CN1805676A - Radiator and its making method - Google Patents

Radiator and its making method Download PDF

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Publication number
CN1805676A
CN1805676A CN 200510032872 CN200510032872A CN1805676A CN 1805676 A CN1805676 A CN 1805676A CN 200510032872 CN200510032872 CN 200510032872 CN 200510032872 A CN200510032872 A CN 200510032872A CN 1805676 A CN1805676 A CN 1805676A
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CN
China
Prior art keywords
heat
radiator
heat abstractor
pedestal
positive pattern
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN 200510032872
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Chinese (zh)
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CN100484378C (en
Inventor
朱习剑
黄清白
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fuzhun Precision Industry Shenzhen Co Ltd
Hon Hai Precision Industry Co Ltd
Original Assignee
Fuzhun Precision Industry Shenzhen Co Ltd
Hon Hai Precision Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Fuzhun Precision Industry Shenzhen Co Ltd, Hon Hai Precision Industry Co Ltd filed Critical Fuzhun Precision Industry Shenzhen Co Ltd
Priority to CNB2005100328727A priority Critical patent/CN100484378C/en
Publication of CN1805676A publication Critical patent/CN1805676A/en
Application granted granted Critical
Publication of CN100484378C publication Critical patent/CN100484378C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention relates to a hear radiator, which comprises a base and a heat radiation element. Wherein, the heat radiation element is integrated with the base with the foaming material; one side of base has several heat conductive plates which are integrated with the base and through the heat radiation element; the heat radiation element has several cuts. Since the base, the heat conductive plate and the heat radiation element are integrated, the invention can reduce the heat resistance, while the heat conductive plate can transmit the heat to the heat radiation element, and via the large surface of heat radiation element, to improve the heat conductive efficiency. And said cuts can reduce the wind resistance to apply the outer air entering the heat radiation element, to improve the heat radiation effect.

