CN2444384Y

CN2444384Y - Radiator for electronic component

Info

Publication number: CN2444384Y
Application number: CN 00242542
Authority: CN
Inventors: 江中鲲
Original assignee: Man Zai Industrial Co Ltd
Current assignee: Man Zai Industrial Co Ltd
Priority date: 2000-08-04
Filing date: 2000-08-04
Publication date: 2001-08-22
Anticipated expiration: 2010-08-04

Abstract

The utility model relates to a radiator through which an electronic element can be fixedly arranged. The radiator is provided with a baseplate, and twp plate surfaces are arranged on the baseplate. A lateral wall is arranged between the twp plate surfaces, and an aluminium fin which is continuously bent is welded on each plate surface and on the lateral wall. Because the aluminium fin is provided with a fin body which has the advantages of light weight, thinness, large heat radiating area, and easy design and production, the design can improve the heat radiating efficiency of the radiator and can simultaneously make a heat radiating part easily produced.

Description

Electronic component radiator

The utility model relates to a kind of electronic component radiator.

The function that radiator mainly designs is to create the radiating surface of maximum area in extremely limited space.In order to reach this project, electronic component radiator 1 had a baseplate part 10 substantially as shown in Figure 1 in the past, but a front face electronic component 2 of this baseplate part 10 sets firmly, and a back plate face one vertically extending of this baseplate part 10 has a plurality of heating panels parallel to each other 11.Some radiator 1 is subjected to the restriction in auto levelizer space in use, and its heating panel 11 and electronic component 2 are provided in a side of on the same plate face.

In order to reach light-weighted purpose, radiator 1 was to be material with the aluminium alloy in the past, and the mode of moulding can adopt die cast or extrusion molding, no matter but be to make in modes such as die cast or extrusion moldings, its purpose all is to form heating panel 11, to improve the area of dissipation of radiator 1.

If radiator 1 was during with the moulding of die casting mode in the past, it no doubt is not subject to folk prescription to same moulding construction, but the where the shoe pinches when making is: the gap that each heating panel is 11 is difficult for dwindling, the height of each heating panel 11 is difficult for increasing, and the thinness of each heating panel 11 is difficult for thin again, be easy to generate little taper during the demoulding, the phenomenon that causes heating panel 11 thickness to differ.Suppose to adopt the extrusion way moulding, though make easily, be subject to the restriction of extruding direction when making, can only form the structure of same moulding, and the gap of 11 of each heating panels also is not easy to dwindle, the thinness of each heating panel 11 is difficult for thin equally again.

In order to increase area of dissipation, the structure that a kind of radiator in the past arranged in addition as shown in Figure 2, just this radiator 1 has a baseplate part 10 equally, the difference of itself and Fig. 1 radiator 1 maximum is: the fin post 12 of outstanding blocks of equi-spaced apart on this baseplate part 10, these fin posts 12 can be formed through cut by blocks of heating panel, also can be through casting forming; Though this kind has the radiator 1 of fin post 12 and has preferable radiating effect in the use, but, it adopt die cast or extrusion molding to come moulding because being still, therefore on making, can produce fin post 12 thickness equally and be difficult for approaching again, and two arrange shortcomings such as 12 distances of fin posts are difficult for dwindling.That is to say that no matter in which way radiator 1 moulding in the past, its manufacturing and using all can produce shortcomings such as the not high and design variation of radiating efficiency is limited.

The purpose of this utility model is, a kind of electronic component radiator that radiating efficiency and its heat radiation position are convenient to manufacture and design that improves is provided.

Radiator of the present utility model is to set firmly for an electronic component, it is to be provided with a front face and a back plate face on a substrate, between forward and backward plate face, has a sidewall, and electronic component is to be installed in wherein on the plate face, wherein weldering has an aluminium fin on substrate, this aluminium fin is that single lamellar body continous way bending forms, having a plurality of welderings with substrate one weldering knot on it becomes attached to, and a plurality of self-brazings radiating part of becoming attached to and extending to away from orientation substrate, between two adjacent radiating parts, be connected with a curved radiating part that prolongs.

