CN101862946A - Method for manufacturing hollow ultra-thin radiating fin - Google Patents
Method for manufacturing hollow ultra-thin radiating fin Download PDFInfo
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- CN101862946A CN101862946A CN 201010150973 CN201010150973A CN101862946A CN 101862946 A CN101862946 A CN 101862946A CN 201010150973 CN201010150973 CN 201010150973 CN 201010150973 A CN201010150973 A CN 201010150973A CN 101862946 A CN101862946 A CN 101862946A
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Abstract
The invention discloses a method for manufacturing a hollow ultra-thin radiating fin. The method comprises the following steps of: manufacturing a plate-shaped low-melting-point mould body with a plurality of through holes on the surface by using a shapeable low-melting-point material by a mould forming process; performing surface metallization on the mould body to form a metal film layer so as to obtain a surface-metallized molded part; continuing to perform electroforming on the surface-metallized molded part in an electroforming bath to form an electroformed thin metal layer with high rigidity and obtain the molded part of the thin metal surface layer; cutting and machining the section of the discharged material at the periphery of the molded part of the thin metal surface layer by using a cutting tool so as to expose the mould body at the cut section; and finally heating the obtained product at the temperature which is higher than the melting-point temperature of the mould body to melt the mould body in the thin metal surface layer by a melting demoulding method for the molded part of the cut thin metal surface layer and discharge the material from the cut section to obtain the finished hollow ultra-thin radiating fin which is completely constructed by the thin metal surface layer.
Description
Technical field
The present invention relates to a kind of heat spreader structures of electronic product, particularly the heat radiating fin structure of radiator.
Background technology
The computer CPU microprocessor, light projector will cause the reduction or the accelerated deterioration of operating efficiency with electronic components such as high-capacity LED light emitting module, the heating temp during its work if can't effectively derive; It in the existing structure problem that solves electronic element radiating, with the LED light emitting module is example, as Fig. 1, be that aluminum metal heat-radiating substrate 2 with clustering formula LED light emitting module 1 is attached on the radiating seat 3 of copper metal or aluminum metal, utilize natural air or fan air-supply or cold fluid to reach the purpose of radiating seat 3 heat radiations by the mode of the radiating part 4 (radiating fin) of radiating seat 3; Yet the forming method of existing radiating seat 3 is to get copper or aluminium block material, with metalworking technology, finishes the making of predetermined type body and radiating fin 4 as the mode of cutting or the surperficial milling again of forging is cut; Discuss it for the present for producing radiating fin, need the repeatedly processing action of linear incision (cutting), single angle that can be depleted in a large number from base material, just be enough to determine, the production cost of radiating seat has not had the space and has remake to subtract and fall, because, the radiating effect quality of a radiating seat, almost be that total area of dissipation by whole radiating fins 4 decides, reduce radiating fin 4 height, though material volume reduces before can making processing, loss tails off, and falls but heat dissipation is obviously subtracted; Perhaps, reducing the radiating fin height is not to reduce resource loss, is the heat-generating electronic elements influence that each device integrated planning is caused to product after in conjunction with last radiating seat, and this is for example especially obvious on popular now bulb type LED light fixture product; Both made the radiator or the fin that have frivolous miniaturization on the industry satisfy product design planning demand more flexibly always, but the radiating piece of this form, should have only to have the ventilation of hollow to detour in the heat radiating metal plate, just can possess enough area of dissipations, the performance better heat radiating effect, and must be one-body molded (form the hollow ventilation and detour if dock mutually by the sheet metal more than two, because of its junction surface can influence hot conduction, can't produce due effect), yet, with present metalworking technology, almost do not have any perforate facility, in the metal sheet that can approach, the nonlinear hollow ventilative (ventilation) that processes of one detours, even if having, also must meet under the principle of economic benefit, but volume production, and effect can reach requirement, quality will be stablized, and just possesses industrial utilization.
