CN204289426U - 一种变频器igbt散热结构- Google Patents

本实用新型公开了一种变频器IGBT散热结构，它包括IGBT单管、金属基板、散热器、PCB板、导热界面材料，所述IGBT单管有管脚和单管散热片，金属基板为三层结构， ... CN204289426U-一种变频器igbt散热结构 -GooglePatents 一种变频器igbt散热结构 DownloadPDF Info Publicationnumber CN204289426U CN204289426U CN201420834538.8U CN201420834538U CN204289426U CN204289426U CN204289426U CN204289426U CN201420834538U CN201420834538U CN201420834538U CN204289426U CN204289426U CN204289426U Authority CN China Priorartkeywords metalsubstrate igbt radiator frequencyconverter heat Priorartdate 2014-12-25 Legalstatus(Thelegalstatusisanassumptionandisnotalegalconclusion.Googlehasnotperformedalegalanalysisandmakesnorepresentationastotheaccuracyofthestatuslisted.) Expired-FeeRelated Applicationnumber CN201420834538.8U Otherlanguages English(en) Inventor 顾月刚 潘峰 CurrentAssignee(Thelistedassigneesmaybeinaccurate.Googlehasnotperformedalegalanalysisandmakesnorepresentationorwarrantyastotheaccuracyofthelist.) ZHEJIANGJAROLSCIENTIFICINSTRUMENTCO.,LTD. OriginalAssignee JIAXINGJAROLSCIENTIFICINSTRUMENTCOLtd Prioritydate(Theprioritydateisanassumptionandisnotalegalconclusion.Googlehasnotperformedalegalanalysisandmakesnorepresentationastotheaccuracyofthedatelisted.) 2014-12-25 Filingdate 2014-12-25 Publicationdate 2015-04-22 2014-12-25 ApplicationfiledbyJIAXINGJAROLSCIENTIFICINSTRUMENTCOLtd filed Critical JIAXINGJAROLSCIENTIFICINSTRUMENTCOLtd 2014-12-25 PrioritytoCN201420834538.8U priority Critical patent/CN204289426U/zh 2015-04-22 Applicationgranted granted Critical 2015-04-22 PublicationofCN204289426U publication Critical patent/CN204289426U/zh Links Espacenet GlobalDossier Discuss 229910052751 metal Inorganicmaterials 0.000 claims abstract description 57 239000002184 metal Substances 0.000 claims abstract description 57 239000000758 substrate Substances 0.000 claims abstract description 48 239000000463 material Substances 0.000 claims abstract description 25 RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemicalcompound 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[Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 23 229910052802 copper Inorganicmaterials 0.000 claims abstract description 20 239000010949 copper Substances 0.000 claims abstract description 20 239000004411 aluminium Substances 0.000 claims description 5 229910052782 aluminium Inorganicmaterials 0.000 claims description 5 XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemicalcompound 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[Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1 229910052710 silicon Inorganicmaterials 0.000 description 1 239000010703 silicon Substances 0.000 description 1 239000002699 wastematerial Substances 0.000 description 1 238000003466 welding Methods 0.000 description 1 Classifications H—ELECTRICITY H01—BASICELECTRICELEMENTS H01L—SEMICONDUCTORDEVICES;ELECTRICSOLIDSTATEDEVICESNOTOTHERWISEPROVIDEDFOR H01L24/00—Arrangementsforconnectingordisconnectingsemiconductororsolid-statebodies;Methodsorapparatusrelatedthereto H01L24/01—Meansforbondingbeingattachedto,orbeingformedon,thesurfacetobeconnected,e.g.chip-to-package,die-attach,"first-level"interconnects;Manufacturingmethodsrelatedthereto H—ELECTRICITY H01—BASICELECTRICELEMENTS H01L—SEMICONDUCTORDEVICES;ELECTRICSOLIDSTATEDEVICESNOTOTHERWISEPROVIDEDFOR H01L2924/00—Indexingschemeforarrangementsormethodsforconnectingordisconnectingsemiconductororsolid-statebodiesascoveredbyH01L24/00 H01L2924/10—Detailsofsemiconductororothersolidstatedevicestobeconnected H01L2924/11—Devicetype H01L2924/13—Discretedevices,e.g.3terminaldevices H01L2924/1304—Transistor H01L2924/1305—BipolarJunctionTransistor[BJT] H01L2924/13055—Insulatedgatebipolartransistor[IGBT] Abstract 本实用新型公开了一种变频器IGBT散热结构，它包括IGBT单管、金属基板、散热器、PCB板、导热界面材料，所述IGBT单管有管脚和单管散热片，金属基板为三层结构，从上到下依次为铜层、绝缘层、金属基层；IGBT管脚插装焊接到PCB板上，单管散热片焊接在金属基板铜层上，金属基板固定在散热器上，金属基板和散热器之间有导热界面材料。

