JP2001274575A - Heat radiator and manufacturing method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heat radiator integrally comprising a part for supporting a fan arranged above a cut-and-raised fin, for reduced number of parts and assembly processes, resulting in cost-down and easy recycling. SOLUTION: The entire heat radiator is integrally formed of metal material such as extruded aluminum. There are provided a square substrate 2, a plurality of cut-and-raised fins 3 provided on the upper surface of the substrate 2, and two fan supporting raised walls 4A and 4B which extend upward from two edge parts almost vertical to a cut-and-raised fin 3 surface among four edge parts of the substrate 2 and support a fan 6 provided above the cut-and-raised fin 3. Each of raised walls 4A and 4B is preferred to have either a ventilation hole 5 or a ventilation notch formed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radiator used for radiating heat generated from a heat-generating electronic component such as a CPU in an electronic device such as a personal computer and a method of manufacturing the radiator.

[0002]

2. Description of the Related Art For example, during operation of a personal computer, heat is generated from a CPU incorporated therein.
In recent years, personal computers have become multifunctional and the processing speed has been remarkably increased. As a result, the output of the CPU has increased,
The amount of heat generated by the CPU is also increasing.

[0003] Therefore, it is common practice to dispose and fix a radiator on a socket to which a CPU is attached so that heat generated by the CPU is efficiently radiated to the outside. Also,
In order to further improve the cooling efficiency of the CPU, there are many personal computers in which a fan is further provided on a radiator.

As a radiator, there is known a radiator including a substrate and a plurality of shaving fins provided on the upper surface of the substrate. This radiator includes, for example, aluminum (including an aluminum alloy; the same applies hereinafter) including a substrate portion and a fin-forming work portion provided on the upper surface side of the substrate portion.
It is manufactured by preparing an extruded shape, shaving a cut portion of the same shape with a cutting tool or the like to form a fin, and cutting the fin-formed aluminum extruded shape to a predetermined length. The radiator can be formed by shaving and raising a large number of fins on the upper surface of the substrate, thereby providing a large radiating area.
It has also been used to cool PUs.

When the above-described radiator is used in combination with a fan, since the shaving fins are thin and do not have such a high strength, if the fan is placed directly on these fins, they may be deformed and damaged. Therefore, for example, a metal or synthetic resin fan support member including a top wall and a plurality of legs extending below the edge of the top wall is separately prepared, and the legs of the fan support member are mounted on the substrate in the radiator. It is conceivable to attach the fan to the top wall of the fan support member.

[0006]

However, as described above, if a fan support member is prepared in addition to the radiator and the fan and these members are assembled, the number of assembling steps increases accordingly. Also, at the time of recycling, when the fan support member is made of a material different from the radiator, the trouble of disassembling increases. Furthermore, due to the parts procurement costs and assembly costs required for the fan support members,
The cost is high.

An object of the present invention is to provide a radiator integrally provided with a portion for supporting a fan disposed above a shaving fin, thereby realizing cost reduction by reducing the number of parts and the number of assembly steps. And to facilitate recycling.

[0008]

A radiator according to the present invention comprises:
A rectangular substrate, a plurality of shaving fins provided on the upper surface of the substrate,
And two fan-supporting upstanding walls for extending a fan extending upward from two edges of the two edges that are substantially perpendicular to the surface of the shaving fins and supporting a fan disposed above the shaving fins. Is what it is. Since the radiator is integrally provided with the two rising walls for fan support as described above, it is necessary to prepare a separate fan support member and attach it to the radiator as in the related art at the beginning. Disappears. Therefore, according to the radiator of the present invention, the number of parts and the number of assembling steps can be reduced, the cost can be reduced, and the time required for disassembly during recycling can be reduced.

In the radiator, it is preferable that at least one of a ventilation hole and a ventilation notch is formed in each rising wall. If the ventilation holes and / or ventilation notches are formed in the upright walls for supporting the fans in this manner, there is no possibility that the flow of air in the ventilation gap between the shaving fins will be obstructed by the upright walls. Heat dissipation efficiency does not decrease.