Summary of the invention
Main purpose of the present invention is that a kind of hollow ultra-thin radiating fin manufacture method is being provided, break through the interior difficulty of conventional thin heat radiating metal plate or can't dig out technical barrier ventilative or that passage detours by the one hollow opening, and can be under the principle of economic benefit that meets low cost of manufacture fully, integrated volume production goes out how much plate appearance hollow ultra-thin radiating fins of stay in grade, heat dispersion excellence for optimum utilization.
For achieving the above object, the technical solution used in the present invention is:
A kind of hollow ultra-thin radiating fin manufacture method is characterized in that: be to get the low melting material of shapeable typing with the mould molding procedure, produce the plate shape low melting point model ontology that the surface has most through holes in mould; At first be that model ontology is made surperficial metalized, make the model ontology surface form metallic diaphragm, obtain the metallized model element in top layer; Then in electrotyping bath, the metallized model element in top layer is carried out electroforming processing handle, make the model ontology surface, increase the electroforming metal thin layer that forms rich rigidity intensity of thickness, and obtain the model element of thin metal surface by original metallic diaphragm; Utilization cuts instrument, and the model element periphery that approaches metal surface is done material processing to cut cross-section, and model ontology is appeared by the section part that cuts; Last only must be again by being higher than the model ontology fusing point and being lower than the heating mode of the temperature of thin metal surface fusing point, the model element of the thin metal surface after cutting, with the fusion stripping means, model ontology is fused in thin metal surface, and, obtain the hollow ultra-thin radiating fin finished product that forms by thin metal surface institute framework fully from cutting the section discharging; Need the radiating piece of the big area of dissipation of frivolous miniaturization on portion's device, to dispel the heat at industry, this law breaks through the interior difficulty of conventional thin heat radiating metal plate or can't dig out technical barrier ventilative or that passage detours by the one hollow opening, and can be under the principle of economic benefit that meets low cost of manufacture fully, integrated volume production goes out how much plate moulding hollow ultra-thin radiating fins of stay in grade, heat dispersion excellence for optimum utilization.
Wherein: described low melting point model ontology, it is the low melt wax material of getting the shapeable typing, hot pressing or pouring type program with mould molding processing, moulding is made in mould, mould simple structure, exploitation easily according to this, make the making of model ontology, have the various geometric modeling altitude maneuver of volume production variability.
Wherein: described low melting point model ontology, be to get low melting point high molecular weight plastic material, shoot mode program with mould molding processing, ejection formation is made in plastic injection forming mold, plastic injection forming mold high stability and high workload efficient on Jet forming machine according to this, make the making of model ontology, more meet the requirement of high qualification rate, high production capacity.
Wherein: described model ontology is made surperficial metalized, is metal material, and the plated film mode with evaporation or sputter plates layer of metal film on the surface of model ontology, and obtains the metallized model element in top layer.
Wherein: the plated film metal material that described evaporation or sputter are used for silver (Ag) or copper (Cu) metal, makes the master mould body surface be formed with the metallic diaphragm of one deck silver (Ag) or copper (Cu).
Wherein: described model ontology is made surperficial metalized, is metal material, with the plating mode of vacuum coating, chemical plating or silver mirror reaction, plates layer of metal film on the surface of model ontology, and obtains the metallized model element in top layer.
Wherein: the electroplating metal material of described vacuum coating, chemical plating or silver mirror reaction for silver (Ag) or copper (Cu) metal, makes the model ontology surface be formed with the metallic diaphragm of one deck silver (Ag) or copper (Cu).
Wherein: the metallized model element in described top layer carries out electroforming processing in electrotyping bath handles, be in described electrotyping bath, to insert copper (Cu) metal material to come metallized model element top layer, target end top layer to carry out electroforming as anode with thermal conductive resin, make the master mould body surface by original metallic diaphragm, the casting that increases thickness forms copper (Cu) matter thin layer, obtains the model element of thin metal surface according to this.
