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CN108076617B - 用于车载充电机或电压变换器的散热结构 - Google Patents

用于车载充电机或电压变换器的散热结构 Download PDF

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CN108076617B
CN108076617B CN201810007168.3A CN201810007168A CN108076617B CN 108076617 B CN108076617 B CN 108076617B CN 201810007168 A CN201810007168 A CN 201810007168A CN 108076617 B CN108076617 B CN 108076617B
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switch tube
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CN108076617A (zh
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刘钧
冯颖盈
姚顺
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Shenzhen Weimeisi New Energy Group Co ltd
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Shenzhen Vmax Power Co Ltd
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Priority to PCT/CN2018/083855 priority patent/WO2019134300A1/zh
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Priority to US16/234,763 priority patent/US10568235B2/en
Priority to FR1900034A priority patent/FR3076776B3/fr
Priority to DE202019100027.9U priority patent/DE202019100027U1/de
Priority to JP2019000004U priority patent/JP3221963U/ja
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
    • H05K7/20272—Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/20—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by converters located in the vehicle
    • B60L53/22—Constructional details or arrangements of charging converters specially adapted for charging electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/14—Mounting supporting structure in casing or on frame or rack
    • H05K7/1422—Printed circuit boards receptacles, e.g. stacked structures, electronic circuit modules or box like frames
    • H05K7/1427—Housings
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20845—Modifications to facilitate cooling, ventilating, or heating for automotive electronic casings
    • H05K7/20872—Liquid coolant without phase change
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
    • H05K7/20927—Liquid coolant without phase change
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2210/00—Converter types
    • B60L2210/30—AC to DC converters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/10—Vehicle control parameters
    • B60L2240/36—Temperature of vehicle components or parts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

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  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Dc-Dc Converters (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

本发明公开了一种用于车载充电机或电压变换器的散热结构。本发明包括机壳，设置在所述机壳内的冷却液流道，以及与所述机壳相配合的PCB板，所述冷却液流道纵向设置，与各发热部件充分接触。采用以上设计，具有体积小、散热效果优异、装配简单、成本低、重量轻的优点。