In the radiator according to the present invention, the two rising walls for supporting the fan are formed so as to extend upward from two of the four edges of the substrate, which are substantially horizontal with respect to the fin surface. You may. In this case, since each rising wall does not usually hinder the flow of air in the ventilation gap between the shaving fins, it is not necessary to particularly form a ventilation hole and / or a ventilation notch in each rising wall. .

In the radiator according to the present invention, the upper end of each rising wall may be a supporting portion that directly supports the fan or indirectly supports the fan via an attachment member attached to the fan. In addition, each rising wall is formed with an inward protrusion extending horizontally inward from the upper end thereof, and at least the inward protrusion of the upper end and the inward protrusion of each rising wall directly supports the fan. In some cases, the support portion may be a support portion that indirectly supports the fan via an attachment member attached to the fan. An inward protrusion that extends horizontally inward from the upper end of one of the riser walls is formed on at least one of the upper end and the inward protrusion of one of the riser walls and the other of the other riser wall. In some cases, the upper end portion serves as a support that directly supports the fan or indirectly supports the fan via an attachment member attached to the fan. Further, each rising wall is formed with two upper and lower inward projections extending horizontally inward from an upper end thereof and a portion below a required height below the rising wall, and a lower inward projection on each rising wall is provided with a fan. And a supporting portion for directly supporting the upper and lower portions, and an inward opening concave portion formed by two upper and lower inward projecting portions and a rising wall portion therebetween.
The edge of the fan may be a fitting portion to be fitted.

The structure of the supporting portion of the rising wall and the length of the projecting portion when the inwardly projecting portion is formed are appropriately determined in consideration of the dimensional difference between the radiator and the fan, the arrangement of the fan, the mounting property, and the like. Is determined. In addition, the fan is preferably directly supported by the support portions of the two rising walls from the viewpoint of reduction in the number of parts and the number of assembling steps and in terms of recycling, but as described above, via the mounting member as necessary. It may be indirectly supported. Speaking of the mounting member, it is not necessary to take a complicated structure like a conventional fan support member, for example,
A plate-like member corresponding to only the top wall of the conventional fan support member is sufficient. Therefore, the burden of parts procurement costs can be reduced as compared with the related art.

Usually, a fan or a mounting member mounted on the fan is fixed to the support portions of the two rising walls. The fixing means is not particularly limited, and fitting, screw fastening,
It may be appropriately selected from welding, brazing, and the like, but fixing by fitting is advantageous in that the number of parts does not increase, the operation is simple, and the cost is low.

Next, the method of the present invention for manufacturing the radiator includes a substrate portion, a fin-formed work portion provided on the upper surface side of the substrate portion, and a rising portion extending outward from both edges of the substrate portion. The method includes preparing a metal material having a bent portion for forming a wall, and bending the bent portion of the metal material upward to form a rising wall. According to the above method, it is only necessary to add a step of bending the portion to be bent upward to the conventional method of manufacturing a radiator, and this step can be usually performed by a press, which requires special manufacturing equipment. Instead, the radiator according to the present invention can be manufactured efficiently and at low cost. Further, when manufacturing a radiator in which at least one of a ventilation hole and a ventilation notch is formed in each rising wall, the step of shaving the work portion and the step of bending the work portion are performed. A step of forming at least one of the ventilation hole and the ventilation notch in the bent portion of the metal material may be added between the steps, and this step can also be performed by a normal press. As the metal material, usually, a metal extruded shape such as an aluminum extruded shape is used.
A metal clad material such as a / Cu clad plate may be used.

Another method of the present invention for manufacturing the radiator includes a substrate, a fin-formed portion provided on the upper surface side of the substrate, and an upper portion extending from both edges of the substrate. The method includes preparing a metal material having a rising wall portion and shaving and raising a portion to be cut of the metal material to form a fin. The second manufacturing method includes the first manufacturing method.
As compared with the manufacturing method of the above, the manufacturing efficiency of the radiator according to the present invention can be further improved by the absence of the step of bending the bent portion upward. In the case of manufacturing a radiator in which at least one of the ventilation hole and the ventilation notch is formed in each rising wall, in the same manner as described above, the step of shaving and raising the workpiece and the bending and bending are performed. A step of forming at least one of the ventilation hole and the ventilation notch in the bent portion of the metal material may be added between the bending of the portion.