本实用新型使IGBT单管的使用寿命大大提高，绝缘导热性能好使IGBT单管温升速度和温度大大降低，从而提高了变频器工作的可靠性。

Description 一种变频器IGBT散热结构 技术领域 [0001] 本实用新型属于变频器技术领域，特别涉及一种变频器IGBT散热结构。

背景技术 [0002] 热量是硅类半导体的最大威胁，随着电子工业的飞速发展，电子产品的体积尺寸赶来越小，功率密度越来越大，解决散热问题是对电子工业设计的一个巨大的挑战。

变频器属大功率电力电子设备，内部配备大量功率半导体器件，工作过程中会产生大量热量。

而功率半导体器件IGBT管属温度敏感器件，因结温过高导致功率半导体器件烧毁是变频器故障中最常见的原因之一。

为保证变频器设备的稳定可靠运行，散热系统的设计是关键的一环。

[0003] 实际经验表明，散热系统设计的好坏，直接影响到变频器能否长时间安全稳定的工作。

原先的变频器IGBT单管是通过厚膜陶瓷电路或绝缘纸或FR4线路板来散热和绝缘的。

传统的玻璃很容易破碎机械性能差，绝缘纸是导热性能差。

传统的FR4线路板为一般为三层结构，上下两层为铜层，中间为导热性能较差的FR4层，铜层厚度较薄，一般为l~3oz，FR4层较厚，一般为0.6mm以上，热量由线路板上表面传到线路板下表面热阻较大，会有比较大的温差。

实用新型内容 [0004] 本实用新型所要解决的技术问题是，提供一种变频器IGBT散热结构，解决现有IGBT散热结构中存在的散热性能差，容易破碎的问题。

[0005] 为解决上述技术问题，本实用新型提供的变频器IGBT散热结构，它包括IGBT单管、金属基板、散热器、PCB板、导热界面材料层，所述IGBT单管有管脚和单管散热片，金属基板为三层结构，从上到下依次为金属基板铜层、金属基板绝缘层、金属基板金属基层；IGBT管脚插装焊接到PCB板上，单管散热片焊接在金属基板铜层上，金属基板固定在散热器上，金属基板和散热器之间有导热界面材料层。

[0006] 作为优选，所述导热界面材料为带粘性的导热界面材料，安装方便。

[0007] 作为优选，所述PCB板为FR4线路板或陶瓷线路板，有良好的可靠性，价格便宜。

[0008] 作为优选，所述金属基板的金属基层材料为铝或铜，便于加工。

[0009] 作为优选,所述金属基板绝缘层为FR4基材或CEM3基材,价格便宜,绝缘性能好。

[0010] 作为优选，所述单管散热片长宽3~8mm。

[0011] 作为优选,所述金属基板长20~40mm,宽15~30mm。

[0012] 作为优选，所述金属基板铜层的厚度为l~3oz，能有比较好的散热性能，便于加工生产。

[0013] 作为优选，所述散热器材料为铝或铜，散热性能良好，比较轻便。

[0014] 采用以上结构后，本实用新型变频器IGBT散热结构与现有技术相比，具有以下优占- ^\\\. [0015] I)良好的导热性、电气绝缘性能和机械加工性能，可降低模块运行温度，延长使用寿命，提高功率密度和可靠性。

与传统的FR4线路板相比，金属基板能够将热阻降至最低，使基板具有极好的热传导性能；与厚膜陶瓷电路相比，它能够抵抗器件焊接和运行时所产生的机械及热应力； [0016] 2)IGBT单管的使用寿命大大提高，绝缘导热性能好使IGBT单管温升速度和温度大大降低，从而提高了变频器工作的可靠性。

