JP2001250895A - Fixing structure for heat radiator to cpu device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve heat transfer efficiency from a CPU in a CPU device to a heat radiator. SOLUTION: A heat radiator 5 is fixed to a CPU device 4 using a first clip 20 on the heat radiator 5 and a second clip 30 on the CPU device 4. Two inside enlarged channels 17 are formed at a plate-like main body 14 of the heat radiator 5. A base 21 of the first chip 20 is provided inside the enlarged channel 17. Two legs 22 are formed at a base 21. The tip end of each leg 22 is provided with a claw 22a. The second clip 30 comprises two leaf springs 31 and a connection 32 which connects both leaf springs 31. The leaf spring 31 comprises a base 31a, a first inclined part 31b, a horizontal part 31c, and a second inclined part 31d. A slot 33 through which the leg 22 passes is formed at the horizontal part 31c. The legs 22 penetrate the CPU device 4. The leaf spring 31 is elastically deformed so that the legs 22 penetrate the slot 33, for engagement with the edge of the slot 33 at the horizontal part 31c of the leaf spring 31 where the claw 22a is elastically deformed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radiator fixing structure for a CPU device having a CPU-mounted circuit board of a personal computer.

[0002] In this specification, the term "aluminum" includes an aluminum alloy in addition to pure aluminum.

[0003]

2. Description of the Related Art For example, in a desktop personal computer, a connector provided on a printed circuit board called a motherboard in a housing has a CP.
There is a case where a CPU device having a CPU-mounted circuit board on which a U (central processing unit) is mounted is attached. By the way, recently, the multifunction of the personal computer and the speeding up of the processing speed have been remarkable, and as a result, the output of the CPU has increased and the calorific value has also increased remarkably. I have. Therefore, in order to dissipate the heat generated by the CPU, it has been considered to fix a radiator including a heat radiating substrate having one flat surface and a heat radiating fin provided on the other surface of the heat radiating substrate to the CPU device. .

Conventionally, the fixing of the radiator to the CPU device has been performed, for example, as described in Japanese Utility Model Registration No. 3054704. The CPU device described in this publication includes a box-shaped plastic cover and a casing made of an aluminum plate that covers the opening of the cover. The CPU-mounted circuit board is inside the casing, and the CPU is an aluminum plate. They are arranged to be in contact with each other. The fixing of the radiator to such a CPU device is performed using a clip as follows. That is, through holes are formed in the radiator board of the radiator, the aluminum plate and cover of the casing of the CPU device, and the circuit board on which the CPU is mounted. A protrusion is formed on the peripheral surface of the plastic cover of the casing. The clip is provided with two legs, one end of which has an engaging portion for engaging a portion around the through hole of the cover, and the other leg has a distal end. Is formed with a through hole into which the projection of the cover is fitted. Then, the radiator is disposed such that the flat surface of the heat radiating substrate is in close contact with the outer surface of the aluminum plate in the casing of the CPU device. Board, C
It is passed through the through hole of the PU mounting circuit board and the plastic cover, and the engaging portion at the tip of the leg is engaged with the portion around the through hole in the cover, and the cover is further inserted into the through hole at the tip of the other leg. The radiator is fixed to the CPU device by fitting the protrusion on the peripheral surface.

[0005]

However, in the case of the above-described conventional fixing structure, since the clip only engages with the plastic cover, the heat dissipation board of the heat radiator and the aluminum plate of the CPU are brought into close contact with each other. Power is not enough. Therefore, there is a problem that heat transfer efficiency from the CPU of the CPU device to the radiator is low, and as a result, sufficient heat radiation performance cannot be obtained.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and to provide a C
An object of the present invention is to provide a structure for fixing a radiator to a CPU device, which can improve the efficiency of heat transfer from the CPU of the PU device to the radiator.

[0007]

According to the first aspect of the present invention, there is provided a radiator fixing structure for a CPU device, comprising: a radiating substrate having a flat surface on one side; and a radiating fin provided on the other surface of the radiating substrate. Radiator to a CPU device having a circuit board with a CPU mounted thereon, using a first clip disposed on the radiator side and a second clip disposed on the CPU device side. A fixed structure, wherein an internal expansion groove is formed on one surface of a heat dissipation board of the radiator, and the first clip has a band-shaped base portion having a width larger than an opening width of the internal expansion groove and smaller than a bottom width. And a leg portion provided at a right angle to the base portion and having an engaging portion at a distal end portion.
The clip has a spring-like elastic portion with which the engaging portion at the tip of the leg is engaged. The base of the first clip is disposed in the internal enlarged groove, and the leg is moved outward from the internal enlarged groove. The second clip extends and penetrates the CPU device, and the engaging portion at the tip of the leg engages with the spring-like elastic portion of the second clip in an elastically deformed state. It is designed to be biased toward the device.

According to the radiator fixing structure for the CPU device of the first aspect of the present invention, the first clip is held by the radiator by the base portion being disposed in the internal enlarged groove, and the first clip is held by the radiator. The first clip is urged toward the CPU device by engaging the engaging portion at the tip end of the leg of the first clip with the elastically deformed spring-like elastic portion of the second clip.
The radiator is strongly pressed against the CPU device by the elastic force of the spring-like elastic portion. Therefore, the adhesion between the heat dissipation board of the radiator and the CPU device increases, and as a result, the CPU
The efficiency of heat transfer from the CPU of the device to the radiator is improved, and sufficient heat radiation performance is obtained.

According to a second aspect of the present invention, there is provided a radiator fixing structure for a CPU device according to the first aspect of the present invention, wherein two internal enlarged grooves are formed in a radiator substrate of the radiator in parallel with each other at intervals. The base portion of the first clip is disposed in each of the internal enlarged grooves, and two leg portions having a width smaller than the opening width of the internal enlarged groove are integrally formed on the base portion at intervals in the length direction. A folded claw portion is provided at the tip of each leg portion, and the second clip has a width direction oriented in the length direction of the internal enlarged groove, and the second clip is larger than a gap between outer opening edges of the two internal enlarged grooves. It comprises two parallel strip-shaped leaf spring portions having a large length and a connecting portion for connecting both leaf spring portions at a central portion of the length, and each leaf spring portion of the second clip is a cover of the CPU device. Flat base along the outer surface of the Two first inclined portions that are formed integrally with each other and that are inclined so as to move away from the cover toward the distal end side, a horizontal portion that is integrally formed with the distal end of each first inclined portion, A second inclined portion which is formed integrally with the front end of the horizontal portion, is inclined toward the cover toward the front end, and has a front end in contact with the outer surface of the cover of the CPU device; A through-hole through which the leg can pass is formed, and the two leaf springs of the second clip are elastically deformed so that the horizontal part moves toward the cover, so that one leg of the first clip is formed. Are respectively passed through two through holes in one leaf spring portion of the second clip, and the other leg portion is passed through two through holes in the other leaf spring portion of the second clip. But elastically deformed Those that have been engaged with the edge of the through-holes in the horizontal portion of the plate spring portion.