In the above-mentioned radiator, two rising walls for supporting the fan are formed so as to extend upward from two of the four edges of the substrate which are substantially horizontal with respect to the fin surface. The method of the present invention for manufacturing includes a substrate portion,
Preparing a metal material having a fin forming work part provided on the upper surface side of the substrate part, shaving and raising a work part of the metal material to form a fin, a metal material having the fin formed thereon Cutting to a predetermined length, shaving and raising both ends of the substrate portion of the cut metal material to cut off the fins to form a bent portion for rising wall formation, and bending the bent portion of the metal material upward. And forming a rising wall. According to the above method, it is only necessary to add a fin cutting step and a step of bending the bent part upward to the conventional radiator manufacturing method. The former step is usually performed by a milling machine, and the latter step is performed. Can be usually carried out by pressing, so that a radiator according to the present invention can be manufactured efficiently and at low cost without requiring special manufacturing equipment.

[0017]

Next, an embodiment of the present invention will be described with reference to the drawings. In the following description, the horizontal length direction of the shaving fins is referred to as the left-right direction, and the horizontal direction perpendicular thereto is referred to as the front-back direction. In the front-back direction, the front side of each drawing is referred to as front, the back side is referred to as rear, and the left and right when viewed from the front is referred to as left and right.

FIG. 1 shows a first embodiment of a radiator according to the present invention. In FIG. 1, the radiator (1)
The whole is integrally formed from an extruded aluminum material, and comprises a rectangular substrate (2), a plurality of shaving fins (3) provided on the upper surface of the substrate (2), Of the two edges, the two edges perpendicular to the plane of the fins (3), that is, the fan (6) that extends upward from the left and right edges and is disposed above the fins (3) And two right and left fan supporting upright walls (4A, 4B). Each rising wall (4A, 4B) is formed with two ventilation holes (5).

A U-shaped groove is formed at the center of the left and right widths of the upper surface of the substrate (2).
(21) is formed. A lower protruding portion (22) is formed in the middle portion of the lower surface of the substrate (2) in the left and right width.

The shaving fin (3) is a tongue having a rectangular shape slightly longer in the left-right direction as viewed from the front and a convex arc shape as viewed from the side, and has a U-shaped groove in the upper surface of the substrate (2).
(21) are provided side by side at predetermined intervals in the front-rear direction on both left and right portions. The gap between the shaving fins (3) adjacent to each other before and after is the ventilation gap (S).
Is made.

Two ventilation holes (5) in each rising wall (4A, 4B)
Have a slightly longer rectangular shape in the front-rear direction, and are formed side by side in the front-rear direction like a window. The right rising wall (4A) is slightly higher than the left rising wall (4B). Right rising wall
(4A) is formed with an inward protruding portion (42) which extends inward from the upper end portion thereof in a short and horizontal manner. The upper end and the inwardly protruding portion (42) of the right upright wall (4A) and the upper end of the left upright wall (4B) form a support portion (41) for directly supporting the fan (6) as described later. You. A sharp engaging projection (43) is formed on the inner side surface of the lower part of the upper end of the left rising wall (4B). However, in the case of the first embodiment,
Since the lower part of the upper end part covers a part of the ventilation hole (5), the engaging projection (43) is divided into three parts at the front and rear ends and the central part of the left rising wall (4B). Is formed. The lower portion of the right upright wall (4A) below the inward protruding portion (42) and the engagement protrusion (4
The lower part than 3) has an inclined inner surface so that the thickness decreases as going upward.