[0017] 3)金属基板电路层(采用电解铜箔)用于实现IGBT单管的装配和连接，与传统的FR4线路板相比，采用相同的线宽和相同的厚度，但金属基板能够承载更高的电流。

这是因为铜箔线路所产生的P=I2R的热损耗能被金属基板更快扩散出去。

铜箔的厚度能够影响金属基板的热传导能力，增加铜箔厚度，能够提高金属基板的热传导能力。

附图说明 [0018] 图1为本实用新型的结构示意图； [0019] 图2为本实用新型的结构主视图； [0020] 图3为图2中A-A处截面图； [0021] 图4为图3中B处放大图； [0022] 其中:1、IGBT单管，2、金属基板，3、散热器，4、PCB板，5、导热界面材料层，IUIGBT散热片，12、IGBT管脚，21、金属基板铜层，22、金属基板绝缘层，23、金属基板金属层。

具体实施方式 [0023] 下面通过实施例结合附图对本实用新型作进一步的描述。

[0024] 如图1-3所示，本实用新型提供的变频器IGBT散热结构，它包括IGBT单管1、金属基板2、散热器3、PCB板4。

IGBT单管I有管脚12和单管散热片11，管脚12作为插件焊接在PCB板4上，提供电气连接，PCB板4为双面布铜的FR4线路板。

单管散热片11采用贴片工艺焊接在金属基板。

如图4所示，金属基板为三层结构，从上到下依次为铜层21、绝缘层22、金属基层23，金属基层材料为铝。

6个IGBT单管的散热片11采用贴片工艺焊接在金属基板2的金属基板铜层21上。

金属基板2的金属基层23采用带粘性的导热界面材料粘结在散热器3上。

金属基板铜层21的厚度为2oz;绝缘层22的材料为FR4，厚度为1z；金属基层23的厚度为0.95-1.05mm。

散热器3长47mm,宽33mm,高31mm,底板厚度2.5mm,翅片厚度1.6mm,翅片间距7mm。

[0025] 金属基板2也可以通过螺丝固定在散热器3上，导热界面材料可以选用不带粘性的导热界面材料。

Claims(9) 1.一种变频器IGBT散热结构，它包括IGBT单管(I)、金属基板(2)、散热器(3)、PCB板(4)、导热界面材料层(5)，所述IGBT单管(I)有IGBT管脚(12)和单管散热片(11)，所述IGBT管脚(12)插装焊接到PCB板(4)上，其特征在于:所述金属基板(2)为三层结构，从上到下依次为金属基板铜层(21)、金属基板绝缘层(22)、金属基板金属基层(23)；单管散热片(11)焊接在金属基板铜层(21)上，金属基板(2)固定在散热器(3)上，金属基板(2)和散热器(3)之间有导热界面材料层(5)。

