JP2001053204A - Heat radiator with clip - Google Patents

Abstract

PROBLEM TO BE SOLVED: To package a heat radiator and a clip together for excellent heat radiation. SOLUTION: A heat radiator 1 and a clip 5 held by it are provided. The heat radiator 1 comprises a heat radiation substrate 3 comprising an internally- enlarged channel 2 on its upper surface, and a heat radiation fin 4 provided on the upper surface of the heat radiation substrate 3. The clip 5 comprises a base 6 arranged in the internally-enlarged channel 2. At both, front and rear ends of the base 6, protruding parts 7 and 8 which extend from inside the channel 2 and whose tips come to the outside in front and rear directions and above the heat radiation substrate 3 are formed. The tip ends of both protruding parts 7 and 8 are provided with leg parts 12 and 13 which extend downward while comprising through holes 10 and 11 which engage with the projection of a socket at lower ends. The base 6 comprises a band-like part 15 with a width narrower than that of the opening of the channel 2 and sideway extension parts 14 formed integrally, respectively, at both side edges of the band-like part 15. The width between the tip ends of the left and right sideway extension parts 14 is wider than the opening width of the channel 2 while narrower than a bottom part width.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a CPU having a package provided on a printed circuit board, for example, in a housing of a personal computer.
The present invention relates to a radiator with a clip, comprising: a radiator for radiating heat generated from the radiator; and a clip held by the radiator and fixing the radiator to a socket to which the CPU is attached.

[0002] In this specification, the term "aluminum" includes an aluminum alloy in addition to pure aluminum. In this specification, the upper and lower sides of each drawing are referred to as upper and lower sides, the lower left side of FIG. 1 (the left side of FIGS. 5 and 6) and the lower left side of FIG. Good, left and right when looking from the front to the rear are left and right.

[0003]

2. Description of the Related Art For example, in a personal computer, a CPU having a package in a socket provided on a printed circuit board called a motherboard provided in a housing.
(Central processing unit) is attached. by the way,
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 calorific value has also increased significantly. Therefore, the radiator is C
In such a state, it is arranged to be in contact with the PU, and in this state, the clip is fixed to a socket of the motherboard using a clip.

As shown in FIGS. 14 and 15, a conventional radiator (40) is composed of a radiating board (41) made of an extruded aluminum material having a flat lower surface and a radiating board (41) arranged in parallel with the radiating board (41). And a plurality of plate-shaped heat dissipating fins (42) that are integrally formed in a shape and extend in the extrusion direction (front-rear direction) of the heat dissipating substrate (41). The left and right side edges of the lower surface of the heat dissipation board (41)
A longitudinally extending hanging wall (45) engaging with the left and right sides of the package (44) of the PU (43) is integrally formed in a downwardly projecting shape. The length of the hanging wall (45) is shorter than the length of the heat dissipation board (41), and its rear end is located forward of the rear end of the heat dissipation board (41). And both hanging walls (45) are each CPU (43)
And the rear ends of both hanging walls (45) are respectively attached to the left and right front ends of the rear upper protruding portion (46c) of the socket (46) of the motherboard (M). The contact allows positioning of the radiator (40) in the left-right direction and the front-back direction.

Such a radiator (40) is composed of a radiating board (41) and a radiating fin (42), and hanging walls (45) extending in the front-rear direction on both side edges thereof are integrally formed over the entire length. It is manufactured by forming an extruded aluminum profile and then cutting the rear end of the hanging wall (45) of the extruded profile over a predetermined length.

A clip (47) for fixing the radiator (40) to the socket (46) is provided with a radiator fin (42) on the upper surface of the radiator board (41).
A band-shaped horizontal base part (48) which is in surface contact with the left and right central parts where no is formed, and an arc-shaped curved part (49) integrally formed in an upwardly projecting shape at both ends of the band-shaped horizontal base part (48). ,
It comprises a vertically downward leg (50) integrally formed at the tip of each of the curved portions (49). In the lower part of the leg part (50), a through hole into which the projections (46a) (46b) formed integrally at the center in the left-right direction of the front and rear end faces of the socket (46) are fitted.
(51) is formed. Also, through holes in the legs (50)
The portion below (51) is slightly bent outward in the front-rear direction. This bent portion is indicated by (50a). clip
(47) is manufactured by press-forming a thin plate made of spring steel, stainless steel, or the like, and has spring-like elasticity.

