CN2447939Y

CN2447939Y - Luminium-copper welded radiator

Info

Publication number: CN2447939Y
Application number: CN 00248351
Authority: CN
Inventors: 万正丰
Original assignee: Man Zai Industrial Co Ltd
Current assignee: Man Zai Industrial Co Ltd
Priority date: 2000-09-25
Filing date: 2000-09-25
Publication date: 2001-09-12
Anticipated expiration: 2010-09-25

Abstract

The utility model relates to a radiator combined by a welding method. In the radiator, an aluminium radiating fin for heat dispersion is combined with a copper base material, wherein the aluminium radiating fin comprises a plurality of combining parts combined with the copper base material and radiating parts extending to the direction away from the copper base material. In order to combine the aluminium radiating fin with the copper base material conveniently and improve the efficiency of heat conduction, a welding laminated layer made of the aluminium composite material is arranged between the aluminium radiating fin and the copper base material, and both sides of the welding laminated layer are respectively and fixedly welded with the copper base material and the radiating fin.

Description

The aluminum bronze welded radiator

The utility model relates to a kind of aluminum bronze welded radiator, particularly relates to a kind of radiator that aluminium radiator fin can be welded on the copper base material.

Existing electronic component distributes fast for the heat that produces that will turn round, and can install the radiator that can contact with electronic component in the inside of machine additional; Though the above-mentioned radiator that is assembled on the different electronic goods can change over different forms in response to needs, its function all is: improve radiating effect; In order to reach the effect of aforementioned expection, in existing skill, the radiator that has directly comes die cast base material and fin with aluminium, have plenty of on a copper base material aluminium radiator fin is set, the radiator that this kind is made of copper base material and aluminium radiator fin is effect such as light and copper good heat radiating with aluminium.But, the place of not complying with one's wishes is also arranged,

For example consult Fig. 1, it is a kind of end view of radiator in the past, radiator 1 comprised in the past: a copper base material 11 and an aluminium radiating seat 12, wherein has a smooth basal plane 121 on the aluminium radiating seat 12, these basal plane 121 both sides of the edge are extended two vertical walls 122 parallel to each other respectively downwards, extend upward a plurality of aluminium radiator fins parallel to each other 123 on basal plane 121 tops, and this copper base material 11 is embedded hang down 122 on walls of basal plane 121 and two at aluminium radiating seat 12; In existing skill, because directly welding difficulty between aluminum material and copper material, therefore, in order to make this copper base material 11 be combined in the bottom of aluminium radiating seat 12, general feasible mode is to cohere with cements such as heat-conducting glue or epoxy resin at the position that both fit, this kind juncture is because the conductive coefficient of heat-conducting glue and epoxy resin is poor, therefore, can shadow leads the heat-conducting effect of 12 of copper base material 11 and aluminium radiating seats.

It is simple and easy that the purpose of this utility model provides a kind of processing, and have the aluminum bronze welded radiator of preferable heat conduction benefit.

Aluminum bronze welded radiator of the present utility model comprises:

One copper base material, it has a top layer; And

At least one aluminium radiator fin, made by the aluminum thin plate, have at least one joint portion on it, and from the joint portion to a radiating part that extends away from copper base material direction; Wherein:

Be provided with a wlding lamella between the top layer of this copper base material and the joint portion of this aluminium radiator fin, above-mentioned wlding thin slice series of strata are made by aluminium composite material, its top layer solid welding near the one side of copper base material and this copper base material is combined into one, and it is combined into one away from the one side of this copper base material and joint portion solid welding on the aluminium radiator fin.

Below by most preferred embodiment and accompanying drawing aluminum bronze welded radiator of the present utility model is described in detail:

Fig. 1 is a kind of end view of radiator in the past.

Fig. 2 is the combination of side view of the utility model first preferable possible embodiments.

Fig. 3 is the three-dimensional exploded view that the utility model first preferable possible embodiments is made required element.

Fig. 4 is the combination front view of the utility model second preferable possible embodiments.

Fig. 5 is the assembled sectional view of the utility model second preferable possible embodiments.

Consult Fig. 2, the radiator 3 of present embodiment is a kind of design of assisting electronic element radiating, this radiator 3 includes a copper base material 31, this copper base material 31 is tabular bodies, material can be fine copper or copper alloy, be preferable wherein with fine copper, above-mentioned copper base material 31 has one first flat top layer 311 parallel to each other and one second flat top layer 312, above the first flat top layer 311, be provided with one and prolong molded aluminium radiator fin 35 by the aluminum thin plate, have several on the whole contour curved joint portions 351 of prolonging on the described aluminium radiator fin 35, in each 351 left and right sides, joint portion respectively to extend a radiating part 352 away from the direction of copper base material 31,352 ranks of two adjacent radiating parts connect a convergence part 353, on each radiating part 352, offer the upright perforation of a lot of 354 respectively, in the outwards outstanding again fin 355 of perforation 354 lateral margins, promote the radiating effect of radiating part 352 whereby.

