CN202403584U - Multi-chamber phase-change temperature equalization board - Google Patents
Multi-chamber phase-change temperature equalization board Download PDFInfo
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- CN202403584U CN202403584U CN2012200121303U CN201220012130U CN202403584U CN 202403584 U CN202403584 U CN 202403584U CN 2012200121303 U CN2012200121303 U CN 2012200121303U CN 201220012130 U CN201220012130 U CN 201220012130U CN 202403584 U CN202403584 U CN 202403584U
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- aluminium alloy
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- uniforming plate
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Abstract
The utility model discloses a multi-chamber phase-change temperature equalization board. The multi-chamber phase-change temperature equalization board comprises an aluminum alloy lower shell, a plurality of aluminum foam boards and an aluminum alloy upper shell, wherein the aluminum alloy lower shell is provided with a plurality of chambers; the aluminum foam boards are mounted in the chambers in the aluminum alloy lower shell so as to form a plurality of aluminum foam chambers; and the aluminum alloy upper shell buckles and seals the aluminum alloy lower shell. According to the multi-chamber phase-change temperature equalization board, the chambers which are completely and independently sealed are formed inside the temperature equalization board, so that the reliable redundancy is realized, and the heat transfer needs of a plurality of heat sources can be met.
Description
Technical field
The utility model relates to a kind of temperature-uniforming plate.
Background technology
Develop rapidly along with industries such as electronics, IT, communication, LED, solar energy; Wherein the heating power of used electronic element is also improving constantly; Heat flow density significantly promotes; Utilize traditional radiating subassembly to be difficult to well solve relevant hot arraign topic, particularly in heat radiation fields such as IGBT (Insulated Gate Bipolar Transistor, insulated gate bipolar transistor), communication power amplifier, high-power LED street lamps.
The many radiating modes of traditional heat radiation with the thermal source radiation fin; Heat exchange through hot fin and air loses heat; But because its structure space, material heat-transfer character and restrictions such as heat radiation module weight, structural strength and reliability, traditional radiating mode can't satisfy radiating requirements when running into high-power, high heat flux.Simultaneously, for the high power consumption heat radiation of IGBT, communication and military project electronics field, the reliability of radiator and redundancy are the emphasis that must consider.
The operation principle of tradition phase transformation temperature-uniforming plate (Vapor Chamber) is as shown in Figure 1, and modular design is all formed single seal chamber by airtight housing 1, wick and working solution, is pumped into 1.3 * (10 in will managing
-2～10
3) fill with an amount of hydraulic fluid after the negative pressure of Pa, make to seal after being full of liquid in the wick capillary wick of being close to cavity inner wall.One end of cavity is evaporator section (bringing-up section), and the other end is condensation segment (cooling section).Liquid carburation by evaporation when one end of cavity is heated in the capillary wick, steam are emitted heat and are condensed into liquid in steam channel 3, flowing to the other end under the small pressure reduction, and liquid leans on capillary force or acting in the fluid passage 4 of gravity to flow back to evaporator section.So circulate endlessly, heat reaches the other end by the end of Vapor Chamber.
The heat flow density of tradition Vapor Chamber can reach 200W/cm2～300W/cm2, and its thermal resistance is 0.03W/ ℃～0.08W/ ℃, and the relatively hot pipe has bigger hot transmission quantity, and can satisfy the radiating requirements of multiple spot thermal source.But traditional temperature-uniforming plate generally has only a seal chamber, if temperature-uniforming plate local damage or inefficacy; With the problem that causes all electronic components (thermal source) of contacting with temperature-uniforming plate normally to dispel the heat; Especially in equipment such as military project electronics, communication, often be the normal operation of assurance equipment, will increase corresponding redundancy protecting measure in the cover system; When one of them power amplifier at circuit; Or IGBT is when going wrong, and the circuit of Redundancy Design or power supply will substitute the parts that gone wrong, to guarantee the normal use of communication or power-supply system.