According to a third aspect of the present invention, there is provided a radiator fixing structure for a CPU device according to the first aspect of the present invention, wherein two internal enlarged grooves are formed on a radiator substrate of the radiator in parallel with each other at intervals. A base portion of the first clip is disposed in each of the internal enlarged grooves, and a strip-shaped leg portion having a width smaller than the opening width of the internal enlarged groove is provided on the base portion of each of the first clips.
The width direction is formed integrally with the base portion in the width direction, and a constricted portion is formed in a portion near the tip of the leg portion.
The clip comprises a band-shaped leaf spring having a length greater than the distance between the outer opening edges of the two inner enlarged grooves;
A leaf spring forming a second clip is formed of a base portion extending along the outer surface of the cover of the CPU device, and two ends integrally formed by being connected to both ends of the base portion, and inclined toward the distal end from the cover. An elongated hole having a length longer than the width of the leg of the first clip and having a width larger than the width of the constricted portion is provided on one of the inclined portions. A slit having a width smaller than the width of the leg and wider than the width of the constricted portion extends from one edge of the other inclined portion in the width direction of the second clip. The second clip is arranged so that its length direction is directed to the length direction of the first clip, and the leg of one of the first clips is fitted in the long hole, and the constricted portion is long. Through the hole Is, the second clip, by being rotated around the legs together is elastically deformed, the constricted portion of the first clip leg of the other second
The portion of the leg of the first clip which is inserted into the slit of the clip and which is closer to the distal end than the constricted portion is fitted to the edge of the elongated hole and the edge of the slit in the inclined portion of the second clip elastically deformed. It is engaged.

According to a fourth aspect of the present invention, there is provided a radiator fixing structure for a CPU device according to the first aspect of the present invention, wherein two internal enlarged grooves are formed in a radiator substrate of the radiator in parallel with each other at intervals. A base portion of the first clip is disposed in each of the internal enlarged grooves, and a strip-shaped leg portion having a width smaller than the opening width of the internal enlarged groove is provided on the base portion of each of the first clips.
The width direction is formed integrally with the base portion in the width direction, and a constricted portion is formed in a portion near the tip of the leg portion.
The clip comprises a band-shaped leaf spring having a length greater than the distance between the outer opening edges in the openings of the two internal enlarged grooves, and the leaf spring forming the second clip is provided on a base along the outer surface of the cover of the CPU device. And two inclined portions formed integrally with each other at both ends of the base portion, and inclined toward the distal end side so as to move away from the cover. One of the inclined portions is provided with a leg of the first clip. A first long hole having a length longer than the width and having a width larger than the width of the constricted portion is formed with its length direction directed to the width direction of the second clip, and the other inclined portion has A second elongated hole having a length longer than the width of the leg of one clip is formed with its length direction facing the length direction of the second clip, and the second clip extends in the length direction. Arranged along the length of the first clip And the leg of one of the first clips is passed through the first elongated hole so that the constricted portion comes to a portion corresponding to the elongated hole. Is rotated so that the leg of the other first clip becomes the second leg of the second clip.
The second clip is passed through the elongated hole, and the portions of the two legs of the first clip closer to the distal end than the constricted portions are elastically deformed.
The clip is engaged with the edges of both long holes in the inclined portion of the clip.

According to a fifth aspect of the present invention, there is provided a radiator fixing structure for a CPU device according to the first aspect of the present invention, wherein an internal enlarged groove is formed in a heat radiating substrate of the heat radiator, and a first clip is provided in the internal enlarged groove. A base portion is disposed, and two strip-shaped legs having a smaller width than the base portion are spaced from each other in the length direction on the base portion of the first clip. , A constriction is formed in a portion near the tip of each leg, and the second clip is
A leaf spring comprising a band-shaped leaf spring having a length greater than a distance between both legs of the clip, and forming a second clip,
A base portion extending along the outer surface of the cover of the CPU device, and two inclined portions formed integrally with each other at both ends of the base portion and inclined toward the distal end side so as to move away from the cover; A long hole having a length longer than the width of the leg of the first clip and having a width larger than the width of the constriction is formed with its length direction facing the width direction of the second clip; A slit having a width narrower than the width of the leg and wider than the width of the constricted portion is formed from one side edge of the inclined portion so as to extend in the width direction of the second clip. While being arranged so that the length direction faces the width direction of the first clip,
One leg of the first clip is passed through the long hole such that the constricted portion comes to a portion corresponding to the long hole, and the second clip is elastically deformed and rotated around the leg. As a result, the constricted portion of the other leg of the first clip is inserted into the slit of the second clip, and the portion of the leg of the first clip closer to the distal end than the constricted portion is elastically deformed in the second state. The clip is engaged with the edge of the elongated hole and the edge of the slit in the inclined portion of the clip.

According to a sixth aspect of the present invention, there is provided a radiator fixing structure for a CPU device according to the first aspect of the present invention, wherein an internal enlarged groove is formed in a heat radiating substrate of the radiator, and a first clip of the first clip is provided in the internal enlarged groove. A base portion is disposed, and two strip-shaped legs having a smaller width than the base portion are spaced from each other in the length direction on the base portion of the first clip. The second clip is formed of a band-shaped leaf spring having a length greater than the distance between the two legs of the first clip. Is formed by C
The PU device includes a base portion along the outer surface of the cover, and two inclined portions connected to both ends of the base portion and formed integrally with each other and inclined toward the distal end from the cover. A first elongated hole having a length greater than the width of the leg of the first clip and having a width greater than the width of the constriction is formed with its length direction oriented in the width direction of the second clip. A second elongated hole having a length longer than the width of the leg portion of the first clip is formed in the other inclined portion with its length direction directed toward the length direction of the second clip; The second clip is arranged with its length direction oriented in the width direction of the first clip, and one leg of the first clip is attached to the first elongated hole at a portion where the constricted portion corresponds to the elongated hole. And the second clip is elastically deformed. By being rotated around the legs together, the other leg of the first clip is passed through the second elongated hole of the second clip, and the portions of both legs of the first clip closer to the distal end than the constricted portions are It is engaged with the edges of both elongated holes in the inclined portion of the second clip in an elastically deformed state.

According to a seventh aspect of the present invention, there is provided a radiator fixing structure for a CPU device, comprising: a radiator comprising a heat radiating substrate having a flat surface on one side and radiating fins provided on the other surface of the heat radiating substrate; A radiator fixing structure for fixing the CPU device to the CPU device using first and second two types of clips, wherein the radiator holding frame is fitted around the radiating fins and the radiator is fixed. The holding frame is engaged with at least a part of the peripheral portion of the radiator board of the radiator, and the first clip is provided at a right angle to the base portion in the form of a strip plate and the base portion, and at the tip end portion. The second clip has a spring-like elastic portion with which the engaging portion at the tip of the leg of the first clip engages, and the base of the first clip has a radiator retainer. When along the frame Moni, the pressing frame and its legs C
The first clip is penetrated by the PU device, and the engaging portion at the distal end of the leg is engaged with the spring-like elastic portion of the second clip in an elastically deformed state.
It is designed to be biased toward the PU device.

According to the radiator fixing structure for the CPU device of the invention, the leg portion of the first clip penetrates through the CPU frame and the holding frame engaged with the radiator substrate of the radiator. The first clip is urged toward the CPU device by the engaging portion at the tip of the leg engaging with the elastically deformed spring-like elastic portion of the second clip. The radiator is strongly pressed to the CPU device via the holding frame. Therefore, the adhesion between the heat dissipation board of the radiator and the CPU device increases, and as a result, the CPU
The efficiency of heat transfer from the CPU of the device to the radiator is improved, and sufficient heat radiation performance is obtained.

