CN100464622C

CN100464622C - Radiator

Info

Publication number: CN100464622C
Application number: CNB2006100607236A
Authority: CN
Inventors: 李冬云; 利民; 杨红成
Original assignee: Fuzhun Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Fuzhun Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2006-05-19
Filing date: 2006-05-19
Publication date: 2009-02-25
Anticipated expiration: 2026-05-19
Also published as: CN101076237A

Abstract

The invention comprises: a radiator and a fastener; said radiator comprises a baseboard and a first fin whose bottom is joint with the top of the baseboard; said fastener has a long and thin body crossing over the top of the baseboard; said first fin located at one side of said long and thin body, and has a first positioning piece used for securing the long and thin body on the top of said baseboard.

Description

Fastener is assembled in method on the heat abstractor in advance

Technical field

The present invention relates to a kind of heat abstractor, particularly a kind of method on the heat abstractor that fastener is assembled in advance that is used to that electronic component dispels the heat.

Background technology

When moving, can produce a large amount of heats such as computer cpu, north bridge chips, the contour power electronic element of video card,, will directly cause temperature sharply to rise, and badly influence the normal operation of electronic component if these heats can not be left effectively.For this reason, need heat abstractor to come these electronic components are dispelled the heat, traditional heat abstractor generally includes radiator and radiator is fixed to fastener on the electronic component.

Chinese patent promptly discloses a kind of typical heat abstractor for ZL02203864.7 number, and it comprises integrated fin (radiator) and two elastomers (fastener).Fin is bent with buckle ear in the fin of central authorities to both sides, and has upwards protruded out lug in root edge.Elastomer has a support division protruding upward in centre, and extends a horizontal base in the both sides of support division, and the base portion end is provided with the cantilever that has buckling parts.Above-mentioned two elastomeric support divisions snap in respectively in the buckle ear of fin both sides of above-mentioned central authorities and the limiting section that lug forms, elastomer and fin can be fitted together preferably to a certain extent.

Along with the power of electronic component constantly increases, its heat radiation requires also more and more higher, and it is not enough that the radiating efficiency of common radiator more and more seems.Increasing area of dissipation is one of effective means that increases radiating efficiency, for this reason, the thickness of normal employing reduction fin and the mode of the spacing between adjacent fin realize the increase of area of dissipation, for example, being welded in to some single thin ribs parallel interval on the substrate (for example, copper coin) promptly is a kind of comparatively effectively means.Yet,, fastener and radiator are fitted together the very difficulty that becomes along with the attenuation of fin thickness and reducing of spacing.

Summary of the invention

In view of this, be necessary to provide a kind of method on the heat abstractor of being assembled in advance that fastener is convenient and firm.

A kind of fastener is assembled in method on the heat abstractor in advance, comprises step:

(A) provide a substrate;

(B) provide a fastener, it has a slender body;

(C) provide a fin, which is provided with a spacer;

(D) slender body with described fastener is crossed on the described substrate;

(E) a described fin is installed on the described substrate, and makes the spacer of this fin be positioned on the slender body.The extended spacer of an above-mentioned fin root edge can make things convenient for fastener and radiator, combine securely.

The invention will be further described below in conjunction with the drawings and specific embodiments.

Description of drawings

Fig. 1 is the structural representation of heat abstractor in the first embodiment of the invention.

Fig. 2 is the vertical view of heat abstractor shown in Figure 1.

Fig. 3 is the exploded view of heat abstractor shown in Figure 1.

Fig. 4 is the partial exploded view of heat abstractor shown in Figure 1.

Fig. 5 is the partial enlarged drawing at A shown in Figure 3 position.

Fig. 6 is the structural representation that has the electronic installation of heat abstractor shown in Figure 1.

Fig. 7 is the exploded view of electronic installation shown in Figure 6.

Embodiment

Fig. 1 to Fig. 5 shows the heat abstractor in the one embodiment of the invention, it is particularly suitable for distributing one and is installed in the heat (as Figure 6 and Figure 7) that the electronic component 4 on the circuit board 3 discharges, and this heat abstractor comprises that a radiator 1 and is used for radiator 1 is fixed to the fastener 2 of fitting with electronic component 4 on the circuit board 3.

