addition, the tubular seat body 1 as described in the present invention may be U-shaped, solid, hollow, and the like in terms of its shape, size, or tube body, and all of the embodiments are specific and feasible, and the tubular seat body 1 is In terms of manufacturing, it is very suitable to adopt the extrusion technique or the technique of punching and stretching, and form a plurality of vertical grooves 11 on the pipe wall, a first convex portion 12 in an upright direction or a second convex portion in an upright direction. The portion 13 can thus simplify the molding and manufacturing of the tubular seat body 1, and is suitable for mass production and effective cost reduction.

In summary, the creation of the combination of the heat sink and the tubular seat body has a structural feature that is significantly different from that of the conventional heat sink system, so that the heat sink can be completely inserted into the vertical groove of the tubular seat body. The bottom of the groove is very stable. It can ensure that each heat sink maintains the same height and there is no angle skew. It has been progressive. To apply for this, please pray for details and please grant a patent. Real sense of virtue.

1‧‧‧ tubular seat

2‧‧‧ Heat sink

11‧‧‧ vertical trench

12‧‧‧First convex

21‧‧‧Bends

3‧‧‧Pressing die

22‧‧‧Reflexion

13‧‧‧second convex

23‧‧‧Bucks

14‧‧‧Closed surface

141‧‧‧Keyhole

The first figure is a combined perspective view of the first embodiment of the creation.

The second figure is an exploded perspective view of the first embodiment of the creation.

The third figure is a partially enlarged schematic view of the first embodiment of the present invention before the press-bonding.

The fourth figure is a schematic view of a state in which the first embodiment of the present invention has been partially pressed down and partially uncompressed.

The fifth figure is a combined perspective view of the second embodiment of the creation.

The sixth figure is a combined bottom view of the second embodiment of the creation.

The seventh drawing is an exploded perspective view of the second embodiment of the creation.

The eighth figure is a combined state diagram of the second embodiment of the present invention before the press-bonding.

The ninth drawing is a partially enlarged schematic view of the second embodiment of the present invention before the press-bonding.

The tenth figure is a schematic view showing a state in which the second embodiment of the present invention has been partially pressed down and partially uncompressed.

The eleventh figure is a schematic cross-sectional view of the composition of the U-shaped seat.

The twelfth figure is a schematic cross-sectional view of the composition of the creation with a solid seat.

The thirteenth figure is a combined state diagram of the non-sheet type heat sink after the press-bonding.

The fourteenth figure is a combined state diagram of the lower pressure combined with the creation of the heat sink by a bending angle of less than 90 degrees.

The fifteenth figure is a combined state diagram of the lower pressure combined with the creation of the heat sink by a bending angle of more than 90 degrees.

1‧‧‧ tubular seat

2‧‧‧ Heat sink

12‧‧‧First convex

21‧‧‧Bends

22‧‧‧Reflexion

23‧‧‧Bucks

Claims (12)

A heat sink having a radiation-shaped heat sink includes a tubular body and a plurality of heat sinks, wherein the tubular body is formed with a plurality of axially adjacent vertical grooves on a peripheral wall surface of the base body, and a first convex portion in an upright direction is disposed on one side of the groove wall of each vertical groove; a plurality of heat sinks are implanted in the tubular body in a radiation direction, and a bent portion is formed at a bottom end of each heat sink And the bending length of the bent portion is matched with the vertical groove implanted in the tubular seat body; and the above-mentioned tubular seat body and the plurality of heat sinks are used to match the vertical grooves of the implant body to each heat sink Thereafter, the pressing of the stamping die from the top to the bottom forces the first convex portion to be pressed down and pressed against the bent portion of the heat sink to form a downward pressing bond. The heat sink having a radiation fin according to claim 1, wherein the plurality of heat sinks are sheet-shaped metal sheets, and the bent portions at the bottom ends of the fins are reversely folded. The heat sink having a radiation fin according to claim 2, wherein the outer front end of the heat sink has a reverse portion. The heat sink having a radial fin according to claim 1, wherein the tubular seat body is also provided with a second convex portion in an upright direction on the other side of the vertical groove groove wall. The heat sink having a radial heat sink according to claim 1, wherein the plurality of heat sinks are provided with one or more sets of buckles which can be coupled to each other in front and rear. A heat sink having a radial fin according to claim 1, wherein the tubular seat system has a circular or elliptical tubular body. A heat sink having a radiation fin according to claim 1, wherein the tubular seat system is a rectangular, rectangular or diamond shaped tube. The heat sink having a radial fin according to claim 1, wherein the tubular seat system has a U-shaped tubular body. The heat sink having a radiation fin according to claim 8 of the patent application, wherein the closed surface of the U-shaped tube body has a locking hole. The heat sink having a radial fin according to claim 1, wherein the tubular seat system is a solid tubular body. The heat sink having a radial fin according to claim 1, wherein the tubular seat system is a hollow tubular body. The heat sink having a radiation-shaped heat sink according to claim 1, wherein the bending angle of the bottom end bent portion of the plurality of heat sinks is equal to, less than, or greater than 90 degrees.