If the shared single cavity temperature-uniforming plate of all these heater elements just can't reach the redundant purpose of reliability, for this reason, be badly in need of a kind of novel redundant multi-cavity body phase transformation temperature-uniforming plate of research and development.
The utility model content
The purpose of the utility model is to provide a kind of multi-cavity body phase transformation temperature-uniforming plate, can solve the shared single cavity temperature-uniforming plate of all heater elements in the cover system better and can't reach the redundant problem of reliability.
According to an aspect of the utility model, a kind of multi-cavity body phase transformation temperature-uniforming plate that provides comprises:
Aluminium alloy lower house with a plurality of cavitys;
Be installed in a plurality of cavitys in the aluminium alloy lower house to form a plurality of aluminum foam plates of a plurality of aluminum foam cavitys;
Fasten and seal the aluminium alloy upper shell on the said aluminium alloy lower house.
Further, said aluminium alloy lower house comprises:
Substrate;
Be positioned at said substrate edges and be higher than the sidewall of said substrate;
Be fixed on the said substrate and be positioned at the supporting construction that being used within the sidewall forms said a plurality of cavitys.
Further, said sidewall is processed with sealed step.
Further, height such as said sealed step and said supporting construction.
Further, said aluminium alloy upper shell has the welding groove that matches with said supporting construction, and the welding side with inclination angle that matches with said sealed step.
Further, said supporting construction is snakelike supporting construction, also can be the supporting construction of other shape.
Further, be marked with the working medium that is used for phase-change heat transfer in said a plurality of aluminum foam cavity.
Compared with prior art, beneficial effect of the present invention is: the present invention has realized that reliability is redundant, and can satisfy the heat transfer demand of a plurality of thermals source through at a plurality of independent sealed cavitys fully of the inner formation of temperature-uniforming plate.
Description of drawings
Fig. 1 is traditional phase transformation temperature-uniforming plate fundamental diagram that prior art provides;
Fig. 2 is the aluminium alloy lower house structure chart that the embodiment of the invention provides;
Fig. 3 is the aluminium alloy upper shell structure chart that the embodiment of the invention provides;
Fig. 4 is the aluminum foam that cuts out that the embodiment of the invention the provides composition that hardens;
Fig. 5 is the composition that hardens of the aluminum foam after the compacting that provides of the embodiment of the invention;
Fig. 6 is the aluminium alloy lower house assembly assumption diagram that the embodiment of the invention provides;
Fig. 7 is the Al-alloy casing Welding Structure figure that the embodiment of the invention provides;
Fig. 8 is the application sketch map of the multi-cavity body phase transformation temperature-uniforming plate that provides of the embodiment of the invention.
Description of reference numerals: 1-housing; The 2-capillary structure; The 3-steam channel; The 4-fluid passage; 51a-first cavity; 51b-second cavity; 51c-the 3rd cavity; 51d-the 4th cavity; The 52a-first aluminum foam plate; The 52b-second aluminum foam plate; 52c-the 3rd aluminum foam plate; 52d-the 4th aluminum foam plate; The 53a-first aluminum foam cavity; The 53b-second aluminum foam cavity; 53c-the 3rd aluminum foam cavity; 53d-the 4th aluminum foam cavity; The 6-sidewall; The 7-supporting construction; The 8-sealed step; 9-welds side; 10-welds groove; The 11-fabrication hole; 12-limit seam groove; 13a-first thermal source; 13-second thermal source; 13c-the 3rd thermal source.
The specific embodiment
, should be appreciated that following illustrated preferred embodiment only is used for explanation and explains the present invention, and be not used in qualification the present invention a preferred embodiment of the present invention will be described in detail below in conjunction with accompanying drawing.
Be example with four cavitys below, in conjunction with like Fig. 2 to Fig. 7, the structure of said multi-cavity body phase transformation temperature-uniforming plate be described in detail.