A method for fixing the radiator (40) to the socket (46) using the clip (47) is as follows. That is,
A heat conductive resin film (not shown) is adhered to a predetermined position on the lower surface of the heat radiator (41) of the heat radiator (40), and the heat radiator is so adhered to the upper surface of the CPU (43) that the heat conductive resin film adheres. (40)
Place. At this time, the function of the hanging wall (45) of the heat radiating board (41) allows the radiator (40) to be positioned in the left-right direction and the front-rear direction, and the CPU (43) Adhere to the upper surface of the Next, the clip (47) is arranged on the heat radiating board (41) such that the band-shaped horizontal base portion (48) is located between the two heat radiating fins (42) at the center in the left-right direction, and the both curved portions (49 ) Is pressed downward to elastically deform both the curved portions (49) and both legs (50), and into the through holes (51) of the front and rear legs (50), the front and rear ends of the socket (46) The protrusions (46a) and (46b) formed on the surface are press-fitted respectively. At this time, the two legs (50) are elastically deformed so as to temporarily open outward in the front-rear direction by the outwardly bent portions (50a) being pressed by the projections (46a) (46b), and the outwardly bent portions (50a) Is a protrusion (46
a) After passing through (46b), the elastic force returns to the original state, the projections (46a) and (46b) fit into the through holes (51), and the projections (46
a) The (46b) and the lower edge of the through hole (51) are firmly engaged. Thus, the radiator (40) has a lower surface of the radiator substrate (41) having the CP.
Socket in close contact with the top surface of U (43) package (44)
It is fixed to (46).

However, in the case of the above-mentioned radiator (40), it is necessary to cut out the hanging wall (45) after forming the extruded material in order to manufacture the radiator (40), which is troublesome. There was a problem. In addition, radiator (40)
And the clip (47) are separated, so that they have to be packed separately, and there is a problem that the work is troublesome. Moreover, since the plate-shaped heat radiation fins (42) extending in the extrusion direction are integrally formed on the upper surface of the heat radiation substrate (41) made of extruded shaped material, the heat radiation fins (4
As the thickness of 2) becomes relatively large, the fin pitch, which is the distance between adjacent heat radiation fins (42), becomes relatively large, and as a result, the socket provided on the motherboard (M) in the housing of the personal computer. (46), and when the size of the heat dissipation board (41) is limited by the CPU (43) attached to the socket (46), a sufficient heat dissipation area cannot be obtained, and the heat dissipation performance is poor. There was a problem.

Therefore, in order to solve these problems,
A radiator with a clip described in U.S. Pat. No. 5,570,271 has been proposed. This radiator with a clip is composed of a radiator and a clip held by the radiator, and the radiator is integrally formed in parallel with a radiator substrate having a flat lower surface and an upper surface of the radiator substrate. With a plurality of plate-shaped radiating fins
A clip is formed integrally with the band-shaped horizontal base portion, a vertical leg portion integrally formed at each end portion of the band-shaped horizontal base portion and extending downward, and both side edges at an intermediate portion of the length of the band-shaped horizontal base portion. And a convex wall extending in the longitudinal direction formed on the mutually facing surfaces of the two plate-like fins formed at the center in the left-right direction.
The clip is held by the radiator by engagement of projections formed on the outer surface of each hanging wall of the clip.

In the case of this radiator with a clip, the radiator is made of extruded aluminum material, and the radiating substrate, the plate-shaped radiating fins, and the ridge are integrally formed by extrusion. Becomes easy. Also,
Since the clips are held by the radiator, they can be packed together, which facilitates the packing operation. However, since the clip is held by the engagement between the projection formed on the radiation fin of the radiator and the projection formed on the clip, the projection is formed in order to increase the holding strength. The thickness of the fins should be increased, and the radiator is made of extruded material. Therefore, due to its manufacturing technology, the thickness of other radiating fins is relatively large, and the fin pitch is also relatively large. . Therefore, a sufficient heat radiation area cannot be obtained, and the heat radiation performance is relatively low.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, to simplify the manufacture of a radiator, to pack a radiator and a clip together,
An object of the present invention is to provide a radiator with a clip that has improved adhesion to U and has excellent heat radiation performance.