According to an eighth aspect of the present invention, there is provided a radiator fixing structure for a CPU device according to the seventh aspect of the present invention, wherein two parallel side frame portions of the rectangular radiator holding frame are rectangular. The two heat-dissipating substrates are engaged with two outwardly protruding portions integrally formed on two side edge portions of the heat-dissipating substrate.
The base portions of the first clips are arranged along the above-mentioned two side frame portions of the holding frame, and the base portions of the first clips are spaced apart in the length direction and have a width smaller than that of the base portions. The legs are provided with the width direction thereof oriented in the length direction of the base portion, a constricted portion is formed in a portion near the tip of each leg, and the two first legs are longer than the interval between both legs of the first clip. 2 clips are used, each second clip is made of a band-shaped leaf spring, and the leaf spring forming the second clip is a CPU.
The base portion is formed along the outer surface of the cover of the apparatus, and two inclined portions are formed integrally with each other at both ends of the base portion and are inclined toward the distal end side so as to move away from the cover. An elongated hole having a length longer than the width of the leg of the first clip and having a width larger than the width of the constricted portion is formed with its length direction facing the width direction of the second clip. From one side edge of the slope,
A slit having a width smaller than the width of the leg portion and larger than the width of the constricted portion is formed so as to extend in the width direction of the second clip, and each of the second clips has a length in the first direction.
The clip is arranged so as to face the width direction of the clip, and one leg of each of the first clips is passed through the elongated hole such that the constricted portion comes to a portion corresponding to the elongated hole. Are elastically deformed and rotated about the legs so that the constriction in the other leg of each first clip is inserted into the slit of the second clip and the constriction in the leg of the first clip. A portion closer to the tip end is engaged with the edge of the elongated hole and the edge of the slit in the inclined portion of the second clip in an elastically deformed state.

In a radiator fixing structure for a CPU device according to a ninth aspect of the present invention, in the invention according to the seventh aspect, two side frame portions parallel to each other of the rectangular radiator holding frame are formed in a rectangular shape of the radiator. The two heat-dissipating substrates are engaged with two outwardly protruding portions integrally formed on two side edge portions of the heat-dissipating substrate.
The base portions of the first clips are arranged along the above-mentioned two side frame portions of the holding frame, and the base portions of the first clips are spaced apart in the length direction and have a width smaller than that of the base portions. The legs are provided with the width direction thereof oriented in the length direction of the base portion, a constricted portion is formed in a portion near the tip of each leg, and the two first legs are longer than the interval between both legs of the first clip. 2 clips are used, each second clip is made of a band-shaped leaf spring, and the leaf spring forming the second clip is a CPU.
The base portion is formed along the outer surface of the cover of the apparatus, and two inclined portions are formed integrally with each other at both ends of the base portion and are inclined toward the distal end side so as to move away from the cover. A first elongated hole having a length longer than the width of the leg of the first clip and having a width larger than the width of the constricted portion is formed with its length direction oriented in the width direction of the second clip. A second elongated hole having a length longer than the width of the leg portion of the first clip is formed in the other inclined portion so that the length direction thereof is oriented toward the length direction of the second clip. The second clip is arranged so that its length direction is oriented in the width direction of the first clip, and one leg of each first clip is attached to the first elongated hole, and the constricted portion is attached to the first elongated hole. Each second clip is elastically deformed And by being rotated about the legs, the other leg of each first clip is passed through the second elongated hole of the second clip, and is located closer to the distal end than the constriction in both legs of the first clip. The portions are engaged with the edges of the two elongated holes in the inclined portion of the second clip in a state of being elastically deformed, respectively.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. In the following description, the same components and portions will be denoted by the same reference symbols throughout the drawings, without redundant description.

Embodiment 1 This embodiment is shown in FIGS. In addition,
In this embodiment, the upper and lower sides in FIG. 1 are referred to as upper and lower sides, the left side in FIG. 1 is referred to as front, and the opposite side is referred to as rear. Further, the left and right in FIG. 3 are referred to as left and right.

In FIG. 1, a motherboard (2) is vertically disposed in a housing (1) of a desktop personal computer called a so-called tower type.
A CPU device (4) is mounted in a horizontal state on a connector (3) which is provided on the right side of the motherboard (2) and is long in the front-rear direction. A radiator (5) is fixed to the lower surface of the CPU device (4). A plastic duct (6) is attached to the radiator (5), and a fan (7) attached to the rear end of the duct (6)
The air that has flowed in from the vent (8) formed in the front wall (1a) of the housing (1) enters the duct (6),
It flows inside (6) and flows out from a vent (9) formed in the rear wall (1b).

The CPU device (4) includes a CPU-mounted circuit board (12) on which the CPU (11) is mounted, and a plastic cover (13) that covers the upper side of the CPU-mounted circuit board (12). CP
U (11) is arranged on the lower surface side of the circuit board (12) and is exposed downward (see FIGS. 3 and 4).

The radiator (5) has a flat upper surface as a whole, and has a heat receiving portion (1) at the center thereof in contact with the CPU (11).
Extruded aluminum radiating board provided with 4a) (14)
And provided on the lower surface of the heat dissipation board (14), and the heat dissipation board (14)
It consists of a plurality of tongue-shaped radiating fins (15) integrally formed in a cut-and-raised shape at intervals in the extrusion direction (left-right direction), here five fin rows (15A). These fin rows (15A) extend in the horizontal direction, respectively.
They are provided at an interval in the front-rear direction. Each heat radiation fin (15) has a substantially arc shape in which a central portion of the height protrudes rightward. On the upper surface of the radiator board (14) of the radiator (5), a plurality of internal enlarged grooves (17) formed of T-shaped grooves extending in the left-right direction are formed at intervals in the front-rear direction, here two are formed. . The internal enlarged groove (17) is not limited to the T-shaped groove, and may be a dovetail groove. The radiator fins (15) of the radiator (5) are cut and raised into fin-forming ridges extending in the left-right direction that are formed together when the heat-radiating substrate (14) having the internal enlarged groove (17) is extruded. Is formed.

The radiator (5) is composed of two first clips (20) disposed on the radiator (5) side and a second clip (30) disposed on the CPU device (4) side. And is fixed to the CPU device (4).

The first clip (20) is formed integrally with the horizontal strip-shaped base portion (21) disposed in the internal enlarged groove (17) and spaced apart in the left-right direction from the base portion (21). A plurality of legs, here two legs (22). The width of the base portion (21) is larger than the width between the opening edges of the internal enlarged groove (17) and smaller than the groove bottom, that is, the width of the bottom surface of the internal enlarged groove (17). Internal expansion groove (17) of section (21)
The first clip (20) is held on the heat radiating board (14) of the radiator (5) while preventing the first clip (20) from being pulled out from the inside. Base part
The length of (21) is slightly longer than the length of the internal enlarged groove (17), and a lower bent portion (21a) is integrally formed at the left end thereof.
The lower bent portion (21a) is engaged with the left side surface of the radiator board (14) of the radiator (5), thereby positioning the first clip (20) in the left-right direction and preventing the first clip (20) from slipping to the right. Has been prevented. A cut-and-bent portion (23) is formed in the lower bent portion (21a) so as to project to the left. The right end of the base (21) projects slightly outward from the right side surface of the heat dissipation board (14). This right protrusion is indicated by (21b). 1st clip
The leg portion (22) of (20) has a band shape having a width smaller than the opening width of the internal enlarged groove (17), and is formed with the width direction directed in the front-rear direction. At the upper end of the leg portion (22), a claw portion (22a) (engaging portion) that is folded inward in the left-right direction is provided. The first clip (20) is manufactured by pressing a thin plate made of spring steel, stainless steel, or the like, and has spring-like elasticity.

The second clip (30) has its width direction oriented in the left-right direction and its length direction oriented in the front-rear direction, and is larger than the interval between the opening edges of the two internal enlarged grooves (17) on the front-rear outside. It comprises two parallel strip-shaped leaf spring portions (31) having a length, and a connecting portion (32) for connecting the two leaf spring portions (31) to each other at a central portion of the length. Each leaf spring portion (31) of the second clip (30) is connected to a flat horizontal base portion (31a) along the outer surface of the cover (13) of the CPU device (4), and to both ends of the base portion (31a). Each is formed integrally, and the tip side,
That is, two first inclined portions (31b) inclined upward outward in the front-rear direction, and two first inclined portions (31b) formed integrally with the front end of each first inclined portion (31b) and extending outward in the front-rear direction. The horizontal portion (31c) is formed integrally with the front end of each of the horizontal portions (31c) and is inclined downward outward in the front-rear direction, and the front end of the cover (13) of the CPU device (4) is formed. It comprises two second inclined portions (31d) that abut on the outer surface. A first clip is attached to each of the two horizontal portions (31c) of each leaf spring portion (31).
A slot (33) having a length greater than the width of the legs (22) of (20)
(Through hole) is formed with its length direction facing the front-back direction. The width of the long hole (33) in the left-right direction is the first clip (2
The claw portion (22a) at the tip of the leg portion (22) of (0) is sized so that it can pass in a state of being elastically deformed so as to close.
The second clip (30) is manufactured by pressing a thin plate made of spring steel, stainless steel, or the like, and has spring-like elasticity.