As shown in FIGS. 2 and 3, the radiator (1)
Is disposed on a socket (83) to which a CPU (81) with a package (82) is attached, and is fixed to the socket (83) by a clip (9). The socket (83) is mounted on a motherboard (85) incorporated in a personal computer main body (not shown). Then, the fan (6) is placed above the shaving fins (3) in the radiator (1).
Are located, and two right and left rising walls (4
The fan (6) is directly supported by the support portion (41) of the (A, 4B).

The clip (9) extends in the front-rear direction and is formed in a horizontal strip base (91) and a base (91) arranged in the U-shaped groove (21) of the substrate (2) in the radiator (1). Front and rear two upper protrusions (92) projecting obliquely upward from both ends outward;
It consists of two front and rear legs (93) extending downward from the outer end of each upper protruding portion (92). At the lower end of each leg (93), a through-hole (94) is formed in which a hole edge is fitted into each of the projections (84) formed on the front and rear side surfaces of the socket (83).

The fan (6) is made of a synthetic resin frame (61).
It has. The frame (61) is provided with a plate-like projection (62) projecting outward from the lower end of its peripheral edge and having a rectangular outline when viewed from a plane. Overhang (62)
Is supported by a support portion (41) including an upper end portion of the right rising wall (4A) and an inwardly protruding portion (42). Further, on the inside of the right edge on the lower surface of the overhang portion (62), a fitting L-shaped bent portion (63) having a lower end bent outward is provided, and this L-shaped bent portion (63) is provided. 63) is fitted over the inwardly protruding portion (42) of the right rising wall (4A). A lower protrusion (64) having a protrusion height substantially equal to the difference between the heights of the two rising walls (4A, 4B) is provided at the left edge of the overhang (62). (64)
Is supported by a support portion (41) formed by the upper end portion of the left upright wall (4B). Further, an engaging hanging wall portion (65) having a distal end bent outward is provided on an inner portion of the lower end surface of the lower protruding portion (64), and a distal bent portion of the hanging wall portion (65) is provided. (651) is engaged with the engaging projection (43) of the left upright wall (4B).

When attaching the fan (6) to the radiator (1),
First, the overhang (6) of the frame (61) of the fan (6)
The right edge of (2) is placed on the support portion (41) of the right rising wall (4A), and the L-shaped bend for fitting the lower surface of the projecting portion (62) on the inward protruding portion (42) of the right rising wall (4A). Part (63) is fitted. Then, when the left edge of the overhang portion (62) is pressed down, the bent end portion (651) of the hanging wall portion (65) comes into contact with the inclined surface of the engagement projection (43), When the left upright wall (4B) is elastically deformed so as to slightly spread outward, and the bent end portion (651) passes over the engagement projection (43), the left upright wall (4B) is restored, and the left upright wall (4B) is restored. The tip of the projection (43) is bent at the tip
It is stopped by 51). Thus, the fan (6)
It is fixed to the both rising walls (4A, 4B) of (1).

Next, with reference to FIG. 4 to FIG.
The manufacturing method (1) will be described. First, an extruded aluminum member (10) as shown in FIG. 4 is prepared. This aluminum extruded profile (10) has a base (20) having a U-shaped groove (210) at the center in the left and right widths, and upper and lower sides of both right and left outer portions of the U-shaped groove (210) in the base (20) The fin forming work part (3
0) and a bent portion (40) for rising wall formation extending outward from both left and right edges of the substrate portion (20). The depth of the U-shaped groove (210) is obtained by adding the thickness of the work (30) to the depth of the U-shaped groove (21) to be formed on the substrate (2) of the obtained radiator (1). It has been done. Next, as shown in FIG. 5, a cut portion (30) of the extruded aluminum material (10) is cut and raised from behind using a cutting tool (not shown) to form a fin (3). Also, extruded aluminum material (20) with shaving fins (3) formed
Are cut at predetermined lengths by a cutter. Then, FIG.
As shown in the figure, in the bent part (40) of the cut aluminum extruded shape (10), a ventilation hole (5) is formed by using a piercing die (D1).
Open. Finally, as shown in FIG. 7, the bent portion (40) of the extruded aluminum member (10) having the hole (5) is bent upward by using a press die (D2) to form a rising wall. (4A, 4
Form B). Thus, the radiator (1) shown in FIG. 1 is obtained.