[0012]

According to the first aspect of the present invention, there is provided a radiator with a clip for radiating heat generated from a CPU having a package, a radiator held by the radiator, and wherein the CPU is mounted. A radiator with a clip comprising a clip for fixing the radiator to a socket, wherein the radiator has a flat lower surface and an internal expansion groove formed on the upper surface; It consists of a radiating fin provided on the upper surface of the substrate except for the internal expansion groove, and a clip is formed integrally with the base portion disposed in the internal expansion groove and at both front and rear ends of the base portion A protrusion extending from the inside of the internal expansion groove and having a tip above the heat dissipation board and extending outward in the front-rear direction, and integrally formed at the tips of both the protrusions, respectively. And a leg portion having an engaging portion that can be engaged with a part of the socket at the tip, and the width in the left-right direction is wider than the opening width of the internal enlarged groove on the base portion of the clip, and A portion narrower than the bottom width is provided.

According to the radiator with the clip according to the first aspect of the present invention, the base portion of the clip is provided with a portion in which the width in the left-right direction is larger than the opening width of the internal enlarged groove and smaller than the bottom width. As a result, the clip is held without falling off from the radiator and without being displaced in the left-right direction. Therefore, the radiator and the clip can be packed together, and the operation is simplified. In addition, since the clip does not shift in the left-right direction with respect to the radiator, when the radiator is fixed to the socket using the clip, the position of the radiator in the left-right direction with respect to the socket can be accurately determined. In addition, the radiator includes a heat radiating substrate having a flat lower surface and an internal expansion groove formed on the upper surface, and a heat radiating fin provided on a portion of the upper surface of the heat radiation substrate except for the internal expansion groove. Therefore, the heat dissipation substrate can be extruded, and the manufacturing operation can be simplified. Further, by disposing the base portion of the clip at the bottom of the groove of the internal enlarged groove, the clip is held by the radiator. Therefore, as described in U.S. Pat. There is no need to hold. Therefore, it is possible to use a thin tongue fin, a pin fin, and a thin plate fin brazed to the heat radiating board, which are extruded as a result. As compared with the case of the plate-shaped fins, the heat dissipation area is increased, and the heat dissipation performance is improved.

According to a second aspect of the present invention, there is provided a radiator with a clip according to the first aspect, wherein the base of the clip is
It is composed of a band-shaped portion having a width smaller than the opening width of the internal enlarged groove, and lateral overhangs formed integrally with the left and right side edges of the belt-like portion, and the width between the tips of the left and right lateral overhangs is formed. The width is wider than the opening width of the internal enlarged groove and narrower than the bottom width.

According to a third aspect of the present invention, in the radiator with the clip according to the first aspect of the present invention, the width of the base portion of the clip in the left-right direction is wider than the opening width of the internal enlarged groove over the entire length thereof and is smaller than the width of the bottom portion. Is also narrow.

According to a radiator with a clip according to a fourth aspect of the present invention, in the first, second or third aspect of the present invention, a through hole is formed in a base portion of the clip, and a through hole is formed in a bottom portion of the internal enlarged groove in the radiator substrate of the radiator. The upper protruding portion is formed integrally, and the clip is temporarily fixed to the heat dissipation board by press-fitting the upper protruding portion into the through hole. In this case, the clip is more reliably held by the radiator. Moreover, since the radiator and the clip are accurately positioned in the front-rear direction and the left-right direction, there is no relative displacement between the two when fixing the radiator to the socket. That is, the CPU can be fixed at an accurate position in both the front-rear direction and the left-right direction.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described.
This will be described with reference to the drawings. In the following description,
Throughout the drawings, the same components and portions are denoted by the same reference numerals, and redundant description will be omitted.

FIG. 1 shows the overall configuration of a radiator with a clip using the radiator of the present invention, FIG. 2 shows a main part thereof, and FIG. 3 shows a clip. FIG. 4 shows a method for holding the clip on the radiator, and FIGS. 5 and 6 show a method for fixing the radiator to the socket.

In FIG. 1, a radiator with a clip is made of an extruded aluminum material having a flat lower surface and an inner enlarged groove (2) formed of a T-shaped groove extending in the front-rear direction on the upper surface. It is provided on each of the left and right sides of the internal expansion groove (2) on the upper surface of the substrate (3) and the heat dissipation substrate (3), and is cut integrally with a gap in the extrusion direction (front-back direction) of the heat dissipation substrate (3) A radiator provided with a fin row (20) composed of a number of tongue-shaped radiating fins (4) formed in a raised shape
(1) and a clip (5) held in the radiator (1) in a state where a part thereof is fitted into the internal enlarged groove (2). The radiating fins (4) constituting each fin row (20) have a substantially arc shape in which a central portion of the height projects forward.

The radiator fins (4) of the radiator (1) are
(3) is formed by cutting and raising a fin-forming ridge extending in the front-rear direction formed together with the extrusion molding.