Description

Heat abstractor and manufacture method thereof
[technical field]
The invention relates to a kind of heat abstractor and manufacture method thereof, refer in particular to a kind of heat abstractor and manufacture method thereof that is applied to electronic component.
[background technology]
Along with the fast development of electronics and information industry, electronic component disposal abilities such as central processing unit are strengthened day by day, and the heat of generation all increases with it, and the radiator of its adapted is also in continuous improvement.Traditional radiator generally includes a pedestal and is located at some fin on the pedestal.For promoting the radiating effect of radiator, common mode by the increase radiator surface area increases the heat exchange area between radiator and the air.But be subjected to the restriction of factors such as space, weight and processing, the area of pedestal and on the quantity of fin can not unlimited increase, this makes that the area that carries out heat exchange action between traditional heat-dissipating device and the air is less, influences its radiating effect.
For overcoming traditional heat-dissipating device and air contact area problem of smaller, an industry personage adopts foaming metal (the porous metal material that is made of the skeleton structure and the more hole of solid) to make radiator, utilizes the bigger characteristics of surface area of foaming metal to increase contact area between radiator and the air.The radiator made from foaming metal generally comprises a base plate and is located at a foaming metal on the base plate as foaming aluminium, copper etc., and foaming metal sticks on the base plate by heat-conducting glue.Base plate is passed to foaming metal provided thereon with the heat that absorbs, again by carrying out heat exchange between foaming metal and the air with heat dissipation.Because the surface area of foaming metal is very big, promptly the contact area of foaming metal and air is very big, and air can scatter and disappear the heat of radiator fast.But owing to be to paste by heat-conducting glue between foaming metal and the base plate, heat-conducting glue has certain thermal resistance, is unfavorable for that base plate passes to heat the foaming metal on it rapidly; Simultaneously, the heat on the base plate is not easy to pass to the part away from base plate of foaming metal, makes the portion temperature away from base plate of foaming metal lower, fails to make full use of foaming metal and dispels the heat.In addition, the windage of the foaming metal of this kind radiator is bigger, and it is inner and hinder between extraneous air and the foaming metal and carry out heat exchange to be unfavorable for that extraneous air enters into the foaming metal piece.
[summary of the invention]
The object of the present invention is to provide that a kind of thermal resistance is little, windage is low, area of dissipation is big and good heat abstractor and the manufacture method thereof of radiating effect.
The objective of the invention is to be achieved through the following technical solutions: heat abstractor of the present invention comprises a pedestal and a radiator, and wherein radiator is one-body molded by expanded material and pedestal.In addition, pedestal one side is provided with some heat transfer plates, and heat transfer plate and pedestal are one-body molded and be arranged in the radiator, and radiator is provided with some openings.
The manufacture method of heat abstractor of the present invention may further comprise the steps:
1) provide a positive pattern, the skeleton structure of positive pattern is identical with the skeleton structure of the radiator finished product of the heat abstractor that will make;
2) positive pattern is placed in the pouring container and cooperation with it;
3) the minus material is filled in the positive pattern, the mistake of positive pattern burning is obtained minus mould through heat treatment with hole and positive pattern shape;
4) motlten metal is injected the hole of minus mould, until the metal level that forms the pedestal of a corresponding heat abstractor at minus mould top;
5) remove the minus mould and obtain heat abstractor.
Can pedestal, heat transfer plate and radiator is one-body molded by this method, thus thermal resistance can be reduced; Simultaneously, heat can be delivered on the radiator fast, utilize the big characteristics of radiator surface area again, effectively promote the heat conduction efficiency of heat abstractor by heat transfer plate; In addition, on radiator, offer opening and can reduce windage and be beneficial to extraneous air and enter in the radiator, further promote whole radiating effect.
The invention will be further described in conjunction with the embodiments with reference to the accompanying drawings.
[description of drawings]
Fig. 1 is the cross sectional representation of an embodiment of heat abstractor of the present invention.
Fig. 2 to Fig. 5 is the cross sectional representation of other embodiment of heat abstractor of the present invention.
Fig. 6 is the vertical view of an embodiment of the half-open type hatch frame of having of heat abstractor of the present invention.
Fig. 7 is the vertical view of the embodiment with through-type hatch frame of heat abstractor of the present invention.
Fig. 8 is the positive pattern schematic diagram in the heat abstractor manufacture method of the present invention.
Fig. 9 is the pouring container schematic diagram in the heat abstractor manufacture method of the present invention.
Figure 10 is positive pattern, pouring container and the rib pattern assembling schematic diagram in the heat abstractor manufacture method of the present invention.
Figure 11 is that Figure 10 assembles the back schematic diagram.
Figure 12 is the heat treatment schematic diagram in the heat abstractor manufacture method of the present invention.
Figure 13 is the minus mould schematic diagram in the heat abstractor manufacture method of the present invention.
Figure 14 is the casting metals schematic diagram in the heat abstractor manufacture method of the present invention.