Description

用于车载充电机或电压变换器的散热结构
技术领域
本发明涉及纯电动、混动汽车充电技术和电压变换设备领域，尤其涉及一种用于车载充电机或电压变换器的散热结构。
背景技术
随着节能减排，以及控制大气污染的需求，新能源汽车逐渐在市场商用，而电动汽车更是新能源汽车的主力军。电动汽车又分为纯电动汽车和混动汽车，其中车载充电机OBC、电压变换器DCDC是电动汽车中重要的组成部分。而目前的解决方案中，车载充电机OBC、电压变化器DCDC、或者相关集成产品外形尺寸大，散热能力不足。
发明内容
本发明的目的是针对上述现有技术存在的缺陷，提供一种用于车载充电机或电压变换器的散热结构。
本发明采用的技术方案是，设计一种用于车载充电机或电压变换器的散热结构,包括机壳，设置在所述机壳内的冷却液流道，以及与所述机壳相配合的PCB板，所述冷却液流道纵向设置，与各发热部件充分接触。
优选为，所述冷却液流道呈椭圆形。
优选为，所述发热部件包括：磁性元件、插件开关管和贴片开关管。
优选为，所述插件开关管设置在冷却液流道侧壁上，通过导热片与冷却液流道进行热交换。
优选为，所述PCB板上设有若干上下贯穿的通孔，所述贴片开关管固定在PCB板上，且与通孔相对应设置，所述通孔内设有导热胶，所述贴片开关通过导热胶与冷却液流道进行热交换。
优选为，所述机壳包括：
机壳本体；以及
设置在所述冷却液流道之间的磁性元件安装腔室；
当磁性元件安装到所述磁性元件安装腔室后，通过导热灌封胶封装。
优选为，所述冷却液流道包括：
呈椭圆形的流道本体；
与所述流道本体和机壳腔室相配合的流道上盖；以及
设置在所述机壳腔室侧壁上，与所述流道本体相连通的进液口和出液口。
优选为，所述流道本体设置在所述磁性元件安装腔室侧壁内。
优选为，所述插件开关管设置磁性元件安装腔室外侧壁上。
优选为，所述贴片开关管通过导热胶与磁性元件安装腔室侧壁上端面进行热交换。
与现有技术相比，本发明至少具有以下有益效果：本发明的车载充电机OBC、电压变换器DCDC或者相关集成产品具有体积小、散热效果优异、装配简单、成本低、重量轻的优点。
附图说明
图1为本发明用于车载充电机或电压变换器散热结构的结构示意图。
图2为本发明用于车载充电机或电压变换器散热结构横向剖面局部图。
图3为本发明用于车载充电机或电压变换器散热结构图2中的局部放大图。
图4为本发明用于车载充电机或电压变换器散热结构另一角度的结构示意图。
具体实施方式
下面结合附图和实施例对本发明做进一步说明。
如图1所示，本发明提出了一种用于车载充电机或电压变换器的散热结构,包括机壳10，设置在所述机壳10内的冷却液流道20，以及与所述机壳10相配合的PCB板30，所述冷却液流道20纵向设置，与各发热部件充分接触。
所述冷却液流道20呈椭圆形。
所述发热部件包括：磁性元件11、插件开关管12和贴片开关管17。
所述插件开关管12设置在冷却液流道20侧壁上，通过导热片13与冷却液流道20进行热交换。
具体的，机壳10为上端面开口的立方体，冷却液流道20设置在机壳10内中间位置处，且冷却液流道20纵向设置，采用该设计，与现有的冷却液流道20相比，现有的冷却液流道20都是平面设置，磁性元件11都位于冷却液流道20上方，只有磁性元件11的下方与能够与冷却液流道20进行热交换，效果较差，其他插件开关管12和贴片开关管17都与冷却液流道20不直接接触，散热效果相当差。
现在，将冷却液流道20纵向设置，使得磁性元件11侧壁上也与冷却液流道20接触，同时，冷却液流道20在底面上也设有缝隙，两者相连通，这种结构，使得冷却液流道20在工作时，能够对磁性元件11的底面以及侧面直接的热交换，较快加热散热。
需要说明的是，为了加快散热效果，在磁性元件11与冷却液流道20之间的缝隙内，增加了导热封装胶，大大加快了两者之间的热交换。
该方案还将插件开关管12设置在冷却液流道20侧壁上，同时通过导热片13在两者之间进行热传导，该设计大大加快了插件开关管12的散热。
如图2、图3所示， PCB板30上设有若干上下贯穿的通孔，所述贴片开关管17固定在PCB板30上，且与通孔相对应设置，所述通孔内设有导热胶31，所述贴片开关通过导热胶31与冷却液流道20进行热交换。
具体的，在导热胶31与与冷却液流道20之间还设有绝缘膜32。
通过回流焊的方式将贴片开关管17焊接到PCB板30上，在PCB板30上的通孔内设置导热胶31，导热胶31实现了贴片开关管17与冷却液通道之间的直接连接，当贴片开关管17发热时，通过导热胶31将热量传递到冷却液流道20上，通过冷却液流道20内的冷却液快速将热量带走。
为了避免贴片开关管17在整个过程中造成短路，在导热胶31与冷却液流道20之间设计绝缘膜32。
如图1、图4所示，所述机壳10包括：
机壳本体14；以及
设置在所述冷却液流道20之间的磁性元件安装腔室15；
当磁性元件11安装到所述磁性元件安装腔室15后，通过导热灌封胶16封装。
所述冷却液流道20包括：
呈椭圆形的流道本体21；
与所述流道本体21和机壳10腔室相配合的流道上盖22；以及
设置在所述机壳10腔室侧壁上，与所述流道本体21相连通的进液口23和出液口24。
所述流道本体21设置在所述磁性元件安装腔室15侧壁内。
所述插件开关管12设置磁性元件安装腔室15外侧壁上。
所述贴片开关管17通过导热胶31与磁性元件安装腔室15侧壁上端面进行热交换。
综上所述，本发明包括机壳10，设置在所述机壳10内的冷却液流道20，以及与所述机壳10相配合的PCB板30，所述冷却液流道20纵向设置，与各发热部件充分接触。采用以上设计，具有体积小、散热效果优异、装配简单、成本低、重量轻的优点。
上述实施例仅用于说明本发明的具体实施方式。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和变化，这些变形和变化都应属于本发明的保护范围。

Claims (3)

1.一种用于车载充电机或电压变换器的散热结构,包括机壳，设置在所述机壳内的冷却液流道，以及与所述机壳相配合的PCB板，其特征在于，所述冷却液流道纵向设置，与各发热部件充分接触，充分利用流道的各个面进行散热；
所述发热部件包括：磁性元件、插件开关管和贴片开关管；
所述机壳包括：机壳本体以及设置在所述冷却液流道之间的磁性元件安装腔室；当磁性元件安装到所述磁性元件安装腔室后，通过导热灌封胶封装；
所述冷却液流道在底面上也设有缝隙，两者相连通，使得冷却液流道在工作时，能够对磁性元件的底面以及侧面直接的热交换；
所述冷却液流道包括：呈椭圆形的流道本体；与所述流道本体和机壳腔室相配合的流道上盖；以及设置在所述机壳腔室侧壁上，与所述流道本体相连通的进液口和出液口；
所述流道本体设置在所述磁性元件安装腔室侧壁内；
所述插件开关管设置在磁性元件安装腔室外侧壁上；
所述贴片开关管通过导热胶与磁性元件安装腔室侧壁上端面进行热交换。
2.根据权利要求1所述的用于车载充电机或电压变换器的散热结构,其特征在于，所述插件开关管通过导热片与冷却液流道进行热交换。
3.根据权利要求2所述的用于车载充电机或电压变换器的散热结构,其特征在于，所述PCB板上设有若干上下贯穿的通孔，所述贴片开关管固定在PCB板上，且与通孔相对应设置，所述PCB板和冷却液流道之间设有绝缘膜，所述绝缘膜上设有导热胶，当PCB板与固定压紧在冷却液流道上后，导热胶通过PCB板上的通孔与贴片开关管接触，所述贴片开关管通过导热胶与冷却液流道进行热交换。
CN201810007168.3A 2018-01-04 2018-01-04 用于车载充电机或电压变换器的散热结构 Active CN108076617B (zh)

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