The radiator (5) is operated by the CPU device as follows.
Fixed to (4).

First, the base portion (21) of the first clip (20)
Is inserted through the left end opening into the internal enlarged groove (17) of the radiator board (14) of the radiator (5) from the right end side thereof,
The first clip (20) is held by the radiator (5). Then
Pass the leg (22) of the first clip (20) through the through hole (4a) formed in the CPU device (4) from below, and insert the tip of the leg into the CPU.
It protrudes above the cover (13) of the device (4). At this time, the distance between the tip of the claw (22a) of the leg (22) and the upper surface of the cover (13) is equal to the distance between the lower surface of the base (31a) of the second clip (30) and the horizontal portion.
(31c) The distance from the upper surface is smaller. In addition, radiator (5)
A heat conductive resin film (not shown) is adhered to the heat receiving portion (14a) on the upper surface of the heat radiating substrate (14), and the heat conductive resin film is adhered to the CPU (11) of the CPU device (4). And a CPU device (4).

Next, the second clip (30) is connected to each leaf spring portion.
The upper part of the CPU device (4) is arranged so that the long hole (33) of the horizontal part (31c) of (31) is located directly above each leg (22), and the second clip
By pressing the horizontal portion (31c) of each leaf spring portion (31) of (30) downward, each leg (22) is forcibly inserted into the elongated hole (33). That is, the left leg portions (22) of both the first clips (20) are connected to the two long holes (33) of the left leaf spring portion (31) of the second clip (30).
Then, the right leg (22) is connected to the right leaf spring (3) of the second clip (30).
Forcibly pass through the two slots (33) in 1). At this time, the claw (22a) at the tip of each leg (22) is elastically deformed so as to close once, and returns to the original state after passing through the elongated hole (33). On the other hand, the horizontal portion (31c) of each leaf spring portion (31) of the second clip (30)
Further, the first and second inclined portions (31b) and (31d) are elastically deformed so that the horizontal portion (31c) moves downward from the state shown by the dashed line in FIG. 4 as shown by the solid line. As a result, the claw portion (22a) of the first clip (20) is resiliently deformed, and the elongated hole (33) in the horizontal portion (31c) of the leaf spring portion (31) of the second clip (30) is elastically deformed. The edge is engaged. Thus, the radiator (5) is fixed to the CPU device (4). In this state, the first clip (20) is urged upward, that is, toward the CPU device (4) by the respective leaf spring portions (31) of the second clip (30) elastically deformed. Therefore, the heat receiving portion (14a) of the heat radiating board (14) of the radiator (5) is connected to the CPU device through the heat conductive resin film.
The CPU (4) is strongly adhered to the CPU (11). As a result, the efficiency of heat transfer from the CPU (11) of the CPU device (4) to the radiator (5) is improved, and sufficient heat radiation performance is obtained.

A method of attaching the duct (6) to the radiator (5) will be described below for reference. The duct (6) is attached to the radiator (5) after the radiator (5) is fixed to the CPU device (4).

The front part of the upper wall (6a) of the duct (6) is cut out over the entire width, and the upper wall (6a) is cut off between the upper ends of the left and right side walls (6b) and (6c). The radiator board (14) of the radiator (5) comes to come. A recess (6d) extending vertically and fitting the downwardly bent portion (21a) of the first clip (20) in a portion corresponding to the internal enlarged groove (17) on the inner surface of the left wall (6b) of the duct (6). ) Is formed. Recess (6d)
From the bottom of the left side wall (6b) to the outer side of the first clip (2
0) through-hole into which the cut-and-bent portion (23) of the downwardly protruding portion (21a) fits
(6e) is formed. A first clip (2) is provided on a portion of the right side wall (6c) of the duct (6) corresponding to the internal enlarged groove (17).
An insertion hole (6f) into which the projection (21b) of (0) is inserted is formed. A portion above the insertion hole (6f) at the upper end of the inner surface of the right side wall (6c) of the duct (6) is formed as an inclined surface (6g) inclined upward and rightward.

The duct (6) is provided on the left and right side walls (6) of the portion where the upper wall (6a) is cut out.
b) It is put on the radiator (5) from below so as to be between the upper ends of (6c). At this time, the base (2) of the first clip (20)
The projection (21b) of (1) is on the slope (6c) of the right wall (6c) of the duct (6).
g) and moves downward with respect to the duct (6), so that the right side wall (6c) of the duct (6) is elastically deformed to the right and the protrusion (21)
When b) fits into the insertion hole (6f), the right side wall (6c) returns to its original state due to its own elasticity. On the other hand, the downward bending portion of the base portion (21)
The cut-and-bent portion (23) of (21a) is pushed by the inner surface of the left side wall (6b) of the duct (6) and elastically deforms rightward.When reaching the through hole (6e), the original bent due to its own elasticity. The shape is restored to fit into the through hole (6e), and the upper end thereof is engaged with the upper edge portion of the through hole (6e) in the left side wall (6b). Thus, the duct (6) becomes a radiator (5)
Attached to

Embodiment 2 This embodiment is shown in FIGS. In addition,
Up, down, front and rear, and left and right in this embodiment mean the same direction as in the first embodiment.

In this embodiment, the claw portions (22a) are not provided at the distal ends of the two band-shaped leg portions (22) of the first clip (20), and the distal ends of the two leg portions (22) are not provided. A constricted portion (24) is formed in each of the closer portions. Also, two second clips (40) are arranged on the CPU device (4) side.

Each of the second clips (40) is a band-shaped leaf spring having a length larger than the distance between the opening edges on the front and rear outer sides in both internal enlarged grooves (17) of the heat radiating board (14) of the heat radiator (5). (41). The leaf spring (41) forming the second clip (40) is C
Flat base along the outer surface of the cover (13) of the PU device (4)
(42) and two inclined portions (43) and (44) formed integrally with each other at both ends of the base portion (42) and inclined upward toward the distal end. One inclined portion (43) has a length longer than the width of the leg (22) of the first clip (20) and has a width greater than the width of the constriction (24).
5) is formed with its length direction facing the width direction of the second clip (40). A slit (46) having a width smaller than the width of the leg (22) and wider than the width of the constricted portion (24) is formed on the other inclined portion (44) from one side edge thereof by the second clip. (Four
0) is formed to extend in the width direction. In addition, a long hole
The width of each of (45) and slit (46) is larger than the thickness of each leg (22). The second clip (40) is manufactured by pressing a thin plate made of spring steel, stainless steel, or the like.

The other configuration of the second embodiment is the same as that of the first embodiment.

The radiator (5) is operated by the CPU device as follows.
Fixed to (4).

The attachment of the first clip (20) to the radiator (5) and the combination of the radiator (5) and the CPU device (4) are performed in the same manner as in the first embodiment. The distance between the constricted portion (24) of the leg portion (22) passed through the through hole (4a) of the CPU device (4) and the upper surface of the cover (13) is determined by the second clip (40 ) Base (42) underside and slot (45)
And the gap in the vertical direction with the slit (46).