2.如权利要求1所述的变频器IGBT散热结构，其特征在于所述导热界面材料为带粘性的导热界面材料。

3.如权利要求1或2所述的变频器IGBT散热结构，其特征在于所述PCB板(4)为FR4线路板或陶瓷线路板。

4.如权利要求1或2所述的变频器IGBT散热结构，其特征在于所述金属基板(2)的金属基层(23)材料为铜或铝。

5.如权利要求1或2所述的变频器IGBT散热结构，其特征在于所述金属基板绝缘层(22)的材料为FR4基材或CEM3基材。

6.如权利要求1或2所述的变频器IGBT散热结构，其特征在于所述单管散热片(11)长4—1Omm’宽3~8mm。

7.如权利要求1或2所述的变频器IGBT散热结构，其特征在于所述金属基板(2)长20〜40mm，宽15〜30mm。

8.如权利要求1或2所述的变频器IGBT散热结构，其特征在于所述金属基板铜层(21)的厚度为l~3oz。

9.如权利要求1或2所述的变频器IGBT散热结构，其特征在于所述散热器(3)材料为招或铜。

CN201420834538.8U 2014-12-25 2014-12-25 一种变频器igbt散热结构 CN204289426U (zh) PriorityApplications(1) ApplicationNumber PriorityDate FilingDate Title CN201420834538.8U CN204289426U (zh) 2014-12-25 2014-12-25 一种变频器igbt散热结构 ApplicationsClaimingPriority(1) ApplicationNumber PriorityDate FilingDate Title CN201420834538.8U CN204289426U (zh) 2014-12-25 2014-12-25 一种变频器igbt散热结构 Publications(1) PublicationNumber PublicationDate CN204289426U true CN204289426U (zh) 2015-04-22 Family ID=52872560 FamilyApplications(1) ApplicationNumber Title PriorityDate FilingDate CN201420834538.8U CN204289426U (zh) 2014-12-25 2014-12-25 一种变频器igbt散热结构 CountryStatus(1) Country Link CN (1) CN204289426U (zh) 2014 2014-12-25 CN CN201420834538.8U patent/CN204289426U/zh not_active Expired-FeeRelated SimilarDocuments Publication PublicationDate Title CN203446104U (zh) 2014-02-19 绝缘导热基板 CN106298758B (zh) 2019-02-26 一种应用于电动汽车电控产品的贴片式功率器件集成结构 CN102781164A (zh) 2012-11-14 一种新型led照明灯具专用线路板 CN204289426U (zh) 2015-04-22 一种变频器igbt散热结构 CN102711367B (zh) 2015-10-21 一种导热铝基板及其制作方法 CN201869439U (zh) 2011-06-15 高散热金属基电路板 CN201225594Y (zh) 2009-04-22 基板的热导改良结构 CN202425193U (zh) 2012-09-05 一种铝基线路板 CN202338798U (zh) 2012-07-18 一种带有石墨基板的led灯 CN206077833U (zh) 2017-04-05 一种高导热率铝基板 CN203590590U (zh) 2014-05-07 一种电路封装结构pcb基板 CN204408745U (zh) 2015-06-17 新型贴片封装结构 CN204104210U (zh) 2015-01-14 一种具有散热结构的pcb板 CN202871867U (zh) 2013-04-10 Led散热基板 CN103632779B (zh) 2016-04-06 功率厚膜电阻器 CN203708153U (zh) 2014-07-09 一种无刷电机控制器 CN202634887U (zh) 2012-12-26 一种大功率led电路板结构 CN203286311U (zh) 2013-11-13 Led组件 CN203721405U (zh) 2014-07-16 功率厚膜电阻器 CN202799399U (zh) 2013-03-13 一种led直导铝基电路板 CN203368903U (zh) 2013-12-25 一种pcb板的散热结构 CN212211506U (zh) 2020-12-22 一种可快速散热的多层印制线路板 CN202507609U (zh) 2012-10-31 基材 CN203339222U (zh) 2013-12-11 一种导热柔性led导线板 CN209882216U (zh) 2019-12-31 一种多层高导热复合金属基线路板 LegalEvents Date Code Title Description 2015-04-22 GR01 Patentgrant 2015-11-25 C56 Changeinthenameoraddressofthepatentee 2015-11-25 CP01 Changeinthenameortitleofapatentholder Addressafter: HaiyanCounty,JiaxingcityofZhejiangprovincein314308townsofXinchengVillage Patenteeafter: ZHEJIANGJAROLSCIENTIFICINSTRUMENTCO.,LTD. Addressbefore: HaiyanCounty,JiaxingcityofZhejiangprovincein314308townsofXinchengVillage Patenteebefore: JiaxingJarolScientificInstrumentCo.,Ltd. 2019-04-23 CP02 Changeintheaddressofapatentholder 2019-04-23 CP02 Changeintheaddressofapatentholder Addressafter: 314308No.1070Lane88YanbeiWestRoad,WuyuanStreet,HaiyanCounty,JiaxingCity,ZhejiangProvince Patenteeafter: ZHEJIANGJAROLSCIENTIFICINSTRUMENTCO.,LTD. Addressbefore: 314308GuyuVillage,HaiyanCounty,JiaxingCity,ZhejiangProvince Patenteebefore: ZHEJIANGJAROLSCIENTIFICINSTRUMENTCO.,LTD. 2021-12-03 CF01 Terminationofpatentrightduetonon-paymentofannualfee Grantedpublicationdate: 20150422 Terminationdate: 20201225 2021-12-03 CF01 Terminationofpatentrightduetonon-paymentofannualfee