Present embodiment is in order to reach the effect of expection, be provided with a wlding lamella 30 on the first flat top layer 311 of

copper base material

31 and 351 of the joint portions of aluminium radiator fin 35, above-mentioned wlding lamella 30 is aluminium composite materials, its concrete example is: alpax can make copper base material 31, aluminium radiator fin 35 be combined into one with 30 solid weldings of wlding thin layer by the weldering knot.

Cooperate Fig. 3, the radiator 3 of present embodiment during fabrication, at first helping layer 33 in the coating one on one first faying face 321 of a wlding thin slice 32, on one second faying face 322 of this wlding thin slice 32, be coated with and help layer 34, the described upper and

lower layer

33,34 that helps all is the compound of hydrogen, aluminium, chlorine, is coated with the upper and lower purpose of

layer

33,34 that helps to be: destroy metal surface to form welding atmosphere; Again aforementioned combination is seated on the first flat top layer 311 of copper base material 31, and put aluminium radiator fin 35 above the layer 34 last helping, and the joint portion 351 that makes aluminium radiator fin 35 is resisted against and helps layer 33 tops, utilizing not shown smelting tool that entire radiator 3 is sent in the heating furnace heats, the heating-up temperature of this heating furnace generally is controlled between 500 ℃～700 ℃, temperature controlling is mainly decided on the object size, and aforementioned welding also can manual type be processed; When radiator 3 is sent into heating furnace and is heated, the upper and

lower layer

33,34 that helps that is coated on the wlding thin slice 32 can destroy copper base material 31 and aluminium radiator fin 35 top layers, to form welding atmosphere, and wlding thin slice 32 can be because of heat fused, be consolidated into one with destroyed copper base material 31 in top layer and aluminium radiator fin 35 melting welding, and form this wlding lamella 30, it is simple and easy to reach processing whereby, and can make

copper base material

31 and 35 of aluminium radiator fins can produce preferable thermal conduction effect.

Consult Fig. 4,5, the radiator 4 of this embodiment also has a copper base material 41, a wlding lamella 42 and an aluminium radiator fin 43; Wherein this copper base material 41 is the rounded columns of a section, on column, has a cylinder top layer 411, and wlding lamella 42 is exactly to coat cylinder top layer 411,43 of aluminium radiator fins are to be the curved deflection shape that prolongs, its each joint portion 431 that is bent to form is to borrow wlding lamella 42, and mode is welded knot on the cylinder top layer 411 of copper base material 41 radially; Outer peripheral edges at this aluminium radiator fin 43 coat a big envelope 44, the length that this big envelope 44 coats roughly is half of aluminium radiator fin 43 width, the fan that makes an auxiliary heat dissipation whereby in the running, the hot gas that electronic component produced be subjected to earlier big envelope 44 stop rectification after, leading edge and the periphery by radiator 4 sheds again; Borrow change and aluminium radiator fin 43 radial distribution weldering knots of aforementioned copper base material 41 shapes, can get a desired effect equally.

By above explanation as can be known, the wlding lamella that the utility model utilizes an aluminium composite material to make comes in conjunction with copper base material and aluminium radiator fin, it not only in like product unprecedented innovation, as long as this design utilizes the clamping of smelting tool to send in the heating furnace adding man-hour, or weld with manual type, just can finish the step of welding processing, wlding lamella owing to the aluminium composite material moulding is able in heating process firmly in conjunction with copper base material and aluminium radiator fin simultaneously, and its heat conduction benefit and copper, aluminium is close, therefore, this design also can improve the heat conduction benefit of radiator.

Claims

1, a kind of aluminum bronze welded radiator, it comprises:

One copper base material, it has a top layer; And

At least one aluminium radiator fin is made of the aluminum thin plate, has at least one joint portion on it, and from the joint portion to a radiating part that extends away from copper base material direction; It is characterized in that:

Be provided with a wlding lamella between the top layer of this copper base material and the joint portion of this fin, above-mentioned wlding thin slice series of strata are made by aluminium composite material, its top layer solid welding near the one side of copper base material and this copper base material is combined into one, and it is combined into one away from the one side of this copper base material and joint portion solid welding on the aluminium radiator fin.

2, aluminum bronze welded radiator as claimed in claim 1, it is characterized in that: hold in the mouth even mat one convergence part respectively the position away from the joint portion on the adjacent in twos radiating part of this aluminium radiator fin, to constitute the lamellar body of a bending, on each radiating part and offer at least one perforation, the outwards outstanding respectively fin that forms of each perforated side.

3, aluminum bronze welded radiator as claimed in claim 1 is characterized in that: this copper base material is one to have the tabular body of break even chart layer.

4, aluminum bronze welded radiator as claimed in claim 1 is characterized in that: this copper base material is a cylinder, and this wlding lamella is to be coated on the cylinder top layer of copper base material, and this aluminium radiator fin is to be installed in radially on this cylinder top layer.