The design of borrowing easy extension flakiness of aforementioned aluminium fin and high density Curved Continuous to prolong can improve the radiating efficiency of radiator, and simultaneously because the punch forming easily on making of aluminium fin, therefore, radiating part easily also has variability in design.

Below by most preferred embodiment and accompanying drawing thereof electronic component radiator of the present utility model is elaborated, in the accompanying drawing:

Fig. 1 is a kind of stereogram of electronic component radiator in the past;

Fig. 2 is the another kind of stereogram of electronic component radiator in the past;

Fig. 3 is the stereogram of the utility model first embodiment;

Fig. 4 is the expansion enlarged diagram of the aluminium fin of the utility model first embodiment;

Fig. 5 combines schematic diagram between substrate and the aluminium fin of the utility model first embodiment;

Fig. 6 is the stereogram of the utility model second embodiment;

Fig. 7 is the stereogram of the utility model the 3rd embodiment;

Fig. 8 is the assembled sectional view of the utility model three embodiment;

Fig. 9 is the assembled sectional view of the utility model the 4th embodiment;

Figure 10 is the stereogram of the utility model the 5th embodiment;

For convenience of description, following embodiment, components identical is represented with identical label.

Consult Fig. 3, but the radiator electronic component 30 of present embodiment sets firmly contact, distribute fast with the heat that electronic component 30 runnings are produced.Above-mentioned radiator mainly comprises the substrate 3 of an aluminum, and this substrate 3 has a front face 31 parallel to each other and a back plate face 32, and front face 31 can set firmly for electronic components 30 such as for example integrated circuits, and then plate face 32 surfaces are coated with one deck and weld special-purpose aluminium.On back plate face 32 and set firmly several aluminium fins 4 of bending continuously, certainly, electronic component 30 also can be installed in the position of not establishing aluminium fin 4 on the back plate face 32 in design.

Cooperate and to consult Fig. 4, the aluminium fin 4 of present embodiment one is prolonged the aluminum sheet that is pressed into as thin as a wafer, and its surface is coated with one deck and welds special-purpose aluminium, cuts flow-disturbing wing portion and the hole 41 that forms relief according to designing in the thin slice upper punch.Afterwards, the substrate 3 according to assembly is bent into the curved moulding of continuous snake again, and the bending back becomes attached to 42 in the weldering that aluminium fin 4 one sides form on a snake shape bending and the back plate face 32 of solid welding simultaneously at substrate 3.At weldering 42 the upright radiating parts 43 of becoming attached to away from the suitable distance of a plurality of each intervals of position vertical extent of back plate face 32, connect a curved radiating part 44 that prolongs in 43 ranks of two upright radiating parts, formed the flow-disturbing wing portion of relief on each upright radiating part 43 by punching in advance, and the hole 41 parallel with substrate 3.

See also Fig. 5, the radiator of present embodiment is on making, can design simple and easy metallurgical utensil 5, with the back plate face 32 of radiating fin 4 earlier temporary transient clampings at substrate 3, then the two is sent in the high-temperature soldering stove together, borrow the welding of each element surface preplating to tie, reach the efficient of a body heat transferring with aluminium lamination one weldering in stove, and machine required radiator, and then cut into required size.Certainly, the radiator of present embodiment also can cut into required size earlier on making, and carries out one weldering knot again.

Consult Fig. 6, the radiator of the utility model second embodiment also has a substrate 3 and an aluminium fin 4, this aluminium fin 4 also is solid welding on a back plate face 32 of substrate 3, and aluminium fin 4 also has many welderings vertical with the plate body side and becomes attached to 42, and this weldering is become attached to and 42 can be welded in afterwards on the plate face 32.Weld 42 both sides of becoming attached to two and extend a upright radiating part 43 parallel to each other respectively, connect a curved radiating part 44 that prolongs in two adjacent 61 ranks of upright radiating part, on each upright radiating part 43, offer many holes 41 vertical respectively with substrate 3, borrow weldering to become attached to 42 and the weldering knot of substrate 3, reach the purpose that heat that substrate 3 is born distributes fast via aluminium fin 4.