Wherein: utilize the instrument that cuts that the model element of thin metal surface is done material processing to cut cross-section, the described instrument of cutting is provided in a side of the moulding cutting knife on the guillotine, according to this can be at the model element periphery of thin metal layer by guillotine, disposable die-cut section and outlet of determining for the discharging of master mould body.
Wherein: described fusion stripping means, make the master mould body in thin metal surface, fuse discharging, the hollow ultra-thin radiating fin that it is formed by thin metal surface institute framework, be by resulting finished product after dry and the cleaning, relying on the master mould body to fuse after the demoulding discharging finished product internal model construction at the plate body goes out hollow and detours, and the peripheral section that cuts forms the ventilative passage that hollow detours and the external world communicates, no matter be that upper surface or basal surface by hollow ultra-thin radiating fin finished product contacts with thermal source, hollow ultra-thin radiating fin finished product inside and outside, all be the radiating surface of thermal conductance when going out, miniaturization thin slice body according to this produces the radiating effect of excellent properties.
Compared with prior art, the beneficial effect that the present invention has is: need the radiating piece of the big area of dissipation of frivolous miniaturization to dispel the heat on portion's device at industry, this law breaks through the interior difficulty of conventional thin heat radiating metal plate or can't dig out technical barrier ventilative or that passage detours by the one hollow opening, and can be under the principle of economic benefit that meets low cost of manufacture fully, integrated volume production goes out how much plate moulding hollow ultra-thin radiating fins of stay in grade, heat dispersion excellence for optimum utilization.
Description of drawings
Fig. 1 is existing radiating seat structure and a kind of use kenel schematic diagram;
Fig. 2 is a manufacture method schematic flow sheet of the present invention;
Fig. 3 is that the model ontology embodiment sample of manufacture method of the present invention is seen schematic diagram;
Fig. 4 is a kind of enforcement illustration that the surface metalation of manufacture method of the present invention is handled;
Fig. 5 is that the another kind that the surface metalation of manufacture method of the present invention is handled is implemented illustration;
Fig. 6 is a kind of enforcement illustration that the electroforming processing of manufacture method of the present invention is handled;
Fig. 7 is that the model element embodiment sample of the thin metal surface of manufacture method of the present invention is seen schematic diagram;
Fig. 8 is that the hollow ultra-thin radiating fin embodiment sample of manufacture method of the present invention is seen schematic diagram.
Description of reference numerals: light emitting module 1; Heat-radiating substrate 2; Radiating seat 3; Radiating fin 4; Model ontology 10; Through hole 11; Passage 12; The metallized model element 10A in top layer; The model element 10B of thin metal surface; Hollow ultra-thin radiating fin 10C; Electrotyping bath 20.
The specific embodiment
A kind of hollow ultra-thin radiating fin manufacture method as Fig. 2, is to get the low melting material of shapeable typing with the mould molding procedure, as Fig. 3, produces the plate shape low melting point model ontology 10 that the surface has most through holes 11 in mould; As Fig. 2, Fig. 4 or Fig. 5, at first be that model ontology 10 is made surperficial metalized, make model ontology 10 surfaces form metallic diaphragm, obtain the metallized model element 10A in top layer; As Fig. 2, Fig. 6, continue in electrotyping bath 20, the metallized model element 10A in top layer is carried out electroforming processing handle, make model ontology 10 surfaces by original metallic diaphragm, increase the electroforming metal thin layer that forms rich rigidity intensity of thickness,, and obtain the model element 10B of thin metal surface as Fig. 7; As Fig. 2,7, utilize the instrument that cuts, the model element 10B periphery that approaches metal surface is done material processing to cut cross-section, make model ontology 10 appear (figure does not show) by the section part that cuts; At last, as Fig. 2, Fig. 8, only must be again by being higher than model ontology 10 fusing points and being lower than processings of heating (for example: be in the lyolysis groove) of the temperature of thin metal surface fusing point by being higher than model ontology 10 fusing points and being lower than the lysate of the temperature that approaches the metal surface fusing point, the model element 10B of the thin metal surface after cutting, with the fusion stripping means, make model ontology 10 fusion in thin metal surface (or molten molten), and, obtain the hollow ultra-thin radiating fin 10C finished product that forms by thin metal surface institute framework fully from cutting the section discharging; Need the radiating piece of the big area of dissipation of frivolous miniaturization on portion's device, to dispel the heat at industry, this law breaks through the interior difficulty of conventional thin heat radiating metal plate or can't dig out technical barrier ventilative or that passage detours by the one hollow opening, and can be under the principle of economic benefit that meets low cost of manufacture fully, integrated volume production goes out how much plate moulding hollow ultra-thin radiating fin 10C of stay in grade, heat dispersion excellence for optimum utilization.