As shown in Figure 1 to Figure 3, radiator 1 first fins group 12 and second fins group 14 that comprise a substrate 10 and be arranged side by side in substrate 10 tops.Substrate 10 is used to absorb the heat that electronic component 4 produces, and heat is conducted to first fins group 12 and second fins group 14, and it can adopt copper, material that the aluminium heat conductivility is good to make.First fins group 12 and second fins group 14 are used to distribute the heat that substrate 10 conduction absorb, and fastener 2 is positioned on the substrate 10.

First fins group 12 comprises that some parallel interval are arranged in first fin 121 on the substrate 10, and each first fin 121 all is incorporated into the end face of substrate 10 with root edge.For the ease of assembling, first fin 121 in first fins group 12 is connected with each other in aggregates by the buckle structure 123 that is positioned at four corners.The root edge of outermost one first fin 121a relies on the front side place end face that extends outwardly out and is first spacer 125 of Ω shape substantially in first fins group 12, and certainly, first spacer 125 also can be inverted U-shaped other shape that waits.First spacer 125 comprises first location division 1250 of upwards arching upward and lays respectively at 1252,1254, the first location divisions 1250, first joint portion that 1250 both sides, first location division combine with substrate 10 and defines an opening and first location notch 1256 parallel with the length direction of the first fin 121a down.The root edge of first fin 121a middle part extends outward one first flanging 1218, with the root edge and the contact area of substrate 10 that increases by the first fin 121a, thus raising thermal conductivity between the two.Correspondingly, the root edge of other first fin 121 in first fins group 12 all extends a flanging 1219 in the same way, thereby forms a faying face that combines with substrate 10, with the contact area of increase with substrate 10.

Similar with first fins group 12, second fins group 14 comprises that some parallel interval are arranged in second fin 141 on the substrate 10, and each second fin 141 all is incorporated into the end face of substrate 10 with root edge.And for the ease of assembling, second fin 141 in second fins group 14 also is connected with each other in aggregates by the buckle structure 143 that is positioned at four corners.The root edge of second a fin 141a relative with the first fin 121a in first fins group 12 relies on the rear side place in second fins group 14, the end face that extends outwardly out is second spacer 145 of Ω shape substantially, certainly, second spacer 145 also can be inverted U-shaped other shape that waits.Second spacer 145 comprises second location division 1450 of upwards arching upward and lays respectively at 1452,1454, the second location divisions 1450, second joint portion that 1450 both sides, second location division combine with substrate 10 and defines an opening and second location notch 1456 parallel with the length direction of the second fin 141a down.The root edge of second fin 141a middle part extends outward one second flanging 1418, with the root edge and the contact area of substrate 10 that increases by the second fin 141a, thus raising thermal conductivity between the two.Correspondingly, the root edge of other second fin 141 in second fins group 14 all extends one second flanging 1419 in the same way, thereby forms a faying face that combines with substrate 10, with the contact area of increase with substrate 10.

Again as shown in Figure 3, it is Z-shaped that fastener 2 is substantially, and it can be one-body molded by pliable and tough and resilient material (for example, steel wire, iron wire etc.).Fastener 2 comprises strides the slender body 23 of being located at substrate 10 end faces and the

button arm

21,25 that extends obliquely towards body 23 both sides respectively in slender body 23 ends, and the end of

button arm

21,25 has been bent to form a buckling parts 210,250 respectively.Slender body 23 comprises one first pressure section 230, the stopper section 232 of one second pressure section 234 and between first pressure section 230 and second pressure section 234, and it is inverted U-shaped that stopper section 232 is substantially, and can pass through bending forming.First pressure section 230 and second pressure section 234 are resisted against the end face of substrate 10, and are embedded at respectively in first location notch 1256 and second location notch 1456, thereby fastener 2 and radiator 1 are firmly combined.Stopper section 232 backstops can prevent that slender body 23 from producing axial dipole field between first spacer 125 and second spacer 145.

Above-mentioned heat abstractor is at first striden the slender body 23 of fastener 2 and is located on the substrate 10, and make first pressure section 230 and second pressure section 234 be resisted against the end face of substrate 10 when assembling.Then, first fins group 12 being installed (for example, welding) in a side of slender body 23, makes first spacer 125 of the first fin 121a be positioned on first pressure section 230 of slender body 23.Again second fins group 14 is installed on the opposite side of slender body 23, makes second spacer 145 of the second fin 141a be positioned promptly to finish assembling on second pressure section 234 of slender body 23.

