Boyd’s Solution Including a Counter Intuitive Reduction of Heat Sink Size Solved Customer’s Tablet Temperature Problem

时间： 2024-06-30 来源：BOYD Official Website

技术问答

Introduction

A major contract electronics manufacturer (CEM) chose BOYD, to evaluate the thermal performance of a ruggedized tablet PC in order to reduce the skin temperature of the product.

Challenge

Reduce the skin temperature and still maintain the component temperatures within operating limits.

The system had to be isolated from outside air and dust.

Due to the small product form factor, it had to be cooled using natural convection.

Solution

Boyd characterized the air flow and temperature profile of the enclosure using CFD. The resulting CFD model was used to identify critical components and product zones that needed improvement. The size of the heat sinks for the hottest components was reduced to decrease radiant heat transfer from the heat sinks to the external enclosure.

The hot spot regions were isolated from the external enclosure using insulation at several locations:

• A plastic cover was added over the hot spots to separate the heat sources from the side wall of the enclosure.

• Polycarbonate sheet was added for thermal insulation between the PCB and a magnesium plate that houses the processor.

• Silicone sealant was added between the heat sink base and the magnesium plate.

• An RF gasket was added around the interface between the heat sink and the processor to act both as thermal insulation and EMI shielding.

The Deliverables/Results

Boyd’s solution solved the customer’s tablet temperature problem. The solution included a counter intuitive reduction of heat sink size. Boyd’s expertise provided a cost-effective alternative to a customer that had no need for full time thermal engineering.

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本文由莫子若转载自BOYD Official Website，原文标题为:Tablet，本站所有转载文章系出于传递更多信息之目的，且明确注明来源，不希望被转载的媒体或个人可与我们联系，我们将立即进行删除处理。

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目录- General Information Board Mounted Heat Sinks part number Introduction Interface Materials Labor Saving Heat Sink to Board and Semiconductor Mounts Clips Accessories