FIG. 8 shows a modification of the rising walls (4A, 4B) of the radiator (1). In FIG. 8, each rising wall (4A,
4B) has a vertical rectangular shape from the upper edge to the lower edge.
Two ventilation notches (15) are formed in parallel in the front-rear direction. As a result, the portion of each rising wall (4A, 4B) above the lower end is divided into five portions in the front-rear direction.

FIG. 9 shows another modification of the rising walls (4A, 4B) of the radiator (1). In FIG. 9, a large horizontal rectangular ventilation hole (25) is formed in each rising wall (4A, 4B) except for its peripheral edge.

FIG. 10 shows another modification of the rising walls (4A, 4B) of the radiator (1). In FIG. 10, four upright rectangular ventilation holes (35) are formed in each of the rising walls (4A, 4B) in two rows vertically and vertically in two rows.

FIG. 11 shows a second embodiment of the radiator according to the present invention. In FIG. 11, a radiator (11)
The whole is integrally formed from an extruded aluminum material, a square substrate (12), a plurality of shaving fins (13) provided on the upper surface of the substrate (12), the substrate (12) Of the four edges of the fins (13)
And two front and rear fan support upright walls (14) for supporting a fan (6) disposed above the fins (13), extending upwardly from the front and rear edges and shaving. I have.

A band-shaped flat portion (121) is formed at the center of the left and right widths of the upper surface of the substrate (12).

Similar to the fins (3) of the radiator shown in FIG. 1, the fins (13) have a rectangular shape slightly longer in the left-right direction when viewed from the front and a convex arc shape when viewed from the side. And a band-shaped flat portion (1) on the upper surface of the substrate (12).
21), are provided in parallel at predetermined intervals in the front-rear direction on both left and right sides, and a gap between the cutting and raising fins (13) adjacent in the front-rear direction is a ventilation gap (S).

Each of the rising walls (14A, 14B) is not provided with a ventilation hole, but is provided with a vertically rectangular clip-passing notch (144) extending from the upper edge to the lower edge of the central portion in the left and right widths. Is formed. The front rising wall (14A) is the rear rising wall (14A).
It is slightly higher than B). The front rising wall (14A) is formed with an inwardly protruding portion (142) that extends shortly and horizontally inward from the upper end thereof. The upper end of the front upright wall (14) and the inwardly protruding portion (142), and the upper end of the rear upright wall (14B) are attached to the mounting member (7) attached to the fan (6) as described later. Support (141) that indirectly supports the fan (6) via
Is made. A sharp engaging projection (143) is formed on the inner surface of the lower portion of the upper end of the rear rising wall (14B).

As shown in FIG. 12 and FIG.
(11) is arranged on the socket (83) to which the CPU (81) with the package (82) is attached, and is fixed to the socket (83) by the clip (9). The socket (83) is mounted on a motherboard (85) incorporated in a personal computer main body (not shown). And
The fan (6) is arranged above the shaving fins (13) in the radiator (11), and the fan (6) is moved forward and backward in the radiator (11) through the mounting member (7) attached thereto. It is indirectly supported by the support portions (141) of the two rising walls (14A, 14B).

The clip (9) in FIGS. 12 and 13 is the same as that shown in FIGS. 2 and 3, except that in the second embodiment, the two upper and lower projecting portions (92) are provided with a radiator. (11)
The front and rear two rising walls (14A, 14B) are passed through notches (144) for clip passage.

The fan (6) is provided with a synthetic resin frame (161) as shown in FIGS.
This frame (161) includes the frame (6
The overhang portion (62) as in 1) is not provided, and vertical bolt insertion holes (162) are formed at four corners of the frame (161).