In above-mentioned assembling process, first

joint portion

1252,1254 of first spacer 125 all in conjunction with (for example, welding) in the end face of substrate 10, thereby first pressure section 230 of fastener 2 is incorporated on the substrate 10 securely; Second

joint portion

1452,1454 of second spacer 145 also all in conjunction with (for example, welding) in the end face of substrate 10, thereby second pressure section 234 of fastener 2 is incorporated on the substrate 10 securely.Under the location, fastener 2 can combine with radiator 1 more securely in first spacer 125 and second spacer 145.

As Figure 6 and Figure 7, when above-mentioned heat abstractor was used in an electronic installation, the bottom surface of substrate 10 fitted in the end face of the electronic component 4 that is installed in circuit board 3, and the diagonal position that is positioned at electronic component 4 on the circuit board 3 is established a

clasp

30,32 respectively.In the assembling process, will detain

arm

21,25 respectively and press down, buckling parts 210,250 is cooperated with

clasp

30,32 respectively, thereby radiator 1 closely will be pressed together on the top of electronic component 4.Usually between the end face of the bottom surface of the substrate 10 of radiator 1 and electronic component 4, an amount of heat transfer medium (for example, heat-conducting glue) is set, so that the thermal conductivity between electronic component 4 and the substrate 10 to be provided.

Be understandable that the slender body of above-mentioned fastener is not limited to two pressure sections, for example, it can only be provided with a pressure section at the middle part, and the stopper section is set at the two ends of pressure section, correspondingly, the quantity and the position of the spacer corresponding with the pressure section of fastener also can change.In addition, after also slender body can being bent through multiple tracks, form the pressure section more than three or three.Moreover plural spacer also can be arranged on the same fin, is arranged at respectively on the two relative fins and be not limited to.

Claims

1. one kind is assembled in method on the heat abstractor in advance with fastener, comprises the steps:

(A) provide a substrate;

(B) provide a fastener, it has a slender body;

(C) provide a fin, which is provided with a spacer;

(D) slender body with described fastener is crossed on the described substrate;

(E) a described fin is installed on the described substrate, and makes the spacer of this fin be positioned on the slender body.

2. as claimed in claim 1 fastener is assembled in method on the heat abstractor in advance, it is characterized in that: comprise that step (F) provides another fin, which is provided with a spacer, this another fin is installed on the described substrate, and make its spacer be positioned on the described slender body.

3. as claimed in claim 2 fastener is assembled in method on the heat abstractor in advance, it is characterized in that: described slender body comprises respectively and the spacer of a described fin and corresponding first pressure section and second pressure section of spacer of described another fin that described first pressure section and second pressure section are resisted against the end face of described substrate.

4. as claimed in claim 3 fastener is assembled in method on the heat abstractor in advance, it is characterized in that: described slender body further comprises a stopper section, and this stopper section is between described first pressure section and second pressure section.

5. as claimed in claim 3 fastener is assembled in method on the heat abstractor in advance, it is characterized in that: the spacer of a described fin comprises a location division and the joint portion that is positioned at this location division sidepiece, described location division define one with the parallel and downward opening location notch of a described fin, this location notch matches with first pressure section of described slender body.

6. as claimed in claim 3 fastener is assembled in method on the heat abstractor in advance, it is characterized in that: the spacer of described another fin comprises a location division and the joint portion that is positioned at this location division sidepiece, described location division define one with the parallel and downward opening location notch of described another fin, this location notch matches with second pressure section of described slender body.

7. as claimed in claim 2 fastener is assembled in method on the heat abstractor in advance, it is characterized in that: the end face of the spacer of a described fin and/or the spacer of described another fin is Ω shape substantially.

8. as claimed in claim 2 fastener is assembled in method on the heat abstractor in advance, it is characterized in that: the root edge of a described fin and another fin all extends the flanging that combines with described substrate top surface.

9. as claimed in claim 1 fastener is assembled in method on the heat abstractor in advance, it is characterized in that: a button arm is respectively extended at the two ends of described slender body, and end of each button arm is equipped with a buckling parts.

10. as claimed in claim 9 fastener is assembled in method on the heat abstractor in advance, it is characterized in that: described button arm extends obliquely towards the both sides of described slender body respectively.

11. as claimed in claim 2 fastener is assembled in method on the heat abstractor in advance, it is characterized in that: a described fin and described another fin lay respectively at the both sides of described slender body.

12. as claimed in claim 2 fastener is assembled in method on the heat abstractor in advance, it is characterized in that: comprise that step (G) provides some fins, with a described fin and described another fin combination, form two fins group that lay respectively at described slender body both sides respectively.