According to the foregoing description, wherein, as Fig. 2, Fig. 3, described low melting point model ontology 10 is the low melt wax materials that can get the shapeable typing, with the hot pressing or the pouring type program of mould molding processing, moulding is made in mould, mould simple structure, exploitation easily make the making of model ontology 10, the various geometric modeling altitude maneuver of tool volume production variability according to this.
According to the foregoing description, wherein, as Fig. 2, Fig. 3, described low melting point model ontology 10 also can be to get low melting point high molecular weight plastic material (for example PE (polyethylene) and PET (PETG)), with the shoot mode program of mould molding processing, ejection formation is made in plastic injection forming mold, plastic injection forming mold high stability and high workload efficient on Jet forming machine makes the making of model ontology 10 according to this, more meets the requirement of high qualification rate, high production capacity.
According to the foregoing description, wherein, as Fig. 2, Fig. 4, described model ontology 10 is made surperficial metalized, can be metal material, in the plated film mode of evaporation or sputter, surface at model ontology 10 plates layer of metal film, and obtains the metallized model element 10A in top layer; And the plated film metal material that above-mentioned evaporation or sputter are used can make master mould body 10 surfaces be formed with the metallic diaphragm of one deck silver (Ag) or copper (Cu) for silver (Ag) or copper (Cu) metal.
According to the foregoing description, wherein, as Fig. 2, Fig. 5, described model ontology 10 is made surperficial metalized, can be metal material, with the plating mode of vacuum coating, chemical plating or silver mirror reaction, plate layer of metal film on the surface of model ontology 10, and obtain the metallized model element 10A in top layer; The electroplating metal material of above-mentioned vacuum coating, chemical plating or silver mirror reaction can make model ontology 10 surfaces be formed with the metallic diaphragm of one deck silver (Ag) or copper (Cu) for silver (Ag) or copper (Cu) metal.
According to the foregoing description, wherein, as Fig. 2, Fig. 6, the metallized model element 10A in described top layer carries out electroforming processing in electrotyping bath 20 handles, be to insert copper (Cu) metal material to come target (-) end metallized model element 10A top layer, top layer to carry out electroforming in the described electrotyping bath 20 as anode (+) with thermal conductive resin, make master mould body 10 surfaces by original metallic diaphragm, the casting that increases thickness forms copper (Cu) matter thin layer, as Fig. 7, obtain the model element 10B of thin metal surface according to this.
According to the foregoing description, wherein, as Fig. 2, Fig. 7, utilization cuts instrument the model element 10B that approaches metal surface is done material processing to cut cross-section, the described instrument of cutting is can be for being located at the moulding cutting knife on the guillotine, according to this can be at the model element 10B of thin metal layer periphery by guillotine, disposable die-cut section and outlet of determining for 10 dischargings of master mould body.
According to the foregoing description, wherein, as Fig. 2, Fig. 8, described fusion stripping means, make master mould body 10 in thin metal surface, fuse discharging, the hollow ultra-thin radiating fin 10C that it is formed by thin metal surface institute framework, be by resulting finished product after dry and the cleaning, relying on master mould body 10 to fuse after the demoulding discharging finished product internal model construction at the plate body goes out hollow and detours, and the peripheral section that cuts forms the ventilative passage 12 that hollow detours and the external world communicates, no matter be that upper surface or basal surface by hollow ultra-thin radiating fin 10C finished product contacts with thermal source, hollow ultra-thin radiating fin finished product 10C inside and outside, all be the radiating surface of thermal conductance when going out, miniaturization thin slice body according to this produces the radiating effect of excellent properties.