Then, the second clip (40) is arranged so that its length direction is in the left-right direction and one inclined portion (43) is on the left side. Connect the left leg (22) of the first clip (20) on the rear side with the narrow hole (24)
Pass through to the part corresponding to (45). Then, while rotating the second clip (40) around the constriction (24),
The slit (46) is the left leg (22) of the first clip (20) on the front side.
It is elastically deformed so as to come to a height position corresponding to the constricted portion (24), and the constricted portion (24) is fitted into the slit (46).
The portion of the left leg (22) of each of the first clips (20) closer to the distal end than the constricted portion (24) is connected to one of the inclined portions (43) of the second clip (40) in an elastically deformed state. ) Is engaged with the edge of the long hole (45) and the edge of the slit (46) of the other inclined portion (44), respectively. Thus, the radiator (5) is C
Fixed to the PU device (4). At this time, the second clip (4
0) is the second clip (40) elastically deformed from the state shown by the dashed line in FIG.
The first clip (20) is urged upward, that is, toward the CPU device (4) by the elastic force in the direction indicated by. Therefore, the heat receiving portion (14a) of the heat radiating board (14) of the radiator (5) is strongly adhered to the CPU (11) of the CPU device (4) through the heat conductive resin film. CP of (4)
The heat transfer efficiency from the U (11) to the radiator (5) is improved, and sufficient heat radiation performance is obtained.

Embodiment 3 This embodiment is shown in FIGS. Note that the terms up, down, front and rear, and left and right in this embodiment mean the same direction as in the first embodiment.

In this embodiment, the configuration is the same as that of the second embodiment except for the configuration of the second clip.

The second clip (50) is a band-shaped leaf spring having a length greater than the distance between the opening edges on the inside in the front and rear directions in both internal enlarged grooves (17) of the heat radiating board (14) of the radiator (5). (51) The leaf spring (51) forming the second clip (50) is C
An inverted V-shaped base portion (52) along the outer surface of the cover (13) of the PU device (4), and are formed integrally with each other at both ends of the base portion (52), and are inclined upward toward the distal end. And two inclined portions (53) and (54). A first slot (53) having a length longer than the width of the leg (22) of the first clip (20) and having a width larger than the width of the constriction (24) is formed in one of the inclined portions (53). 55) are formed with their length direction facing the width direction of the second clip (50). Further, the other inclined portion (54) is longer than the one inclined portion (53), and the second inclined hole (54) having a length longer than the width of the leg (22) of the first clip (20). 56)
However, it is formed so that its length direction faces the length direction of the second clip (50). The distance between the slots (55) and (56) is determined by the left leg (22) and the right leg of the front and rear first clips (20).
(22) It is smaller than the interval between each other. In addition, a long hole
The width of (55) and (56) is larger than the thickness of the leg (22). The second clip (50) is manufactured by pressing a thin plate made of spring steel, stainless steel, or the like.

Other configurations in the third embodiment are the same as those in the first embodiment.

The radiator (5) is a CPU device as follows.
Fixed to (4).

The attachment of the first clip (20) to the radiator (5) and the combination of the radiator (5) and the CPU device (4) are performed in the same manner as in the first embodiment. The distance between the constricted portion (24) of the leg portion (22) passed through the through hole (4a) of the CPU device (4) and the upper surface of the cover (13) is equal to the second clip (50) that is not elastically deformed. ) Base (52) lower end and slot (55)
And the gap in the vertical direction with the slit (56).

Then, the second clip (50) is disposed so that its length direction is in the left-right direction and one inclined portion (53) is on the left side. Here, the left leg portion (22) of the first clip (20) on the rear side is passed so that the constricted portion (24) comes to a portion corresponding to the first elongated hole (55). Then, after rotating the second clip (50) around the constricted portion (24), the second elongated hole (56) is moved to the first side in the front-rear direction.
The base portion (52) is elastically deformed so as to contract in the length direction thereof so as to be located at a position corresponding to the left leg portion (22) of the clip (20) (see arrow X in FIG. 12), and the second elongated hole is formed. The left leg (22) is passed through (56) until the constricted portion (24) comes to a height position corresponding to the second elongated hole (56). Thereafter, when the force applied to the second clip (50) is removed, the portion of the leg (22) of the rear first clip (20) closer to the tip than the neck (24) is
The first clip (20), which is elastically deformed, engages the front and rear side edges of the first elongated hole (55) in the first inclined portion (53) of the second clip (50), and the leg of the first clip (20) on the front side. The portion of the second clip (50) in the state of being elastically deformed is the second inclined portion (54) of the second clip (50) in a state where the portion on the tip side of the constricted portion (24) in (22) is
It engages the rear edge of the slot (56). Thus, the radiator (5)
Are fixed to the CPU device (4). At this time, the second clip (50) is elastically deformed from the state shown by the dashed line in FIG.
The first clip (2
0) is urged upward, that is, toward the CPU device (4). Therefore, the heat receiving portion (14a) of the heat radiating board (14) of the radiator (5) is connected to the CPU (1) of the CPU device (4) via the heat conductive resin film.
It is strongly adhered to 1), and as a result, the CPU device (4)
The heat transfer efficiency from the CPU (11) to the radiator (5) is improved, and sufficient heat radiation performance can be obtained.

Embodiment 4 This embodiment is shown in FIGS. Note that the terms up, down, front and rear, and left and right in this embodiment mean the same direction as in the first embodiment.

In the case of this embodiment, the configuration is the same as that of the second embodiment except for the numbers of the first and second clips and the configuration of the first clip.

One internal enlarged groove (17) is formed at the center in the front-rear direction on the upper surface of the radiator (14) of the radiator (5), and the first clip is inserted into the internal enlarged groove (17). The (100) horizontal strip-shaped base portion (21) is fitted. Two legs (101) projecting upward are fixed to the base portion (21) of the first clip (100) with a space in the left-right direction. The leg portion (101) is in the shape of a strip having a smaller width than the base portion (21), and is provided such that the width direction thereof is oriented in the left-right direction. A constricted portion (102) is formed at a portion near the upper end of each leg (101). Leg (101) and neck (1
The dimensions of 02) are the leg (22) and the constriction (24) of the second embodiment.
The dimensions are the same as The first clip (100) is manufactured by pressing a thin plate made of spring steel, stainless steel, or the like, and has spring-like elasticity.

The other configurations in the fourth embodiment are the same as those in the second embodiment.

The attachment of the first clip (100) to the radiator (5) and the combination of the radiator (5) and the CPU (4) are performed in the same manner as in the second embodiment. The neck (102) of the leg (101) passed through the through hole (4a) of the CPU device (4).
The distance between the upper surface of the cover (13) and the lower surface of the base (42) and the slot (4
5) and the gap in the vertical direction with the slit (46).

Then, one second clip (40) is arranged so that its longitudinal direction is in the front-rear direction and one inclined portion (43) is on the front side, and the first clip is inserted into the long hole (45). The left leg (101) of (100) is passed so that the constricted portion (102) comes to a portion corresponding to the long hole (45). Then, the second clip (40)
While rotating it around the constriction (102).
(46) is elastically deformed so as to be at a height corresponding to the constricted portion (102) of the right leg (101), and the constricted portion (102) is fitted into the slit (46). Then, a portion of the leg (101) of the first clip (20) closer to the distal end side than the constricted portion (102) is
The edge of the elongated hole (45) and the other inclined portion (4) of the one inclined portion (43) of the second clip (40) in an elastically deformed state.
Engage with the edge of the slit (46) of 4). Thus, the radiator (5) is fixed to the CPU device (4). At this time, the second clip (40) is elastically deformed as shown by the solid line from the state shown by the dashed line in FIG. 13, and the elastic force of the elastically deformed second clip (40) in the direction shown by the arrow C in FIG. Accordingly, the first clip (100) is urged upward, that is, toward the CPU device (4). Therefore, the heat receiving portion (14) of the heat radiator (14) of the radiator (5)
a) is the C of the CPU device (4) via the heat conductive resin film.
As a result, the heat transfer efficiency from the CPU (11) of the CPU device (4) to the radiator (5) is improved, and sufficient heat radiation performance is obtained.