As shown in FIGS. 1-3, the clip (5)
Is a horizontal base (6) placed in the internal expansion groove (2)
And the front and rear ends of the base portion (6) are formed integrally with each other, and extend obliquely upward toward the front and back in the front-rear direction so as to come out of the internal enlarged groove (2), and the tip is a heat dissipation board (3)
Belt-shaped inclined projections that extend above and to the outside in the front-rear direction
(7) (8) and both belt-shaped inclined protrusions (7), (8) are formed integrally at the tips, respectively, extend downward, and have rectangular through holes (10) (11) at the tips (engagement parts) (12) and (13). The base portion (6) of the clip (5) has an opening width (W1) of the internal expansion groove (2), that is, the internal expansion groove (2) in the heat dissipation board (3).
A front and rear long band (15) having a width smaller than the distance between the tips of the inwardly protruding portions (2a) of the left and right side edges of the opening, and a left and right side edge of the band (15), respectively. It comprises a plurality of, here two lateral overhangs (14) integrally formed at intervals in the direction. The lateral overhangs (14) are located at both front and rear ends of the strip (15). The width (W2) between the distal ends of the left and right lateral overhangs (14) of the clip (5) is larger than the opening width (W1) of the internal enlarged groove (2) and the groove bottom, that is, the internal enlarged groove
The width (W3) of the portion below the inward protrusion (2a) in (2)
(See FIG. 2). The width (W2) between the tips of the left and right lateral overhangs (14) is one of the inner enlarged grooves (2), here, the tip of the lower edge of the right inward protrusion (2a), and the groove bottom. Is smaller than the distance (W4) from the left edge of the image (see FIG. 4). Front and rear strip-shaped inclined protrusions (7) (8) of clip (5)
Has a width in the left-right direction that is equal to the width in the left-right direction of the band portion (15) of the base portion (6). The rear inclined protruding portion (8) is longer than the front inclined protruding portion (7) and is bent obliquely upward in the middle thereof, and its tip is closer to the tip of the front inclined protruding portion (7). Is also located above. The front leg (12) is vertical. The rear leg (13) is inclined forward and downward. The lower ends of the legs (12) and (13) are located below the lower surface of the heat dissipation board (3). In addition, portions of the leg portions (12) (13) below the through holes (10) (11) are slightly bent outward in the front-rear direction. This bent portion is indicated by (12a) and (13a). Clips like this
(5) is manufactured by pressing a thin plate made of spring steel, stainless steel, or the like, and has spring-like elasticity.

The clip (5) is held by the radiator (1) as shown in FIG.

That is, in a state where the clip (5) is inclined so that the base portion (6) is inclined, the left side overhang portion (14) is inserted through the opening of the internal enlarged groove (2). Into the groove bottom below the inward projection (2a). Then, on the other hand, the base portion (6) is returned to a horizontal state so that the right side overhang portion (14) enters the groove bottom below the right inward protrusion portion (2a) through the opening. Thereafter, the clip (5) is shifted to the other side, that is, to the right side overhang portion (14) side, and the ends of the both side overhang portions (14) are positioned outside the inward protrusion portion (2a) in the left-right direction. Thus,
The clip (5) is held by the radiator (1), and the position of the clip (5) with respect to the radiator (1) in the left-right direction is determined.

Next, a method of fixing the radiator (1) to the socket (46) using the clip (5) held by the radiator will be described with reference to FIGS. In FIGS. 5 and 6, the same components and portions as those shown in FIGS. 14 and 15 are denoted by the same reference numerals.

First, a radiator with a clip is tilted obliquely so that the rear end thereof faces downward, and is formed on the rear end face of the socket (46) in the through hole (11) of the rear leg (13). Projection (46
b) is fitted, and the lower edge of the through hole (11) in the leg (13) is engaged with the projection (46b) (see FIG. 5). Next, the front end of the clip (5) is pressed downward, and the rear inclined projection (8) is pressed.
And legs (13), front slope projection (7) and legs (1
2) and elastically deformed, the through hole of the front leg (12)
(10) a projection (46a) formed on the front end surface of the socket (46)
Fit. At this time, the front leg (12) is elastically deformed so as to once open forward by the outwardly bent portion (12a) being pressed by the projection (46a), and the outwardly bent portion (12a) After passing through 46a), the elastic force returns to the original state, the protrusion (46a) fits into the through hole (10), and the lower edge of the through hole (10) in the leg (12) and the protrusion (46a). ) Are firmly engaged. In this way, the heat radiator (1) is fixed to the socket (46) while the heat conductive resin film (not shown) adhered to the lower surface of the heat radiating board (3) is compressed and adhered to the upper surface of the CPU (43). You. At this time, the base portion (6) of the clip (5) is also elastically deformed and bows upward in an arc shape, and as a result, both side projecting portions (14) rise upward from the inwardly protruding portion (2a) of the internal enlarged groove (2). Will be pressed. Therefore, an upward force acts on the radiator (1) and the clip (5), and as a result, both protrusions (4
6a) (46b) and the lower edge of the through holes (10) (11) in the legs (12) (13) of the clip (5) are more firmly engaged, so that the radiator (1) and the clip (5) The detachment from the socket (46) is reliably prevented.