Through the aluminium extrusion process or utilize the CNC process technology; Produce the aluminium alloy lower house of multi-cavity body phase transformation temperature-uniforming plate with aluminium alloy plate, said aluminium alloy lower house comprises substrate, be positioned at said substrate edges and be higher than said substrate sidewall, be fixed on the said substrate and be positioned at the supporting construction that being used within the sidewall forms said a plurality of cavitys.With four cavitys is example; As shown in Figure 2; Said aluminium alloy lower house is divided into four cavitys with three snakelike supporting constructions 7 wherein with said aluminium alloy lower house, forms the aluminium alloy lower house with the first cavity 51a, the second cavity 51b, the 3rd cavity 51c and the 4th cavity 51d.Wherein, said supporting construction 7 not only can make the phase transformation equalizing plate structure strengthen, and, also be the step of four cavity 51a-51c welded seals.Sidewall 6 processing sealed step 8 around the said aluminium alloy lower house, said sealed step 8 is high together with said supporting construction 7.
Size according to the sealed step 8 of the aluminium alloy lower house of multi-cavity body phase transformation temperature-uniforming plate; Aluminium alloy plate is cut out fastening and seals the aluminium alloy upper shell on the said aluminium alloy lower house; As shown in Figure 3, its Surface Machining has welding groove 10 and the welding side 9 that has the inclination angle.That is to say that the said aluminium alloy upper shell of producing will match with said aluminium alloy lower house, have respectively the welding side 9 and welding groove 10 that match with said sealed step 8 and said supporting construction 7.Further, have four fabrication holes 11 in four bights of aluminium alloy upper shell, said fabrication hole 11 is used to be welded as the process duct of each cavity exhaust and filled working medium.
Design requirement according to different product; Select the foamed aluminium (80～120 order) of different mesh for use; And according to the hot biography demand of product; Utilize difference to cut mould and cut out the first aluminum foam plate 52a (1# cavity cystosepiment) as shown in Figure 4, the second aluminum foam plate 52b (2# cavity cystosepiment), the 3rd aluminum foam plate 52c (3# cavity cystosepiment), the 4th aluminum foam plate 52d (4# cavity cystosepiment) respectively, to cooperate the size of each cavity 51a-51d of multi-cavity body phase transformation temperature-uniforming plate aluminium alloy lower house.
To the said aluminum foam plate 52a-52d that cutting obtains, utilize pressing mold respectively processing and fabricating go out aluminum foam cavity geometry like corresponding a plurality of cavity 51a-51d of Fig. 5, utilize ultrasonic wave to carry out decontamination, cleaning by degreasing afterwards, afterwards the oven dry.
The aluminum foam plate 52a-52d and the aluminium alloy lower house that clean, oven dry is accomplished are fitted together, as shown in Figure 6, and (keep certain pressure, 10kg/cm2) to corresponding aluminum foam cavity 53a-53d, and protect fabrication hole 11 the soldering core is sealed.
Through aluminium brazing technique aluminium alloy lower house and the disposable seal weld of aluminum foam plate are connected together.
Four fabrication holes 11 of process duct (vacuum tube and filling tube) and aluminium alloy upper shell are fitted together; In assembling process, control the fit clearance of housing and housing welding between the slit well; Said fit clearance is generally less than 0.08mm; Then, utilize the argon arc welding that process duct and aluminium alloy upper shell are welded together.
Adopt friction stir welding (Friction Stir Welding is called for short FSW) technology, with said welding groove 10 and the 12 sealing welding of limit seam groove.Then; Vacuumize through process duct, and, inject working medium at each aluminum foam cavity according to the product design demand; Utilize argon arc welding afterwards; Seal the process duct of each aluminum foam cavity, make each aluminum foam cavity reach independent sealed fully, thereby form temperature-uniforming plate with four independent sealed phase transformation cavitys.