型号- 6221PBG,530001B02500G,505303B00000G,530402B00100G,566902B00000G,534265,43-77-2G,374824B00032G,513102B02500G,566010B03100G,575803,581002,573100D00000G,PF750G,101900F00000G,581001,374324B00032G,576802V00000G,507302B000 _ _G,7717-18G,373324M00032G,575803B00000G,T405R,5748 02 B 0 37 00 G,533302B02551G,576904,4804SG,6224BG,513101,507002B00000G,513102,7022BG,534002,2342B-TACHG,574004B00000G,576904B00000G,335714B00032G,593002,375024B00035G,115300F00000G,501100B00000G,529901,529902,7721-13NG,574502,580600B00000G,578405B00000G,7023B-MTG,7022B–8223–CL03 G,6238B-MTG,519703B00000G,519903,533802B02554G,TV58G,580100B00000G,7717-178G,591302B02800G,563002D00000G,581201,8923-1G,579704B00000G,581202,6237BG,500403B00000G,7721-3PPSG,PF730G,TV35G,7021B-_G,591202B04000G,T414,T411,T412,2520B-EP04-BGS5G,6399BG,7717-130G,TV4G,MS 51957-30,2522B-EP04-BGS5G,335211B00032G,576802U04000G,500_03B 0 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G,542502D00000G,577304B00000G,500203,7717-247G,374524B00032G,SW63-4G,101600F00000G,576802B04000G,7721-7PPS,109G,531302V02500G,506003B00000G,590302B03600G,573400D00000G,SW63-2G,579302,374824B00035G,533701B02552G,574102B0 00 00G,10-L4LB-03G,NG,335214B00034G,532802B02500G,6222BG,4880G,574102B03300G,575603B00000G,375024B00032G,513302,513301,534202,7020BG,590102,577_ _02B 0 4000G,7717-79G,6239B-MTG,5_9003B 0 0000G,10-6326-27G,574402B03200G,5900PBG,5005-09NG,6021_–_-_G,507222B00000G,578622B03200G,529801B000 _ _G,560200W00000G,530510U00000G,TV1505G,501303,8223-CL03G,513201B02500G,100000F00000G,7721-15NG,10-6326-28G,533401B02552G,53-03-2,10-L4LB-05G,374524B00035G,530862B05162G,566010,507302J00000G,592502U03400G,7142DG,7721-1PPSG,530101B00150G,43-18-1G,4170G,6110,374824B60024G,592502B03400G,579604,533602,533601,574502B03300G,6109,501000J00000G,53-77-9G,529702B02500G,519903B00000G,6021PBG,577202,576103,335224B00032G,6381BG,530101,530102,574902B00000G,577002B04000G,6032DG,581001B02500G,529801B02500G,6374,5901G,573300D00000G,574402B00000G,501503B00000G,530801B05150G,6043PBG,7717-86G,569022B0 00 00G,579802B03300G,505103B00000G,507102,10-5597-22G,500203B00000G,573400D00010G,6380,579402,101700F00000G,551002,577500B00000G,MS15795-804,MS15795-805,506003,508700B00000G,576802U00000G,579302B00000G,6396,578205B00000G,6399,6398,7109DG,2332B-TACHG,574204B03300G,7717-3G,520329B00000G,579103B00000G,BW63-4G,579802,533402,10-TNT2-01G,533401,6399B-P2G,371824B00032G,102000F00000G,529901B02500G,6021BG,7173DG,6230DG,59 _ _ 02B034 00G,7021B-MTG,520103,506003B0 _ _ 00G,7717-4G,533422,531002,533421,533601B02552G,533422B02552G,108000F00000G,576303,579604B00000G,2518B-EP11-BGS2G,372924M02000G,6237PBG,507302 _ 000 00G,7022,563002,7021,7023,7717-5G,7025,6110PBG,2321B-TACHG,7020,7721-5PPS,BW63-2G,577404,530714B00000G,519803B00000G,533622,584000B03500G,531202,533621,7019,371824B00034G,10-5597-02G,577404B00000G,501403B00000G,591202B00000G,6203PBG,336314B00000G,200000F00000G,520328,576 _ 03B 0 00 00G,520329,575002,580500B00000G,335224B00034G,504222B00000G,10-BRD2-01G,6109PBG,566902B03100G,519703,7717-7G,577922B00000G,T410R,578505B00000G,513101B02500G,6374BG,505303,533621B02552G,576602B00000G,533202B02551G,374224B60023G,2327B-CP50G,6396B-P2G,7717-8G,4177G,575300B00000G,4949G,374724B00032G,TV40G,6396BG,335314B00000G,7038BG,6225B-MTG,505403B00000G,530714,615653B00250G,373224M00032G,374424B00035G,132000F00000G,574102,10-BRD1-01G,504222,533301B02551G,501706B00000G,574802B0 _ _ 00G,520327B00000G,125700D00000G,10-BRD1-04G,532702B02500G,533802,579206V00000G,505103,374124B00035G,575603,574802B03300G,5005-25NG,TC1,566902,TC6,TC7,115200F00000G,531102B02500G,10-BRD1-03G,533001B02551G,542502,533502B02552G,501200B00000G,542502B000 _ _G,513302B02500G,576203B00000G,374424B00032G,579902B00000G,320205B00000G,10-BRD1-07G,116200F00000G,375424B00034G,507302,335114B00032G,4171G,161000F00000G,529801B000 _ _ G,350G,374524B60023G,10-BRD1-05G,532702,375124B00035G,530102B00100G,374124B00032G,513002B02500G,551002B00000G,577002B00000G,513202,513201,6049PBG,46-77-9G,7023BG,7717-122G,506902,351G,PF435G,7019PBG,375124B00032G,533622B02552G,110G,7721-10PPSG,593101,7023B–_G,10-L4LB-11G,374124B60023G,529801,529802,6070B– G,574602,533721