When it is necessary to remove the radiator (1) from the socket (46), such as when replacing the CPU (43), the clip (5) is pressed against the elastic force of the clip (5). The rear end is pressed forward from the rear. Then, the clip (5) moves forward, and as a result, the protrusion (4) on the front end face of the socket (46).
6a) comes out of the through hole (10) of the front leg (12). afterwards,
Pull out the projection (46b) on the rear end face of the socket (46) from the through hole (11) of the rear leg (13). Thus, the radiator (1) is
Removed from (46). Therefore, the removal operation can be performed very easily.

7 to 9 show another embodiment of the radiator with clip according to the present invention.

In this case, a plurality of, here two circular through-holes (21) are formed in the band-like portion (15) of the base portion (6) of the clip (5) at intervals in the front-rear direction. See FIG. 8).
Then, as in the case of the first embodiment described above,
After holding the clip (5) on the radiator (1), insert the circular through hole (2
Using a punch (22) with a slightly smaller diameter than 1),
A punch mark (23) is provided on the bottom surface of the internal enlarged groove (2) through the circular through hole (21). Then, an upwardly projecting burr (24) (upward projection) is formed between the outer peripheral surface of the tip of the punch (22) and the inner peripheral surface of the circular through hole (21). It will be pressed into the circular through hole (21) (see FIG. 7).
Therefore, the clip (5) is more reliably held by the radiator (1). In addition, since the radiator (1) and the clip (5) are accurately positioned in the front-rear direction and the left-right direction, when the radiator (1) is fixed to the socket (46), the relative position between the two is established. There is no displacement, and the radiator (1) can be fixed at an accurate position in both the front-rear direction and the left-right direction with respect to the socket (46), that is, the CPU (43). The other configuration is the same as that of the first embodiment described above, and the radiator (1)
Is fixed to the socket (46).

The radiator (1) is connected to the socket (4) by the clip (5).
When fixed to (6), as shown in FIG. 9, as in the first embodiment, the base (6) of the clip (5) also elastically deforms and bows upward, resulting in a bow. The burr (24) comes out of the circular through hole (21). Therefore, when removing the radiator (1) from the socket (46), attach the clip (5) to the radiator (1).
Can be moved forward with respect to the radiator (1), which does not hinder the removal of the radiator (1).

FIG. 10 shows a third embodiment of a radiator with a clip according to the present invention.

In this case, a large number of pin-shaped radiating fins (25) are integrally formed on the right and left sides of the internal enlarged groove (2) on the upper surface of the radiator (3) of the radiator (1). Other configurations are the same as those of the above-described first embodiment.

The pin-shaped radiating fins (25) are formed by forming a large number of slits in a plate extending in the front-rear direction and extruded integrally with the radiating substrate (3).

In the case of this embodiment, as shown in FIG. 10, it is possible to install a cooling fan (26) on the radiator (1) using the pin-shaped radiating fins (25).

FIG. 11 shows a modification of the clip.

In this case, the band-shaped inclined protrusion (31) formed integrally with the rear end of the base (6) of the clip (30) is symmetrical with the front band-shaped inclined protrusion (7). At the rear end of the belt-shaped inclined projection (31), a vertical leg (3) which is symmetrical with the front leg (12) in the front-rear direction and has a rectangular through hole (32) at the bottom.
3) is formed integrally. Other configurations are the same as those of the clip (5) of the first embodiment.

FIG. 12 shows another modification of the clip.

In this case, the base (6) of the clip (35)
Is a band-shaped portion (15), and a laterally extending portion (36) integrally formed at the center in the front-rear direction at the left and right side edges of the band-shaped portion (15).
And The width between the tips of the left and right lateral overhangs (36) is
It is the same as the width between the distal ends of the side projections (14) of the first embodiment. Other configurations are the same as those of the clip (30) in FIG.