Figure 15 is the finished product schematic diagram in the heat abstractor manufacture method of the present invention.
[embodiment]
Please refer to Fig. 1 and Fig. 7, heat abstractor 1 of the present invention comprises the pedestal 10 that contacts with the electronic component (not shown) and the radiator 20 integrally formed with pedestal 10.For promoting radiating effect, a fan (not shown) can be set near radiator 20, fan can be positioned at radiator 20 tops radiator 20 is carried out top blast; Also can be positioned at radiator 20 1 sides blows side to radiator 20.
Pedestal 10 1 sides are interval with the some heat transfer plates 12 integrally formed with pedestal 10.The cross section of heat transfer plate 12 can be rectangle (as shown in Figures 1 to 4), trapezoidal (as shown in Figure 5), triangle etc. or its combination, and according to the multiple shape of isothermal level condition design to satisfy particular demands.
Radiator 20 is foaming metals of being made by the higher material of the coefficient of heat conduction such as copper, aluminium etc.Above-mentioned heat transfer plate 12 runs through radiator 20 (as shown in Figure 1), and heat transfer plate 12 also can be located in the radiator 20 (as shown in Figure 2).The heat transferred that heat transfer plate 12 absorbs pedestal 10 arrives the part of radiator 20 away from pedestal 10, makes full use of radiator 20 and dispels the heat.
For reducing windage, some openings 22 can be set on radiator 20 at interval, opening 22 can what be that opening 22 runs through radiator 20 (as shown in Figure 7), half-open type be that opening 22 does not run through radiator 20 (as shown in Figure 6) for through-type, also can be both combinations.The cross section of opening 22 can be shape or its combinations (as shown in Figure 3, Figure 4) such as rectangle (as shown in Figure 3, Figure 4), trapezoidal (as shown in Figure 5), triangle.In addition, the degree of depth of opening 22 also can design as required, Fig. 6, Figure 7 shows that two kinds of different structures of the degree of depth of opening 22.
Heat abstractor 1 of the present invention in use, pedestal 10 contacts with electronic component to absorb the heat that electronic component produces; The heat part that pedestal 10 absorbs is directly passed to the radiator 20 that is in contact with it, and another part is delivered on the radiator 20 away from the zone of pedestal 10 by heat transfer plate 12, and heat is reached rapidly on the radiator 20; Again by the heat exchange action between the forced draft of radiator 20 and fan generation with heat dissipation.
Heat abstractor 1 of the present invention can be made by disappearance die casting slurry method, and to shown in Figure 15, its key step comprises as Fig. 8:
1) provide a positive pattern 30, the skeleton structure of positive pattern 30 is identical with the skeleton structure of radiator 20 finished products of the heat abstractor 1 that will make; As shown in Figure 8, positive pattern 30 in the specific embodiment of the present invention is an opening duolateral condensate template, be respectively equipped with some grooves 32 and 34 in positive pattern 30 both sides, and the shape of groove 32 and 34 is identical with the shape of opening 22 on heat transfer plate 12 finished products and the radiator 20 respectively.Shape that can be by changing groove 32 and 34 is to obtain difform heat transfer plate 12 and opening 22, as Fig. 8 and shown in Figure 15, groove 32 and 34 shape of cross section are all trapezoidal, and then the shape of cross section of the opening 22 on heat transfer plate 12 finished products and radiator 20 finished products is trapezoidal.According to actual needs, the plastic rubber substrate that can choose polyurethane foam, porous etc. is made positive pattern 30;
2) provide a pouring container 40, several projections 42 identical with opening 22 shapes and that can cooperate with groove 34 is set in pouring container 40 bottoms.Be appreciated that ground, radiator 20 also can not be provided with opening 22, and correspondingly, groove 32 and 34 can save;
3) provide some prismatic moulds 50 (as shown in figure 10), the shape of prismatic mould 50 is identical with heat transfer plate 12 finished forms and can cooperate with groove 32;
4) positive pattern 30 and prismatic mould 50 are placed in the pouring container 40 successively, the groove 32 and 34 of positive pattern 30 both sides is cooperated, respectively with prismatic mould 50 and projection 42 as Figure 10 and shown in Figure 11;
5) the minus material is filled into the mixture that obtains minus material and positive pattern 30 in the positive pattern 30; As shown in figure 12, through heat treatment positive pattern 30 is burnt and to lose and obtain to have the minus mould 60 of hole, as shown in figure 13, the shape of minus mould 60 is with just pattern 30 is identical; The minus material can be chosen materials such as ceramic mud, gypsum;
6) motlten metal is injected the hole of minus mould 60, thereby form pedestal 10 and heat transfer plate 12 in heat abstractor 1 finished product, as shown in figure 14 until form a metal level at minus mould 60 tops.Motlten metal is chosen the good metal material of heat conductivity such as copper, aluminium etc.; Be appreciated that ground, also can cast earlier a kind of metal such as aluminium, cast again another kind of metal such as copper etc., thus make the pedestal 10 in heat abstractor 1 finished product be copper with heat transfer plate 12, and radiator to be aluminium make;
7) remove minus mould 60 by the concussion method and obtain heat abstractor 1, heat abstractor 1 finished product as shown in figure 15.In addition, also can method such as wash away and remove minus mould 60 by dissolving or water jets under high pressure.
Can pedestal 10, heat transfer plate 12 and radiator 20 is one-body molded by this method, thus the heat conduction efficiency that thermal resistance promotes heat abstractor 1 can be reduced; Simultaneously, can form various dissimilar some openings 22 as required, further promote whole radiating effect to reduce blast.Except that above-mentioned disappearance die casting slurry method, also can make similar structure by methods such as electroforming.

