JP2901486B2 - Extruded radiator structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a radiator extruded from an extruded material, and a tongue for attaching a printed circuit board to the radiator and a tongue for attaching the radiator to an apparatus body. And a radiator structure provided integrally with the radiator.

[0002]

2. Description of the Related Art Conventionally, in a radiator extruded from an extruded material such as aluminum, the thickness of a base portion of the radiator cannot be so thin to efficiently transfer heat to the entire fins. Aluminum material is not suitable for bending because it is fragile and easily cracked, and cracking will occur if thick material is bent, so tongues and radiators for attaching parts such as printed circuit boards are attached to the equipment body A tongue for attachment could not be provided integrally with the radiator.
Therefore, conventionally, as shown in FIG. 4, a mounting bracket 12 is screwed to a radiator 11, and a printed circuit board 13 is mounted on the mounting bracket 12, or the radiator is mounted on a device body.

[0003]

However, in the conventional radiator structure using the extruded material, a mounting board for mounting the printed circuit board and mounting the radiator to the main body of the apparatus must be attached in a separate process. Not only is the cost of parts such as mounting hardware and screws necessary, but also the number of man-hours increases, which is an obstacle to cost reduction.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned drawbacks of the prior art, eliminate the need for auxiliary parts such as mounting brackets, and eliminate the man-hours required for mounting the mounting brackets and the like, thereby reducing the cost. To provide a radiator structure.

[0005]

According to the radiator structure of the present invention, a radiator formed by extruding an extruded material, such as aluminum, is formed so that a part of a portion other than the fins can be bent. A processing part having a reduced thickness is provided, and a tongue piece is formed integrally with the processing part by pressing. The processing portion is provided at a part of a base portion of the radiator or at a part of a mounting portion formed on both sides of the base portion, and a tongue for mounting a printed board and a tongue for supporting a printed board are provided here. And a tongue for positioning, or a tongue for attaching the radiator to the apparatus body.

[0006]

[Function] When extruding a radiator from aluminum or the like, a part with a thickness small enough to be able to be bent is formed on a part of the part other than the fins, and this part is pressed. The tongue piece is integrally formed by cutting and raising.

The tongue is not only for mounting the printed circuit board, but also for supporting the printed circuit board or for positioning, or a mounting tongue for mounting the radiator to the apparatus body.
Since it is formed according to the purpose, the processed portion is provided at an optimum position where a tongue piece is to be formed. For example, a mounting portion provided on a part of a base portion of the radiator or on both sides of the base portion is provided. If a tongue piece is formed here by providing a processed part in a part of the tongue, a printed circuit board can be screwed to the tongue or a radiator can be attached to the device main body via the tongue, By forming a tongue piece for supporting and positioning the printed circuit board in an intermediate portion or the like, the printed circuit board can be reliably supported or positioned.

Since the tongue piece is formed integrally with the radiator, separate parts such as mounting brackets and screws are not required, and the number of steps for mounting the mounting bracket can be reduced. Since it is directly fixed to the piece, there is no looseness and the like, and it is securely fixed.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a radiator structure using an extruded material according to the present invention will be described with reference to FIGS. In the figure, 1 indicates a radiator extruded from an aluminum material, 2 indicates a fin, and 3 indicates a base. In the embodiment shown in FIG. 1, on both sides on the back side of the base portion 3, a processed portion 5 having a thickness small enough to be able to be bent by pressing is formed in a groove shape. The tongue 6 for mounting the printed circuit board is integrally formed by cutting and raising. 6a is a screw hole formed in the tongue piece 6, and 10 is a mounting hole for mounting a heat-generating component T such as a power semiconductor as shown in FIG.

In the embodiment shown in FIG. 1, the groove-shaped processed portions 5 are formed on both sides on the back side of the base portion 3 as described above, but in the embodiment shown in FIG. 2, the groove-shaped processed portions 5 are formed on the base portion. A processed part 5 is formed on one of the back sides of the fins 3 and on the other side in such a manner that the thickness of the bottom between the fins is reduced.

FIG. 2 shows an example in which the tongue piece 7 is formed by reducing the wall pressure of portions other than the base portion 3, for example, the mounting portions 4 provided on both sides of the base portion 3. . A screw hole 7a is formed in the tongue 7, but not only for the purpose of attaching the radiator to the device body, but also a component such as a printed board can be attached to the tongue 7.
Further, in the embodiment of FIG. 2, a tongue 8 for supporting the printed circuit board 9 is formed between the tongues 6 and 6. Note that a tongue piece for positioning the printed circuit board or the like may be formed at other appropriate locations.

FIG. 3 shows a state in which a printed board 9 is mounted on the radiator 1 according to the embodiment of FIG.
Are mounted on the base part 3, and the printed circuit board 9 is attached to the tongue piece 6 by mounting screws 9a.
Attached to.

[0013]

According to the radiator structure using the extruded material of the present invention, when extruding a radiator from an aluminum material or the like,
Since a processed part whose wall thickness was thin enough to be able to be bent was formed in a part of the part other than the fins, and the tongue piece was integrally formed by cutting and raising in this processed part by pressing, Unlike the related art, a separate member such as a mounting bracket is not required, so that the number of components can be reduced, and the number of steps for mounting the mounting bracket and the like can be reduced, thereby enabling cost reduction.

In the case where a processed portion is provided on a part of the base portion of the radiator or a part of the mounting portion provided on both sides of the base portion and a tongue is formed here, a printed board is screwed to the tongue. The radiator can be easily attached to the main body of the device via the tongue, and the tongue for supporting and positioning the printed board is formed at an intermediate portion thereof to securely support the printed circuit board. And can be positioned.

Furthermore, since the tongue piece is formed integrally with the radiator, the printed circuit board and the like are directly fixed to the tongue piece, and can be securely fixed without loosening.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a radiator structure using an extruded material according to the present invention.

FIG. 2 is a perspective view showing another embodiment of the radiator structure.

FIG. 3 is a perspective view showing a state where a heat-generating component and a printed circuit board are attached.

FIG. 4 is a side view showing a conventional extruded radiator.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 radiator 2 fin 3 base part 4 mounting part 5 processing part 6 tongue piece 6a screw hole 7 tongue piece 7a screw hole 8 tongue piece for supporting printed circuit board 9 printed circuit board 9a mounting screw 10 heat generating part mounting hole T heat generating part

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H01L 23/34-23/473 H05K 7/20

Claims (3)

(57) [Claims] In a radiator extruded from an extruded material such as aluminum, a processing part whose thickness is thin enough to be able to be bent is provided in a part of a part other than a fin, and the processing part is provided with a press. A radiator structure made of extruded material, wherein the tongue pieces are formed integrally by processing. 2. A processing part is provided on a part of a base part of a radiator, and a tongue piece is for mounting a printed circuit board or for mounting the radiator to a device body. A radiator structure using the extruded material according to claim 1. 3. A processing part is provided on both mounting parts of the radiator, and the tongue piece is for mounting the radiator to the apparatus body or for mounting the printed circuit board. A radiator structure using the extruded material according to claim 1.