More than explanation is just illustrative for the purpose of the present invention; and nonrestrictive, those of ordinary skills understand, under the situation of the spirit and scope that do not break away from claim and limited; can make many modifications, variation or equivalence, but all will fall within protection scope of the present invention.
Claims (10)
1. a hollow ultra-thin radiating fin manufacture method is characterized in that: be to get the low melting material of shapeable typing with the mould molding procedure, produce the plate shape low melting point model ontology that the surface has most through holes in mould; At first be that model ontology is made surperficial metalized, make the model ontology surface form metallic diaphragm, obtain the metallized model element in top layer; Then in electrotyping bath, the metallized model element in top layer is carried out electroforming processing handle, make the model ontology surface, increase the electroforming metal thin layer that forms rich rigidity intensity of thickness, and obtain the model element of thin metal surface by original metallic diaphragm; Utilization cuts instrument, and the model element periphery that approaches metal surface is done material processing to cut cross-section, and model ontology is appeared by the section part that cuts; Last only must be again by being higher than the model ontology fusing point and being lower than the heating mode of the temperature of thin metal surface fusing point, the model element of the thin metal surface after cutting, with the fusion stripping means, model ontology is fused in thin metal surface, and, obtain the hollow ultra-thin radiating fin finished product that forms by thin metal surface institute framework fully from cutting the section discharging; Need the radiating piece of the big area of dissipation of frivolous miniaturization on portion's device, to dispel the heat at industry, this law breaks through the interior difficulty of conventional thin heat radiating metal plate or can't dig out technical barrier ventilative or that passage detours by the one hollow opening, and can be under the principle of economic benefit that meets low cost of manufacture fully, integrated volume production goes out how much plate moulding hollow ultra-thin radiating fins of stay in grade, heat dispersion excellence for optimum utilization.
2. hollow ultra-thin radiating fin manufacture method according to claim 1, it is characterized in that: described low melting point model ontology, it is the low melt wax material of getting the shapeable typing, hot pressing or pouring type program with mould molding processing, moulding is made in mould, mould simple structure, exploitation easily make the making of model ontology according to this, have the various geometric modeling altitude maneuver of volume production variability.
3. hollow ultra-thin radiating fin manufacture method according to claim 1, it is characterized in that: described low melting point model ontology, be to get low melting point high molecular weight plastic material, shoot mode program with mould molding processing, ejection formation is made in plastic injection forming mold, plastic injection forming mold high stability and high workload efficient on Jet forming machine makes the making of model ontology according to this, more meets the requirement of high qualification rate, high production capacity.
4. hollow ultra-thin radiating fin manufacture method according to claim 1, it is characterized in that: described model ontology is made surperficial metalized, be metal material, plated film mode with evaporation or sputter, surface at model ontology plates layer of metal film, and obtains the metallized model element in top layer.
5. hollow ultra-thin radiating fin manufacture method according to claim 4, it is characterized in that: the plated film metal material that described evaporation or sputter are used, for silver (Ag) or copper (Cu) metal, make the master mould body surface be formed with the metallic diaphragm of one deck silver (Ag) or copper (Cu).
6. hollow ultra-thin radiating fin manufacture method according to claim 1, it is characterized in that: described model ontology is made surperficial metalized, be metal material, plating mode with vacuum coating, chemical plating or silver mirror reaction, surface at model ontology plates layer of metal film, and obtains the metallized model element in top layer.
7. hollow ultra-thin radiating fin manufacture method according to claim 6, it is characterized in that: the electroplating metal material of described vacuum coating, chemical plating or silver mirror reaction, for silver (Ag) or copper (Cu) metal, make the model ontology surface be formed with the metallic diaphragm of one deck silver (Ag) or copper (Cu).