As shown in FIGS. 12 and 13, the mounting member (7) is made of a synthetic resin square plate having a circular ventilation hole (71) formed in the center. Four bolt insertion holes (72) corresponding to the bolt insertion holes (162) of the frame (161) of the fan (6) are provided around the ventilation holes (71) of the mounting member (7).
Are formed. This mounting member (7) has four bolts
(B) ・ Attached to the frame (161) of the fan (6) by a nut (N). And the front edge of the mounting member (7)
The support portion (141) of the front rising wall (14) is supported. At the inside of the front edge of the lower surface of the mounting member (7), there is provided a fitting L-shaped bent portion (73) having a lower end bent outward, and the L-shaped bent portion (73) is provided. , And can be fitted over the inwardly protruding portion (142) of the front rising wall (14A). At the rear edge of the mounting member (7), there is provided a lower protruding portion (74) having a protruding height substantially equal to the height difference between the two rising walls (14A, 14B).
An outer portion of the lower end surface of the (74) is supported by the support portion (141) of the rear rising wall (14B). In addition, an engaging hanging wall portion (75) having a tip portion bent outward is provided on an inner portion of the lower end surface of the lower protruding portion (74), and a tip bent portion of the hanging wall portion (75) is provided. The engagement protrusion (143) of the rear rising wall (14B) is engaged with (751).

When attaching the fan (6) to the radiator (11), first attach the mounting member (7) to the frame (161) of the fan (6) with bolts (B) and nuts (N). The front edge of the mounting member (7) is placed on the upper end of the front rising wall (14A) and the inwardly projecting portion (142), and the mounting member (142) is mounted on the inwardly projecting portion (142) of the front rising wall (14A). The fitting L-shaped bent portion (73) of 7) is fitted and covered. Then, when the rear edge portion of the mounting member (7) is pushed down, the tip bent portion of the hanging wall portion (75) is pressed down.
(751) abuts against the inclined surface of the engagement projection (143), and is elastically deformed so that the rear rising wall (14B) slightly spreads outward, and the bent end portion (751) replaces the engagement projection (143). When the vehicle climbs downward, the rear rising wall (14B) is restored, and the distal end of the engaging projection (143) is engaged with the distal bent portion (751). Thus,
The fan (6) is fixed to the rising walls (14A, 14B) of the radiator (11) via the mounting member (7).

Next, a method for manufacturing the radiator (11) shown in FIG. 11 will be described with reference to FIG. First, a substrate part (120) having a U-shaped groove in the center of the left and right widths,
An almost plate-shaped extruded aluminum material consisting of a fin-forming portion provided on the upper surface side of the left and right outer portions of the shaped groove
Prepare (110). The depth of the U-shaped groove is substantially equal to the thickness of the work. Next, the cut portion of the extruded aluminum material (110) is cut and raised from behind using a cutting tool to form a fin (13). In addition, shaving fin
The extruded aluminum member (110) on which (13) is formed is cut by a cutter at predetermined lengths. Then, as shown in FIG. 14, the upper surface side of both ends of the substrate part (120) in the cut aluminum extruded profile (110) is cut by using a milling machine including the shaving fins (13) in the same part. Then, the bent portion (140) for forming the rising wall is formed. Also,
A cut-out notch (144) is formed in the bent portion (140) by using a piercing die (not shown). Finally, as shown in FIG. 14, the bent portion (14) of the extruded aluminum member (110) is used.
0) is bent upward using a press die (not shown) to form rising walls (14A, 14B). Thus, FIG.
The radiator (11) shown in (1) is obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of a radiator according to the present invention.

FIG. 2 is an exploded perspective view showing a process of assembling the radiator of FIG. 1, a socket to which a CPU is attached, and a fan.

FIG. 3 is a perspective view showing a state where the radiator of FIG. 1, a socket to which a CPU is attached, and a fan are assembled.

FIG. 4 is a perspective view showing a first step of the method for manufacturing the radiator of FIG. 1;

FIG. 5 is a perspective view showing a second step in the method for manufacturing the radiator of FIG. 1;

FIG. 6 is a perspective view showing a third step of the method for manufacturing the radiator of FIG. 1;

FIG. 7 is a perspective view showing a fourth step in the method for manufacturing the radiator of FIG. 1;

FIG. 8 is a perspective view showing a modification of a rising wall in the radiator of FIG. 1;

FIG. 9 is a perspective view showing another modified example of the rising wall in the radiator of FIG. 1;

FIG. 10 shows still another rising wall in the radiator of FIG.
It is a perspective view which shows two modification examples.