Fig. 8 has shown the application sketch map of the multi-cavity body phase transformation temperature-uniforming plate that the embodiment of the invention provides; As shown in Figure 8; In a power module, three pyrotoxins are arranged simultaneously, be respectively the first thermal source 13a, the second thermal source 13b, the 3rd thermal source 13c; Said three thermals source are positioned at the below of multi-cavity phase transformation temperature-uniforming plate, and closely contact with the temperature-uniforming plate plane.Transferred to colling end for what can guarantee that heat that said three thermal source modules produce can be safe and reliable by multi-cavity phase transformation temperature-uniforming plate; Adopted Redundancy Design; Be that each thermal source contacts with two independent sealed temperature-uniforming plate cavitys simultaneously; As shown in Figure 8; The said first thermal source 13a is positioned at the first aluminum foam cavity 53a and second aluminum foam cavity 53b below; The said second thermal source 13b is positioned at the second aluminum foam cavity 53b and the 3rd aluminum foam cavity 53c below, and said the 3rd thermal source 13c is positioned at the 3rd aluminum foam cavity 53c and the 4th aluminum foam cavity 53d below, i.e. the heat of first thermal source 13a generation can be transferred to colling end by the working medium (working solution) in the first aluminum foam cavity 53a and two independent sealed chambeies of the second aluminum foam cavity 53b.Equally, the heat of second thermal source 13b generation can be transferred to colling end by the working solution in the second aluminum foam cavity 53b and two independent sealed chambeies of the 3rd aluminum foam cavity 53c; The heat that said the 3rd thermal source 13c produces can be transferred to colling end by the working solution in the 3rd aluminum foam cavity 53c and two independent sealed chambeies of the 4th aluminum foam cavity 53d.
Its reliability shows; When one of them independent sealed chamber; The first aluminum foam cavity 53a for example, take place to reveal or other when damaging, the working medium in the second aluminum foam cavity 53b still can be taken away the heat that the first thermal source 13a is produced; Thereby guaranteed that the first thermal source 14a can normal use, strengthened the reliability and the security of power module.
In sum, the present invention has following technique effect:
1. can satisfy many thermals source heat transfer demand simultaneously;
2. can utilize a plurality of aluminum foam cavitys to reach the design requirement of redundant reliability;
3. multi-cavity body phase transformation temperature-uniforming plate has better structural strength;
4. manufacture craft is simple, and copper samming cost can significantly reduce relatively;
5. can effectively reduce heatsink weight.
Although preceding text specify the present invention, the invention is not restricted to this, those skilled in the art of the present technique can carry out various modifications according to principle of the present invention.Therefore, all modifications of doing according to the principle of the invention all are to be understood that to falling into protection scope of the present invention.
Claims (7)
1. a multi-cavity body phase transformation temperature-uniforming plate is characterized in that, comprising:
Aluminium alloy lower house with a plurality of cavitys;
Be installed in a plurality of cavitys in the aluminium alloy lower house to form a plurality of aluminum foam plates of a plurality of aluminum foam cavitys;
Fasten and seal the aluminium alloy upper shell of said aluminium alloy lower house.
2. temperature-uniforming plate according to claim 1 is characterized in that, said aluminium alloy lower house comprises:
Substrate;
Be positioned at said substrate edges and be higher than the sidewall of said substrate;
Be fixed on the said substrate and be positioned at the supporting construction that being used within the sidewall forms said a plurality of cavitys.
3. temperature-uniforming plate according to claim 2 is characterized in that said sidewall is processed with sealed step.
4. temperature-uniforming plate according to claim 3 is characterized in that, height such as said sealed step and said supporting construction.
5. according to any described temperature-uniforming plate of claim 1-4, it is characterized in that said aluminium alloy upper shell has the welding groove that matches with said supporting construction, and the welding side with inclination angle that matches with said sealed step.
6. temperature-uniforming plate according to claim 5 is characterized in that, said supporting construction is snakelike supporting construction.