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型号- PSAD1A238BM,PAAD16015BH,PA SERIES-4010,PAAD05010BM,PAAD19225BH,PAAD16015BL,PAAD16015BM,PSAD1A238BL,PAAD28025BM-,PAAD29225SM-,PSAD1A238BH,PAAD05010SH,PE SERIES 9225,PAAD16015SH,PEAD26025BH,PAAD16015SL,PAAD05010SM,PAAD16015SM,PEAD28025BM,PS SERIES 8015,PS SERIES 9225,PAAD28015BH-,PA SERIES 8010,PS SERIES 8010,PA SERIES 8015,PA SERIES 9225,PSAD04010SH,PSAD04010SL,PSAD18010SH,PSAD04010SM,PAAD18015SH,PSAD18010SL,PEAD28025BL,PAAD18015BL,PSAD04010BM,PAAD18015BM,PEAD26025BL,PEAD28025BH,PEAD26025BM,PSAD18010SM,PEAD49238BL,PSAD04010BH,PEAD49238BM,PEAD49238BH,PSAD04010BL,PAAD05010BH,PS SERIES 8025,PAAD18015SM,PAAD18015SL,PAAD29225BL-,PSAD18010BH,PEAD48038BH,PSAD18010BM,PSAD18010BL,PEAD48038BL,PAAD18025SH-,PSAD08010BM,PAAD28015SM,PSAD08010BL,PEAD16025BL,PAAD18025SH,PEAD16025BM,PEAD48038BM,PE SERIES-8038,PAAD18025BL,PAAD18025BM,PAAD06015SL,PAAD28015SH-,PS SERIES-5010,PAAD06015SM,PAAD28015BM,PAAD15010BH,PAAD06015SH,PSAD08010SM,PSAD08010SL,PAAD18025SM,PAAD06015BH,PAAD18025SL,PAAD15010BB,PAAD06015BM,PAAD06015BL,PE SERIES,PA SERIES-8025,PAAD15010SH,PAAD29225SL-,PAAD15010BM,PE SERIES-8025,PSAD14010BH,PAAD15010SB,PSAD14010BL,PSAD14010BM,PS SERIES-A225,PAAD18025BH,PA SERIES 7010,PE SERIES-9238,PAAD15010SM,PEAD16025BH,PSAD14010SH,PSAD14010SL,PAAD08015BM,PSAD14010SM,PAAD08015BL,PAAD14010SM,PAAD14010SL,PEAD18025BH,PEAD28038BH,PAAD08015SH,PEAD18025BL,PS SERIES-8025,PAAD18010SM-,PEAD18025BM,PEAD49225BM,PAAD08015SM,PAAD18010SL-,PAAD08015SL,PSAD4A225BL,PSAD4A225BM,PA SERIES 4010,PAAD14010BL,PAAD14010BM,PSAD4A225BH,PAAD18015BL-,PAAD14010SH,PAAD29225BH,PEAD19225BM,PEAD4A238BH,PA SERIES-5010,PAAD26015BH,PAAD29225BM,PAAD29225BL,PSAD15010BM,PEAD4A238BM,PEAD4A238BL,PSAD15010SM,PSAD15010SL,PAAD28015SM-,PAAD29225SH,PSAD15010SH,PAAD29225SL,PAAD29225SM,PAAD26015SH,PAAD28025SL-,PSAD15010BL,PSAD2A238BH,PS SERIES 7010,PAAD18015BM-,PEAD29225BH,PSAD15010BH,PSAD2A238BL,PAAD29225BH-,PSAD2A238BM,PAAD18010BL-,PAAD26025BM,PSAD16010BH,PAAD26025BL,PSAD16010BL,PSAD18025BL,PSAD16010BM,PSAD18025BM,PEAD46025BH,PEAD29225BM,PS SERIES,PAAD26025BH,PEAD29225BL,PSAD18025SL,PSAD18025SH,PE SERIES 8038,PEAD18038BL,PEAD18038BM,PAAD26025SL,PAAD26025SM,PSAD16010SH,PSAD16010SM,PSAD2A225BH,PAAD26025SH,PAAD18015BH,PSAD16010SL,PAAD28025SM-,PAAD19225BM-,PSAD18025BH,PSAD2A225BL,PSAD2A225BM,PEAD14028BL,PEAD14028BM,PEAD14028BH,PAAD18010BM-,PAAD04010SL,PAAD16025BH,PAAD04010SM,PE