Although not shown, the second clip (50) of the third embodiment may be used in the fourth embodiment in place of the second clip (40) of the second embodiment.

Embodiment 5 This embodiment is shown in FIGS. In the description of this embodiment, the right side of FIG. 16 is referred to as front, and the opposite side is referred to as rear. FIG.
Up, down, left and right are respectively referred to as up, down, left, and right.

In the case of this embodiment, the connector (3) provided on the motherboard (2) has its longitudinal direction oriented vertically, and the CPU (4) is connected to the
The cover (13) is mounted vertically so that the U (11) faces forward and the cover (13) faces rearward. And the CPU device
An aluminum radiator (60) is fixed to the front of (4).

The radiator (60) is vertically long and has a flat rear surface, and has a heat receiving portion (61b) provided in the center thereof in contact with the CPU (11). A plurality of tongue-shaped radiating fins (62) provided on the front surface of the radiating substrate (61) and formed integrally with the radiating substrate (61) so as to be cut and raised at intervals in the extrusion direction (vertical direction) of the radiating substrate (61); Here, one fin row (62A) is provided. Each of the heat radiation fins (62) has a substantially arc shape in which a central portion of the height protrudes downward.

The radiating fins (62) of the radiator (60) are formed in the same manner as in the first embodiment by forming fin-forming ridges extending in the vertical direction which are formed together with the radiating substrate (61) during extrusion molding. ,
It is formed by cutting and raising.

The duct (63) is introduced into the housing (1) so as to guide air from the radiator (60) side toward an air flow opening (9) formed in the rear wall (1b) of the housing (1). Is provided, and a cooling fan (7) is arranged in an end of the duct (63) on the side of the air circulation port (9). By operating the cooling fan (7), the air outside the housing (1) is moved to the front wall (1a).
After flowing into the housing (1) through the air circulation port (8) of the radiator (60), and passing through the radiation fins (62) of the radiator (60), the air on the rear wall (1b) It is designed to be sent out of the housing (1) from the distribution port (9).

The radiator (60) is arranged on the radiator (60) side.
It is fixed to the CPU device (4) using one first clip (70) and two second clips (40) arranged on the CPU device (4) side.

Around the fin row (62A) of the radiator (60),
An aluminum radiator holding frame (80), which has a rectangular shape that is long in the vertical direction, is fitted and covered from the front, and its left and right side frame portions (80a) are integrated with the radiating board (61) of the radiator (60). It is engaged with the formed outwardly extending portion (61a) in the left-right direction.

Each of the first clips (70) has its width direction oriented in the horizontal direction and its length direction oriented in the vertical direction.
And a strip-shaped base portion (71) along the front surface of both side frame portions (80a) of the holding frame (80), and a plurality of strips that are fixed to the rear surface of the base portion (71) at intervals in the vertical direction and extend rearward. , Here 2
And two legs (72). Leg of first clip (70)
(72) is a band shape having a width smaller than that of the base portion (71), and is provided so that the width direction thereof is oriented in the vertical direction. A constricted portion (73) is formed in a portion near the rear end of each leg (72). The dimensions of the leg (72) and the constriction (73) are the same as the dimensions of the leg (22) and the constriction (24) of the second embodiment. The first clip (70) is manufactured by pressing a thin plate made of spring steel, stainless steel, or the like, and has spring-like elasticity.

The radiator (60) is a CPU device as follows.
Fixed to (4).

First, the legs (72) of the two first clips (70)
Through the through-hole (81) formed in both side frame portions (80a) of the holding frame (80) and the through-hole (4a) formed in the CPU device (4) from the front, and insert the distal end portion thereof into the CPU. Equipment (4)
And the base portion (71) extends along the front surface of both side frame portions (80a) of the holding frame (80). At this time, the neck (73) of the leg (72) and the cover (13)
The space between the rear surface and the rear surface of the second clip (40) in a state in which the second clip (40) is not elastically deformed is smaller than the space between the front surface of the base portion (42) and the elongated hole (45) and the slit (46) in the horizontal direction.
Further, a heat conductive resin film (not shown) is adhered to the heat receiving portion (61b) of the heat radiating substrate (61) of the heat radiator (60), and this heat conductive resin film is brought into close contact with the CPU (11). .

Next, the second clip (40) is arranged so that the length direction thereof is oriented in the left-right direction, and the second clip (40) is inserted into the oblong hole (45) of one of the inclined portions (43). Through the leg portion (72) so that the constricted portion (73) comes to a portion corresponding to the elongated hole (45). Then, while rotating the second clip (40) around the constriction (73), the slit (46) is connected to the other leg (72).
It is elastically deformed so as to come to a position corresponding to the constricted portion (73), and the constricted portion (73) of the leg (72) is fitted into the slit (46). Then, the portion of the leg (72) of each of the first clips (70) closer to the distal end than the constricted portion (73) is connected to one of the inclined portions (4) of the second clip (40) in an elastically deformed state.
3) the edge of the slot (45) and the slit of the other slope (44)
(46), respectively. Thus, the radiator (6
0) is fixed to the CPU device (4). At this time, the second clip (40) is elastically deformed from the state shown by the dashed line in FIG. 18 to the state shown by the solid line, and FIG.
8, the first clip (70) is urged rearward, that is, toward the CPU device (4) by the elastic force in the direction indicated by the arrow D in FIG. Therefore, the heat receiving part (6) of the heat radiator (61) of the radiator (60)
1b) is the C of the CPU device (4) via the heat conductive resin film.
It is strongly adhered to the PU (11), and as a result, the efficiency of heat transfer from the CPU (11) of the CPU device (4) to the radiator (60) is improved, and sufficient heat radiation performance is obtained.

Although not shown, in the above-described fifth embodiment, the second clip (50) of the third embodiment may be used instead of the second clip (40) of the second embodiment.

In the above five embodiments, the CPU device (4) is a CPU mounted circuit board (12) on which a CPU (11) is mounted.
And a plastic cover (13) for covering the upper side of the CPU-mounted circuit board (12). The CPU (11) is disposed on the outer surface side of the circuit board (12). The fixed structure is also applicable to the CPU device described in the above-mentioned utility model registration No. 3054704. In this case, the flat surface of the heat radiation board of the heat radiator is brought into contact with the outer surface of the aluminum plate of the casing of the CPU device.

[Brief description of the drawings]

FIG. 1 is a vertical sectional view schematically showing a personal computer provided with a CPU device to which a radiator is fixed by a radiator fixing structure according to Embodiment 1 of the present invention.

FIG. 2 is a CPU in the personal computer of FIG. 1;
It is a top view which expands and shows the part of an apparatus.

FIG. 3 is a sectional view taken along line JJ of FIG. 2;

FIG. 4 is a sectional view taken along the line KK of FIG. 2;

FIG. 5 is an exploded perspective view showing a method of fixing the radiator to the CPU device according to the first embodiment.

FIG. 6 is a perspective view showing a state in which a radiator is fixed to the CPU device.

FIG. 7 is a vertical sectional view of a main part showing Embodiment 2 of the present invention.

FIG. 8 is an exploded perspective view illustrating a method of fixing a radiator to a CPU device according to a second embodiment.

FIG. 9 is a perspective view showing a method of engaging the second clip with the first clip.