Claims (14)

1. heat abstractor, it comprises a pedestal and a radiator, it is characterized in that: radiator is one-body molded by expanded material and pedestal.
2. heat abstractor as claimed in claim 1 is characterized in that: pedestal and radiator are to be made by different materials.
3. heat abstractor as claimed in claim 1 is characterized in that: pedestal one side is provided with some heat transfer plates, and heat transfer plate and pedestal are one-body molded.
4. heat abstractor as claimed in claim 3 is characterized in that: heat transfer plate wears and places in the radiator.
5. heat abstractor as claimed in claim 3, it is characterized in that: heat transfer plate runs through radiator.
6. as claim 1,2,3,4 or 5 described heat abstractors, it is characterized in that: radiator is provided with some openings.
7. as claim 3,4 or 5 described heat abstractors, it is characterized in that: radiator is provided with some openings, and opening and heat transfer plate are staggered.
8. heat abstractor manufacture method, this heat abstractor comprise a pedestal and make by expanded material, with the integrated radiator of pedestal, may further comprise the steps:
1) provide a positive pattern, the skeleton structure of positive pattern is identical with the skeleton structure of the radiator finished product of the heat abstractor that will make;
2) positive pattern is placed in the pouring container and cooperation with it;
3) the minus material is filled in the positive pattern, the mistake of positive pattern burning is obtained minus mould through heat treatment with hole and positive pattern shape;
4) motlten metal is injected the hole of minus mould, until the metal level that forms the pedestal of a corresponding heat abstractor at minus mould top;
5) remove the minus mould and obtain heat abstractor.
9. heat abstractor manufacture method as claimed in claim 8 is characterized in that: this positive pattern is a kind of in opening duolateral condensate template, polyurethane foam and the porous plastic rubber substrate.
10. heat abstractor manufacture method as claimed in claim 8 is characterized in that: this minus material is a kind of in ceramic mud and the gypsum.
11. as claim 8,9 or 10 described heat abstractor manufacture methods, it is characterized in that: the pouring container bottom is provided with the several projections that can cooperate with positive pattern.
12., it is characterized in that: step 2 as claim 8,9 or 10 described heat abstractor manufacture methods) also comprise some rib patterns that can cooperate with positive pattern are provided, and the rib pattern also placed in the pouring container and with positive pattern cooperate.
13. as claim 8,9 or 10 described heat abstractor manufacture methods, it is characterized in that: the process of in the step 4) motlten metal being injected the minus mould comprises injects the minus mould successively with two kinds of different metals.
14. heat abstractor manufacture method as claimed in claim 8 is characterized in that: the minus mould is removed by at least a method in concussion, dissolving or the water jets under high pressure flushing method.
CNB2005100328727A 2005-01-15 2005-01-15 Method for manufacturing radiator Expired - Fee Related CN100484378C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2005100328727A CN100484378C (en) 2005-01-15 2005-01-15 Method for manufacturing radiator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2005100328727A CN100484378C (en) 2005-01-15 2005-01-15 Method for manufacturing radiator

Publications (2)

Publication Number Publication Date
CN1805676A true CN1805676A (en) 2006-07-19
CN100484378C CN100484378C (en) 2009-04-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2005100328727A Expired - Fee Related CN100484378C (en) 2005-01-15 2005-01-15 Method for manufacturing radiator

Country Status (1)

Country Link
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101330814B (en) * 2007-06-22 2010-11-10 富准精密工业(深圳)有限公司 Radiating device
CN102368482A (en) * 2011-10-10 2012-03-07 李再林 High-efficiency heat sink of porous metal structure
CN102913880A (en) * 2012-11-16 2013-02-06 王宁军 Integrated-type LED (light-emitting diode) light source heat radiating device and preparation method thereof
CN103683634A (en) * 2012-09-12 2014-03-26 庄嘉明 Base with heat-dissipating fin parts, forming method, and motor with base
CN104519168A (en) * 2014-12-12 2015-04-15 镁联科技(芜湖)有限公司 Mobile phone radiating device and machining method thereof
CN105047622A (en) * 2014-05-02 2015-11-11 远东科技大学 Heat transmitting structure, manufacturing method and heat radiating method
CN106623782A (en) * 2016-12-01 2017-05-10 辽宁融达新材料科技有限公司 Method for preparing open pore foamed aluminum through investment casting

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101330814B (en) * 2007-06-22 2010-11-10 富准精密工业(深圳)有限公司 Radiating device
US7913749B2 (en) 2007-06-22 2011-03-29 Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. Thermal module with porous type heat dissipater
CN102368482A (en) * 2011-10-10 2012-03-07 李再林 High-efficiency heat sink of porous metal structure
CN103683634A (en) * 2012-09-12 2014-03-26 庄嘉明 Base with heat-dissipating fin parts, forming method, and motor with base
CN102913880A (en) * 2012-11-16 2013-02-06 王宁军 Integrated-type LED (light-emitting diode) light source heat radiating device and preparation method thereof
CN102913880B (en) * 2012-11-16 2014-04-16 王宁军 Integrated-type LED (light-emitting diode) light source heat radiating device and preparation method thereof
CN105047622A (en) * 2014-05-02 2015-11-11 远东科技大学 Heat transmitting structure, manufacturing method and heat radiating method
TWI588436B (en) * 2014-05-02 2017-06-21 遠東科技大學 Heat transmitting structure as well as manufacturing method and heat dissipation method of the same
CN105047622B (en) * 2014-05-02 2018-03-20 远东科技大学 Heat transfer structure, its manufacture method and its heat dissipating method
CN104519168A (en) * 2014-12-12 2015-04-15 镁联科技(芜湖)有限公司 Mobile phone radiating device and machining method thereof
CN104519168B (en) * 2014-12-12 2018-03-23 佛山市南海鹰毅五金制品厂 Mobile phone heat abstractor and its processing method
CN106623782A (en) * 2016-12-01 2017-05-10 辽宁融达新材料科技有限公司 Method for preparing open pore foamed aluminum through investment casting

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