FIG. 11 is a perspective view showing a radiator according to a second embodiment of the present invention.

12 is an exploded perspective view showing a process of assembling the radiator of FIG. 11, a socket to which a CPU is attached, and a fan.

13 is a vertical cross-sectional view showing a state where the radiator of FIG. 11, a socket to which a CPU is attached, and a fan are assembled (however, the fan is omitted).

FIG. 14 is a side view showing one step of the method for manufacturing the radiator in FIG. 11.

[Explanation of symbols]

 (1) (11): Radiator (2) (12): Substrate (3) (13): Sharpening fin (4A) (4B) (14A) (14B): Upright wall for fan support (41) (141) ): Supporting part (42) (142): Inward protruding part (5) (25) (35): Ventilation hole (15): Vent notch (6): Fan (7): Mounting member (10) : Extruded aluminum (metal material) (20) (120): Substrate (30): Machining part for fin formation (40) (140): Curved part for rising wall formation

Claims (9)

[Claims] 1. A rectangular substrate, a plurality of shaving fins provided on an upper surface of the substrate, and substantially perpendicular to a shaving fin surface among four edges of the substrate. 2 for supporting a fan extending upwardly from the two edges and disposed above the fins.
A radiator comprising: two fan-supporting rising walls. 2. Each of the rising walls has at least one of a ventilation hole and a ventilation notch formed therein.
The radiator according to claim 1. 3. A rectangular substrate, a plurality of shaving fins provided on an upper surface of the substrate, and substantially parallel to a shaving and fin surface of four edges of the substrate. 2 for supporting a fan extending upwardly from the two edges and disposed above the fins.
A radiator comprising: two fan-supporting rising walls. 4. The support according to claim 1, wherein an upper end portion of each rising wall is a support portion that directly supports the fan or indirectly supports the fan through an attachment member attached to the fan. A radiator according to one of the above. 5. An inwardly projecting portion extending horizontally inward from an upper end of each rising wall, and at least the inwardly projecting portion of the upper end and the inwardly projecting portion of each rising wall includes a fan. The radiator according to any one of claims 1 to 3, wherein the radiator is configured to directly support or indirectly support the fan via an attachment member attached to the fan. 6. An inward protruding portion extending horizontally inward from an upper end of one of the rising walls, and at least an inward protruding portion of the upper end and the inward protruding portion of the one rising wall; The upper end portion of the other rising wall is a support portion that directly supports the fan or indirectly supports the fan via an attachment member attached to the fan.
3. The radiator according to any one of 3. 7. The method for manufacturing a radiator according to claim 1, wherein the substrate portion, a fin-formed cut portion provided on an upper surface side of the substrate portion, and outward from both edges of the substrate portion. Preparing a metal material having a rising portion for forming a rising wall that extends;
Shaving and raising metal parts to form fins,
And forming a rising wall by bending the bent portion of the metal material upward. 8. The method for manufacturing a radiator according to claim 1, further comprising: a substrate portion; a fin-formed portion provided on an upper surface side of the substrate portion; A method for manufacturing a radiator, comprising: preparing a metal material having a rising wall portion extending therefrom; and shaving and raising a work portion of the metal material to form a fin. 9. A method for manufacturing a radiator according to claim 3, wherein a metal material including a substrate portion and a fin-forming work portion provided on an upper surface side of the substrate portion is prepared. Forming a fin by shaving a portion to be cut of a metal material, cutting the metal material on which the fin is formed into a predetermined length, and cutting off the fin by shaving both ends of the substrate portion of the cut metal material. A method for manufacturing a radiator, comprising: forming a bent portion for forming a rising wall; and bending the bent portion of a metal material upward to form a rising wall.