FIG. 10 is a sectional view corresponding to FIG. 7, showing a third embodiment of the present invention;

FIG. 11 is an exploded perspective view illustrating a method of fixing a radiator to a CPU device according to a third embodiment.

FIG. 12 is a perspective view showing a method of engaging the second clip with the first clip.

FIG. 13 is a sectional view, corresponding to FIG. 3, showing a fourth embodiment of the present invention.

FIG. 14 is an exploded perspective view illustrating a method of fixing a radiator to a CPU device according to a fourth embodiment.

FIG. 15 is a perspective view showing a method of engaging the second clip with the first clip.

FIG. 16 is a horizontal sectional view schematically showing a personal computer provided with a CPU device to which a radiator is fixed by a radiator fixing structure according to Embodiment 5 of the present invention.

FIG. 17 is a partially enlarged view of FIG. 16;

FIG. 18 is a sectional view taken along line LL of FIG. 17;

FIG. 19 is a sectional view taken along line MM of FIG. 18;

FIG. 20 is an exploded perspective view showing how to combine the radiator and the first clip.

FIG. 21 is an exploded perspective view showing a method of fixing the radiator to the CPU device.

FIG. 22 is a perspective view showing a state in which a radiator is fixed to the CPU device.

[Explanation of symbols]

 (4): CPU device (5): Heatsink (11): CPU (12): Circuit board with CPU (13): Cover (14): Heatsink board (14a): Heat receiving part (15): Heatsink (15A) ): Fin row (17): Internal enlarged groove (20) (100): First clip (21): Base (22) (101): Leg (22a): Claw (24) (102): Neck Part (30) (40) (50): Second clip (31): Leaf spring part (spring-like elastic part) (31a): Base part (31b): First inclined part (31c): Horizontal part (31d) : Second inclined portion (32): connecting portion (33): elongated hole (through hole) (41): leaf spring portion (spring-like elastic portion) (42): base portion (43) (44): inclined portion ( 45): Slot (46): Slit (51): Leaf spring (spring-like elastic part) (52): Base (53) (54): Inclined (55): First slot (56): Second long hole (60): radiator (61): heat radiating board (61a): outwardly protruding part (62): heat radiating fin (70): first clip (72): leg (73): constricted part ( 80): Heatsink holding frame (80a): Side frame

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Shoji Akutsu 6,224, Kaiyama-cho, Sakai City Showa Aluminum Co., Ltd. F-term (reference) 5E322 AA01 AB04 BA01 BB10 EA11 5F036 BC33

Claims (9)