8. hollow ultra-thin radiating fin manufacture method according to claim 1, it is characterized in that: the metallized model element in described top layer carries out electroforming processing in electrotyping bath handles, be in described electrotyping bath, to insert copper (Cu) metal material to come metallized model element top layer, target end top layer to carry out electroforming as anode with thermal conductive resin, make the master mould body surface by original metallic diaphragm, the casting that increases thickness forms copper (Cu) matter thin layer, obtains the model element of thin metal surface according to this.
9. hollow ultra-thin radiating fin manufacture method according to claim 1, it is characterized in that: utilize the instrument that cuts that the model element of thin metal surface is done material processing to cut cross-section, the described instrument of cutting is provided in a side of the moulding cutting knife on the guillotine, according to this can be at the model element periphery of thin metal layer by guillotine, disposable die-cut section and outlet of determining for the discharging of master mould body.
10. hollow ultra-thin radiating fin manufacture method according to claim 1, it is characterized in that: described fusion stripping means, make the master mould body in thin metal surface, fuse discharging, the hollow ultra-thin radiating fin that it is formed by thin metal surface institute framework, be by resulting finished product after dry and the cleaning, relying on the master mould body to fuse after the demoulding discharging finished product internal model construction at the plate body goes out hollow and detours, and the peripheral section that cuts forms the ventilative passage that hollow detours and the external world communicates, no matter be that upper surface or basal surface by hollow ultra-thin radiating fin finished product contacts with thermal source, hollow ultra-thin radiating fin finished product inside and outside, all be the radiating surface of thermal conductance when going out, miniaturization thin slice body according to this produces the radiating effect of excellent properties.
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| CN 201010150973 CN101862946A (en) | 2010-04-19 | 2010-04-19 | Method for manufacturing hollow ultra-thin radiating fin |
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| CN 201010150973 CN101862946A (en) | 2010-04-19 | 2010-04-19 | Method for manufacturing hollow ultra-thin radiating fin |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108193236A (en) * | 2017-12-20 | 2018-06-22 | 广东工业大学 | A kind of micro-mould manufacturing method based on UV-LIGA technologies |
| CN110043529A (en) * | 2019-05-15 | 2019-07-23 | 扬州力液德机械有限公司 | A kind of high efficiency and heat radiation protective cover for hydraulic cylinder |
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| CN101254579A (en) * | 2008-02-01 | 2008-09-03 | 黄崇贤 | Column-shaped method for producing radiator |
| JP2008304157A (en) * | 2007-06-11 | 2008-12-18 | Panasonic Corp | Heat exchanger and its manufacturing method |
| CN100479977C (en) * | 2006-01-23 | 2009-04-22 | 旭宏科技有限公司 | Manufacturing method of heat sink |
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2010
- 2010-04-19 CN CN 201010150973 patent/CN101862946A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100479977C (en) * | 2006-01-23 | 2009-04-22 | 旭宏科技有限公司 | Manufacturing method of heat sink |
| JP2008304157A (en) * | 2007-06-11 | 2008-12-18 | Panasonic Corp | Heat exchanger and its manufacturing method |
| CN101254579A (en) * | 2008-02-01 | 2008-09-03 | 黄崇贤 | Column-shaped method for producing radiator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108193236A (en) * | 2017-12-20 | 2018-06-22 | 广东工业大学 | A kind of micro-mould manufacturing method based on UV-LIGA technologies |
| CN110043529A (en) * | 2019-05-15 | 2019-07-23 | 扬州力液德机械有限公司 | A kind of high efficiency and heat radiation protective cover for hydraulic cylinder |
| CN110043529B (en) * | 2019-05-15 | 2023-08-25 | 扬州力液德机械有限公司 | Efficient heat dissipation protective cover for hydraulic cylinder |
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Open date: 20101020 |