Consult Fig. 7,8, the radiator of the utility model the 3rd embodiment also has a substrate 3 and an aluminium fin 4, the difference of this embodiment and first embodiment is: the substrate 3 of present embodiment is cylindrical, and at 31,32 sidewalls 33 that form a ring-type of preceding, Hou plate face, above-mentioned aluminium fin 4 is to be that the center is on the sidewall 33 that radial mode is fixed on substrate 3 with cylindrical base 3.In order to prevent 4 distortion of aluminium fin, it is to be installed in simultaneously on the reinforcing sleeve 8 of a circle that aluminium fin 4 outer lateral bendings prolong radiating part 44.The reinforcing sleeve 8 of present embodiment can omit in design, also can keep but reduced width, and is just passable as long as its width can enclose aluminium fin 4.

In addition, the difference of present embodiment and first and second embodiment is that the thickness of aluminium fin 4 and substrate 3 is compatible rather than addition, therefore, present embodiment can dwindle the area of substrate 3 in design, and around aluminium fin 4 is installed in, to be useful on the less electronic product of design requirement, circular simultaneously design also can be vacateed four corners on every side, and other accessories can be installed on the printed circuit board (PCB).

Consult Fig. 9, the radiator of the utility model the 4th embodiment is identical with the 3rd embodiment substantially, all have a columniform substrate 3 and an aluminium fin 4, the only difference of two embodiment is: substrate 3 thickness of the 4th embodiment dwindle, and make aluminium fin 4 outside the sidewall 33 that sets firmly the outstanding what substrate 3 of Hou.

Consult Figure 10, the radiator structure of the utility model the 5th embodiment is identical with the 3rd embodiment, the difference of two embodiment is the shape difference, that is to say, among the 5th embodiment of the present utility model, this substrate 3 and reinforcing sleeve 8 all are square, and aluminium fin 4 then is installed in respectively on four sidewalls 33 of basic 3.

The utlity model has following effect and advantage:

1, aluminium fin of the present utility model is directly made by aluminium flake as thin as a wafer, and therefore, this element is not only frivolous but also can save cost, more can bend out more radiating part easily in a unit are, improves the area of dissipation of radiator whereby.

2, the utility model is used as the aluminium fin of heat dissipation element and is made in advance by prolonging the aluminium flake that is pressed into as thin as a wafer, therefore, easily directly carries out the design and the punching out of flow-disturbing wing portion and hole on the aluminium fin when prefabricated, borrows this hole to promote radiating effect.

3, the utility model manufacturing only needs with simple and easy metallurgical utensil, aluminium fin and substrate are sent in the high-temperature soldering stove together, the welding of borrowing each element surface preplating is with aluminium lamination one weldering knot comprehensively in stove, and no hell and high water degree on making not only can also reach the performance of a body heat transferring.

4, the utility model third and fourth, five embodiment except having above-mentioned 3 effects, also can dwindle the height of combination, be suitable on the thin electronic component of design requirement to be widely used in more.

Claims

1, a kind of electronic component radiator, described radiator can set firmly for an electronic component, and it is to be provided with a front face and a back plate face on a substrate, has a sidewall between forward and backward plate face, it is characterized in that:

Weldering knot one has the aluminium fin of continuous bending on described substrate appropriate location, having the weldering that the weldering of a plurality of one ties on the plate face of back on the described aluminium fin becomes attached to, and the self-brazing radiating part of becoming attached to and extending to away from back plate face direction, be connected with a curved radiating part that prolongs between two adjacent radiating parts.

2, electronic component radiator as claimed in claim 1 is characterized in that: offer a plurality of holes on the described radiating part.

3, electronic component radiator as claimed in claim 1 is characterized in that: described aluminium fin is to be installed on the plate face of substrate.

4, electronic component radiator as claimed in claim 1 is characterized in that: described aluminium fin is to be installed on the sidewall of substrate.

5, electronic component radiator as claimed in claim 4 is characterized in that: described substrate is cylindric, and the aluminium fin is to be that the center is radial arrangement with the substrate.

6, electronic component radiator as claimed in claim 5 is characterized in that: the outer peripheral edges of described aluminium fin are installed with a reinforcing sleeve.