FIG. 13 shows still another modification of the clip.

In this case, the width in the left-right direction of the base portion (39) of the clip (38) is equal over the entire length. The width in the left-right direction of the base portion (39) is the same as the width between the distal ends of the lateral protrusions (14) of the first embodiment. Other configurations are the same as those of the clip (30) in FIG.

Clips (30), (35) and (3) shown in FIGS.
In the case of 8), similarly to the case of the second embodiment,
A circular through hole is formed in the base part (6) (39), and burrs are press-fitted into the hole, so that the clips (30) (35) (38)
(1) can be reliably held.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an overall configuration of a first embodiment of the present invention.

FIG. 2 is an enlarged sectional view taken along line II-II of FIG.

FIG. 3 is a perspective view showing a clip of the heatsink with a clip of FIG. 1;

FIG. 4 is a cross-sectional view corresponding to FIG. 2 showing a method of holding the clip on the radiator in the radiator with clips of FIG. 1;

FIG. 5 is a partially cutaway side view showing a method of fixing the radiator to the socket with the clip in the radiator with a clip of FIG. 1;

FIG. 6 is a partially cutaway side view showing a state in which the radiator is fixed to the socket by the clip in the radiator with the clip of FIG. 1;

FIG. 7 is an enlarged vertical sectional view showing a main part of a second embodiment of the present invention.

FIG. 8 is a perspective view showing a clip used in the radiator with a clip of FIG. 7;

9 is a partially enlarged vertical sectional view showing a state in which the radiator is fixed to the socket by the clip in the radiator with clips of FIG. 7;

FIG. 10 is an exploded perspective view showing an entire configuration of a third embodiment of the present invention.

FIG. 11 is a perspective view showing a modification of the clip.

FIG. 12 is a perspective view showing another modified example of the clip.

FIG. 13 is a perspective view showing still another modified example of the clip.

FIG. 14 is a perspective view showing a state in the middle of a conventional method of fixing a radiator to a socket with a clip.

FIG. 15 is a perspective view showing a state different from FIG. 14 in a conventional method of fixing a radiator to a socket by a clip.

[Explanation of symbols]

 (1): Heat radiator (2): Internal expansion groove (3): Plate-shaped body (4): Heat radiation fin (5) (30) (35) (38): Clip (6) (39): Base ( 7) (8) (31): Inclined projecting part (10) (11) (32): Through hole (engaging part) (12) (13) (33): Leg (14) (36): Side Overhang (15): Strip (21): Circular through hole (24): Burr (upward projection) (43): CPU (44): Package (46): Socket (46a) (46b): Projection

Claims (4)

[Claims] A radiator for radiating heat generated from a CPU having a package, a radiator held by the radiator, and a CP.
A radiator with a clip, comprising: a clip for fixing the radiator to a socket to which U is attached, wherein the radiator has a flat lower surface and an inner enlarged groove formed on an upper surface. And radiating fins provided on the upper surface of the heat radiating board except for the internal expansion groove. Clips are integrally formed on the base portion disposed in the internal expansion groove and on both front and rear ends of the base portion. And a protrusion extending from the inside of the internal enlarged groove so that the tip extends above the heat dissipation board and extends outward in the front-rear direction, and is integrally formed at the tip of each of the protrusions and extends downward, and The clip has a leg portion having an engaging portion that can be engaged with a part of the socket at the tip, and the width of the clip in the left-right direction is wider than the opening width of the internal enlarged groove and smaller than the bottom width. Radiator with clips made part is provided. 2. A base portion of a clip includes a band-shaped portion having a width smaller than an opening width of an internal enlarged groove, and lateral overhangs formed integrally with left and right side edges of the band-shaped portion. The radiator with a clip according to claim 1, wherein the width between the distal ends of the side protrusions is wider than the opening width of the internal enlarged groove and narrower than the bottom width. 3. The width of the base portion of the clip in the left-right direction is
2. The radiator with a clip according to claim 1, wherein the radiator is wider than the opening width of the inner enlarged groove and narrower than the bottom width over the entire length thereof. 4. A through hole is formed in a base portion of the clip, an upper protruding portion is integrally formed on a bottom portion of the internal enlarged groove in the heat dissipation board of the radiator, and the upper protruding portion is press-fitted into the through hole. The radiator with a clip according to claim 1, wherein the clip is temporarily fixed to the heat radiating substrate.