7. temperature-uniforming plate according to claim 1 is characterized in that, is marked with the working medium that is used for phase-change heat transfer in said a plurality of aluminum foam cavitys.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200121303U CN202403584U (en) | 2012-01-12 | 2012-01-12 | Multi-chamber phase-change temperature equalization board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200121303U CN202403584U (en) | 2012-01-12 | 2012-01-12 | Multi-chamber phase-change temperature equalization board |
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| Publication Number | Publication Date |
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| CN202403584U true CN202403584U (en) | 2012-08-29 |
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| CN2012200121303U Expired - Lifetime CN202403584U (en) | 2012-01-12 | 2012-01-12 | Multi-chamber phase-change temperature equalization board |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105451507A (en) * | 2014-09-02 | 2016-03-30 | 富葵精密组件(深圳)有限公司 | Heat radiation structure and manufacturing method thereof |
| CN105828570A (en) * | 2015-09-24 | 2016-08-03 | 维沃移动通信有限公司 | Heat dissipation device |
| CN106090855A (en) * | 2016-07-28 | 2016-11-09 | 广东工业大学 | A kind of steam waste heat recovery plant |
| CN106211701A (en) * | 2015-04-30 | 2016-12-07 | 富葵精密组件(深圳)有限公司 | Thin radiating fins and preparation method thereof |
| CN106482560A (en) * | 2015-08-25 | 2017-03-08 | 全亿大科技（佛山）有限公司 | Soaking plate |
| CN108151556A (en) * | 2017-12-20 | 2018-06-12 | 珠海格力电器股份有限公司 | Heat exchanger and manufacturing method thereof |
| CN109900145A (en) * | 2019-03-14 | 2019-06-18 | 深圳兴奇宏科技有限公司 | Equalizing plate structure |
| CN109945704A (en) * | 2019-04-24 | 2019-06-28 | 常州恒创热管理有限公司 | Multistage plate-type heat-pipe and radiator |
| CN115388689A (en) * | 2022-09-01 | 2022-11-25 | 中科可控信息产业有限公司 | Heat pipe |
-
2012
- 2012-01-12 CN CN2012200121303U patent/CN202403584U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105451507B (en) * | 2014-09-02 | 2018-02-02 | 鹏鼎控股(深圳)股份有限公司 | The preparation method of radiator structure and the radiator structure |
| CN105451507A (en) * | 2014-09-02 | 2016-03-30 | 富葵精密组件(深圳)有限公司 | Heat radiation structure and manufacturing method thereof |
| US10012454B2 (en) | 2014-09-02 | 2018-07-03 | Avary Holding (Shenzhen) Co., Limited. | Heat dissipation device and method for manufacturing same |
| CN106211701B (en) * | 2015-04-30 | 2018-09-25 | 鹏鼎控股(深圳)股份有限公司 | Thin radiating fins and preparation method thereof |
| CN106211701A (en) * | 2015-04-30 | 2016-12-07 | 富葵精密组件(深圳)有限公司 | Thin radiating fins and preparation method thereof |
| TWI658247B (en) * | 2015-08-25 | 2019-05-01 | 鴻準精密工業股份有限公司 | Vapor chamber |
| CN106482560A (en) * | 2015-08-25 | 2017-03-08 | 全亿大科技（佛山）有限公司 | Soaking plate |
| CN105828570A (en) * | 2015-09-24 | 2016-08-03 | 维沃移动通信有限公司 | Heat dissipation device |
| CN106090855A (en) * | 2016-07-28 | 2016-11-09 | 广东工业大学 | A kind of steam waste heat recovery plant |
| CN108151556A (en) * | 2017-12-20 | 2018-06-12 | 珠海格力电器股份有限公司 | Heat exchanger and manufacturing method thereof |
| CN109900145A (en) * | 2019-03-14 | 2019-06-18 | 深圳兴奇宏科技有限公司 | Equalizing plate structure |
| CN109945704A (en) * | 2019-04-24 | 2019-06-28 | 常州恒创热管理有限公司 | Multistage plate-type heat-pipe and radiator |
| CN115388689A (en) * | 2022-09-01 | 2022-11-25 | 中科可控信息产业有限公司 | Heat pipe |
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| GR01 | Patent grant | ||
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Granted publication date: 20120829 |