SERIES-4028,PAAD16025BL,PAAD16025BM,PSAD1A225BL,PSAD1A225BM,PAAD14010BH,PAAD28025BL-,PAAD19225SM,PAAD19225SL,PSAD1A225BH,PE SERIES 9238,PAAD29225SH-,PS SERIES-4010,PEAD49225BH,PE SERIES 8025,PSAD06010BL,PAAD16025SH,PSAD4A238BM,PAAD04010BL,PSAD4A238BL,PAAD04010BM,PAAD16025SL,PAAD16025SM,PSAD18025SM,PEAD28038BM,PEAD2A238BL,PAAD19225SH,PSAD4A238BH,PEAD2A238BM,PEAD28038BL,PAAD19225BL,PEAD2A238BH,PEAD46025BL,PAAD19225BL-,PAAD08015BH,PEAD46025BM,PA SERIES 8025,PAAD19225BM,PSAD06010SL,PSAD05010BM,PEAD19238BL,PSAD05010BL,PS SERIES A238,PEAD19238BM,PSAD05010BH,PSAD16015BH,PSAD19225BH,PS SERIES-7010,PAAD18025BM-,PAAD19225SM-,PSAD05010SM,PSAD05010SL,PSAD18015SM,PAAD06010SH,PAAD18010BH,PSAD18015SL,PSAD16015SH,PSAD19225BL,PAAD18010SH-,PAAD06010SM,PAAD18010BM,PSAD05010SH,PAAD06010SL,PAAD18010BL,PSAD19225BM,PAAD06010BM,PSAD16015BL,PSAD19225SH,PA SERIES-7010,PAAD18015BH-,PSAD16015BM,PSAD07010SL,PS SERIES A225,PAAD18010BH-,PSAD07010SM,PA SERIES-6025,PE SERIES-6025,PAAD18025BL-,PAAD19225SL-,PEAD18038BH,PA SERIES 5010,PSAD07010BL,PSAD07010BM,PAAD16010BH,PEAD19238BH,PAAD28025SH-,PSAD17010SL,PA SERIES-6010,PSAD17010SM,PSAD17010SH,PA SERIES-6015,PAAD18015SL-,PAAD08010SH,PAAD08010SM,PAAD08010SL,PSAD17010BM,PE SERIES 4028,PSAD17010BL,PSAD17010BH,PS SERIES 6015,PS SERIES 6010,PEAD29238BH,PEAD19225BH,PEAD19225BL,PAAD18010SH,PSAD18015BM,PAAD06010BH,PSAD18015BL,PAAD18010SL,PSAD19225SM,PEAD29238BM,PSAD19225SL,PEAD29238BL,PAAD06010BL,PAAD18010SM,PAAD18015SM-,PS SERIES-8010,PAAD28025BH-,PSAD08015SM,PSAD18015SH,PS SERIES-8015,PS SERIES-9225,PE SERIES-A238,PS SERIES 6025,PAAD28015BM-,PSAD18015BH,PAAD19225BH-,PA SERIES-8015,PA SERIES-9225,PSAD16025SL,PAAD28025BH,PS SERIES-A238,PSAD08015SL,PE SERIES-9225,PS SERIES 4010,PSAD08015BM,PSAD08015BL,PEAD48025BH,PEAD48025BM,PAAD28025SL,PAAD28025SM,PEAD48025BL,PSAD16025BH,PE SERIES 6025,PS SERIES-6010,PAAD18025BH-,PAAD19225SH-,PS SERIES-6015,PSAD06015BM,PA SERIES 6025,PSAD06015BL,PAAD28025BL,PAAD28025BM,PAAD04010BLXXXX,PSAD16025BL,PSAD16025BM,PAAD08010BH,PAAD08010BM,PA SERIES-8010,PAAD08010BL,PAAD28025SH,PAAD16010BM,PSAD06015SM,PSAD06015SL,PAAD16010SH,PAAD18015SH-,PS SERIES-6025,PAAD16010SM,PAAD07010BL,PAAD07010BM,PAAD07010BH,PAAD17010BM,PA SERIES 6010,PAAD17010SL,PAAD18025SM-,PAAD29225BM-,PAAD17010SM,PAAD17010SH,PA SERIES 6015,PAAD07010SM,PAAD07010SL,PAAD07010SH,PSAD16015SL,PSAD16015SM,PAAD17010BL,PE SERIES A238,PAAD17010BH,PS SERIES 5010,PAAD18025SL-

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