[Claims] 1. A radiator comprising a radiator substrate having a flat surface on one side and radiator fins provided on the other surface of the radiator substrate is provided on a radiator side of a CPU device having a CPU mounting circuit board. A radiator fixing structure for fixing to a CPU device using the first clip and a second clip disposed on the CPU device side, wherein an internal enlarged groove is formed on one surface of a radiator substrate of the radiator,
A clip has a band-shaped base portion having a width larger than the opening width of the inner enlarged groove and smaller than the bottom portion width, and is provided so as to be perpendicular to the base portion, and has an engaging portion at a distal end portion. The second clip includes a spring-like elastic portion that engages with an engaging portion at the tip of the leg of the first clip, and the base of the first clip is disposed in the internal enlarged groove. At the same time, the leg portion extends outward from the inside of the inner enlarged groove and penetrates the CPU device, and the engaging portion at the tip of the leg portion engages with the spring-like elastic portion of the second clip in an elastically deformed state, A CPU in which the first clip is urged toward the CPU device by the elastically deformed spring-like elastic portion;
A radiator fixing structure to the device. 2. A heat dissipation board of a radiator, wherein two internal enlarged grooves are formed in parallel at a distance from each other, and a base portion of a first clip is arranged in each internal enlarged groove. Two legs having a width smaller than the opening width of the inner enlarged groove are formed integrally at intervals in the length direction,
A folded claw portion is provided at the tip of each leg portion, and the second clip has a length extending in the width direction to the length direction of the inner enlarged groove and larger than a gap between outer opening edges of the two inner enlarged grooves. And a connecting portion connecting the two leaf spring portions at a central portion of the length thereof. Each leaf spring portion of the second clip is formed on an outer surface of a cover of the CPU device. And two first inclined portions formed integrally with each other at both ends of the base portion, and inclined toward the distal end side so as to move away from the cover,
A horizontal portion formed integrally with the front end of each first inclined portion; and a horizontal portion formed integrally with and connected to the front end of each horizontal portion and inclined toward the front end side, and the front end is formed of CP.
A second inclined portion that contacts the outer surface of the cover of the U device,
A through hole through which the leg can pass is formed in the horizontal portion of each leaf spring portion, and both leaf spring portions of the second clip are elastically deformed so that the horizontal portion moves to the cover side. One leg of one clip passes through two through holes in one leaf spring of the second clip, and the other leg passes through two through holes in the other leaf spring of the second clip. 2. A radiator fixing structure for a CPU device according to claim 1, wherein the claw portion at the tip of the leg portion is engaged with an edge of a through hole in a horizontal portion of the leaf spring portion in an elastically deformed state. 3. A heat radiation board of a radiator, wherein two internal enlarged grooves are formed parallel to each other at an interval, and a base portion of a first clip is disposed in each internal enlarged groove.
A strip-shaped leg portion having a width smaller than the opening width of the internal enlarged groove is integrally formed on the base portion of the clip so that its width direction is oriented toward the width direction of the base portion, and a portion near the tip of the leg portion is formed. A constricted portion is formed, and the second clip is formed of a band-shaped leaf spring having a length larger than a distance between outer opening edges of the two inner enlarged grooves, and the leaf spring forming the second clip is provided in the CPU device. A base portion extending along the outer surface of the cover, and two portions formed integrally with each other at both ends of the base portion and inclining away from the cover toward the distal end side;
A slot having a length longer than the width of the leg of the first clip and having a width larger than the width of the constricted portion, and the length direction of the slot is set in the second direction.
A slit formed in the width direction of the clip and having a width smaller than the width of the leg portion and larger than the width of the constricted portion extends from one side edge of the other inclined portion in the width direction of the second clip. The second clip is arranged so that its length direction faces the length direction of the first clip, and the leg portion of one of the first clips has a constricted portion in its long hole. It is passed through the part corresponding to the slot,
The clip is elastically deformed and rotated about the leg, so that the constriction in the leg of the other first clip is inserted into the slit of the second clip and the constriction in the leg of the first clip. 2. A radiator for a CPU device according to claim 1, wherein a portion closer to a tip end than said edge portion is engaged with an edge portion of said elongated hole and an edge portion of said slit in said inclined portion of said second clip elastically deformed. Fixed structure. 4. A heat dissipation board of a radiator, wherein two internal enlarged grooves are formed parallel to each other with an interval therebetween, and a base portion of a first clip is arranged in each internal enlarged groove.
A strip-shaped leg portion having a width smaller than the opening width of the internal enlarged groove is integrally formed on the base portion of the clip so that its width direction is oriented toward the width direction of the base portion, and a portion near the tip of the leg portion is formed. A constricted portion is formed, and the second clip is formed of a band-shaped leaf spring having a length greater than a distance between outer opening edges of the openings of the two inner enlarged grooves, and the leaf spring forming the second clip is formed of a CPU. The base portion is formed along the outer surface of the cover of the apparatus, and two inclined portions are formed integrally with each other at both ends of the base portion and are inclined toward the distal end side so as to move away from the cover. , First
A first elongated hole having a length longer than the width of the leg of the clip and having a width greater than the width of the constricted portion is formed with its length direction oriented in the width direction of the second clip. A second elongated hole having a length longer than the width of the leg of the first clip is formed in the inclined portion so that its length direction is oriented toward the length direction of the second clip. The length direction is arranged toward the length direction of the first clip, and the leg of one of the first clips is inserted into the first elongated hole so that the constricted portion comes to a portion corresponding to the elongated hole. The second clip is elastically deformed and rotated around the leg, so that the leg of the other first clip is passed through the second elongated hole of the second clip, and the two legs of the first clip are passed through. The part on the tip side of the constricted part was elastically deformed Radiator fixing structure to the CPU device of claim 1, wherein the engaged to the edge of both the elongated holes in the second clip of the inclined portion of the state. 5. An internal expansion groove is formed in a heat dissipation board of a radiator, a base portion of a first clip is disposed in the internal expansion groove, and an interval is provided in the base portion of the first clip in a length direction thereof. Two strip-shaped legs having a width smaller than that of the base portion are provided with their width direction directed toward the length direction of the base portion, and a constricted portion is formed in a portion near the tip of each leg portion, The second clip comprises a band-shaped leaf spring having a length greater than the distance between the two legs of the first clip, and the leaf spring forming the second clip comprises a base portion along an outer surface of a cover of the CPU device; And two inclined portions formed integrally with each other at both ends of the portion and inclined away from the cover toward the distal end side, and one of the inclined portions is longer than the width of the leg portion of the first clip. Constriction with length A long hole having a width larger than the width of the second clip is formed with its length direction facing the width direction of the second clip, and a narrower and narrower portion than the width of the leg portion from one side edge of the other inclined portion. The slit having a width wider than the width of
It is formed to extend in the width direction of the second clip,
The second clip is arranged so that its length direction faces the width direction of the first clip, and one leg of the first clip comes to the elongated hole at a portion where the constricted portion corresponds to the elongated hole. And the second clip is elastically deformed and rotated around the leg so that the constriction in the other leg of the first clip is inserted into the slit of the second clip, The portion of the leg of the clip closer to the distal end than the constricted portion is engaged with the edge of the elongated hole and the edge of the slit in the inclined portion of the second clip in an elastically deformed state. C
Heatsink fixing structure to PU device. 6. An internal expansion groove is formed in a heat dissipation board of a radiator, a base portion of a first clip is disposed in the internal expansion groove, and an interval is provided in a length direction of the base portion of the first clip. Two strip-shaped legs having a width smaller than that of the base are provided with the width direction thereof oriented in the length direction of the base, and a constricted portion is formed in a portion near the tip of the leg, The two clips comprise a band-shaped leaf spring having a length greater than the distance between the two legs of the first clip, and the leaf spring forming the second clip comprises a base portion along an outer surface of a cover of the CPU device, and a base portion. And two inclined portions formed integrally with each other at both ends and inclined away from the cover toward the distal end side, and one of the inclined portions has a length longer than the width of the leg portion of the first clip. With a constriction A first elongated hole having a width greater than the width is formed with its length direction facing the width direction of the second clip, and the other inclined portion has a length longer than the width of the leg portion of the first clip. A second elongated hole having a
The second clip is formed so as to face the length direction of the clip, the second clip is arranged with its length direction facing the width direction of the first clip, and one leg of the first clip is inserted into the first elongated hole. The second clip is elastically deformed and rotated around the leg, so that the other leg of the first clip is moved to the second clip. The two clips are passed through the second elongated holes, and the portions of the two legs of the first clip closer to the distal end than the constricted portions are engaged with the edges of the elongated holes of the inclined portion of the second clip in an elastically deformed state. The radiator fixing structure to the CPU device according to claim 1, wherein the radiator fixing structure is combined. 7. A radiator comprising a heat radiating substrate having a flat surface on one side and heat radiating fins provided on the other surface of the heat radiating substrate is provided in a CPU device having a CPU mounting circuit board in first and second types. A radiator fixing structure for fixing to a CPU device using the clip of (1), wherein a radiator holding frame is fitted around the radiating fin, and the radiator holding frame is at least one of a peripheral portion of a radiating substrate of the radiator. A second clip, the first clip comprising: a strip-shaped base portion; and a leg portion provided at a right angle to the base portion and having an engaging portion at a distal end portion. Has a spring-like elastic portion with which the engaging portion at the tip end of the leg of the first clip is engaged. The base of the first clip is along the radiator holding frame, and the leg is provided with the holding frame and Penetrated by CPU device The engaging portion at the distal end of the leg is engaged with the spring-like elastic portion of the second clip in an elastically deformed state, and the first clip is urged toward the CPU device by the elastically deforming spring-like elastic portion. Radiator fixing structure to the CPU device. 8. An outwardly extending portion in which two parallel side frame portions of the rectangular radiator holding frame are integrally formed with two parallel side edge portions of the rectangular radiator substrate of the radiator. And the base portions of the two first clips are arranged along the two side frame portions of the holding frame,
A strip-shaped leg portion having a width smaller than the base portion at intervals in its length direction is provided on the base portion of the clip with its width direction directed toward the length direction of the base portion. A constricted portion is formed at a portion near the distal end, and two second clips longer than the interval between the two legs of the first clip are used, each of the second clips being formed of a band-shaped leaf spring, and a plate forming the second clip. The spring includes a base portion extending along the outer surface of the cover of the CPU device, and two inclined portions formed integrally with each other at both ends of the base portion and inclined toward the distal end from the cover. A long hole having a length longer than the width of the leg of the first clip and having a width larger than the width of the constriction is formed in the inclined portion of the first clip so that its length is directed toward the width of the second clip. And
From one side edge of the other inclined portion, a slit having a width smaller than the width of the leg and wider than the width of the constricted portion is formed so as to extend in the width direction of the second clip.
The clip is disposed so that its length direction is oriented in the width direction of the first clip, and one leg of each first clip comes to a portion corresponding to the long hole in the long hole. And the second clip is elastically deformed and rotated around the leg, so that the constriction in the other leg of each first clip is inserted into the slit of the second clip, A portion of the leg of the first clip closer to the distal end than the constricted portion is engaged with the edge of the elongated hole and the edge of the slit in the inclined portion of the second clip in an elastically deformed state. 7
A radiator fixing structure to the CPU device described in the above. 9. An outwardly projecting portion in which two parallel side frame portions of the rectangular radiator holding frame are integrally formed with two parallel side edge portions of the rectangular radiator substrate of the radiator. And the base portions of the two first clips are arranged along the two side frame portions of the holding frame,
A strip-shaped leg portion having a width smaller than the base portion at intervals in its length direction is provided on the base portion of the clip with its width direction directed toward the length direction of the base portion. A constricted portion is formed at a portion near the distal end, and two second clips longer than the interval between the two legs of the first clip are used, each of the second clips being formed of a band-shaped leaf spring, and a plate forming the second clip. The spring includes a base portion extending along the outer surface of the cover of the CPU device, and two inclined portions formed integrally with each other at both ends of the base portion and inclined toward the distal end from the cover. The first elongated hole having a length longer than the width of the leg portion of the first clip and having a width larger than the width of the constricted portion is formed in the inclined portion of Formed towards the other ramp A second elongated hole having a length longer than the width of the leg portion of the first clip is formed with its length direction facing the length direction of the second clip, and each second clip has its length. The first clip is arranged in such a manner that its lengthwise direction is oriented in the width direction of the first clip, and one leg of each of the first clips is placed in the first elongated hole so that the constricted portion comes to a portion corresponding to the first elongated hole. And each second clip is elastically deformed and rotated around the leg,
The second clip in a state where the other leg of each first clip is passed through the second elongated hole of the second clip, and the portions of both legs of the first clip closer to the distal end than the constricted portions are each elastically deformed. The radiator fixing structure for a CPU device according to claim 7, wherein the radiator is engaged with the edges of the two elongated holes in the inclined portion.