CN105789156A - 一种igbt模块组件 - Google Patents
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Abstract
本发明属于电子元件领域,公开了一种IGBT模块组件,包括冷板以及固接在冷板上的IGBT模块,IGBT模块远离冷板的端面上设有接线端子,所述IGBT模块包括与端面相邻的侧面,所述侧面与冷板形成有导水槽。本发明通过侧面与冷板形成导水槽,能够使冷板上聚集的大量冷凝水经导水槽导引流出,而不会使冷凝水流到IGBT模块设有接线端子的端面,避免出现IGBT模块上的接线端子间极间短路的情况,防止电气安全事故的发生。而且能够使IGBT模块在大功率散热场合安全高效的工作,拓展了IGBT模块的应用领域。
Description
技术领域
本发明涉及一种电子元件,尤其涉及一种IGBT模块组件。
背景技术
IGBT模块是由IGBT(绝缘栅双极型晶体管芯片)与FWD(续流二极管芯片)通过特定的电路桥接封装而成的模块化半导体产品,IGBT模块的散热效率是制约其性能和可靠性的关键因素。
目前主要采用风冷散热和液冷散热这两种散热方式来解决IGBT模块的散热问题,其中风冷散热是使用风扇吹风或者抽风为IGBT模块散热,该方法结构简单、价格低廉、安全可靠,但是噪音较大且散热效率不高,在发热严重的大功率场合很难应用。
液冷散热是使用单位热容较大的冷媒液体作为冷板的循环冷却介质,随后将IGBT模块10安装在冷板20上,并向冷板20上传递热量,冷板20内设有冷媒管30,通过冷媒管30内的冷媒液体进行换热,以实现对IGBT模块的散热,如图1所示,该方法效率高、噪音小,非常适用于IGBT模块发热严重的大功率场合。但是,在使用液冷散热的过程中,冷板20上会形成并聚集大量的冷凝水,工作功率越大,冷凝水越多。随着冷凝水的不断聚集以及机组的震动,冷凝水会在冷板20表面及IGBT模块10表面形成无序的水流,极易导致IGBT模块10的接线端子间形成极间短路,造成电气安全事故。
发明内容
本发明的目的在于提供一种IGBT模块组件,以解决现有液冷散热方式中因冷凝水引起的IGBT模块上接线端子间的极间短路,造成电气安全事故的问题。
为达此目的,本发明采用以下技术方案:
一种IGBT模块组件,包括冷板以及固接在冷板上的IGBT模块,IGBT模块远离冷板的端面上设有接线端子,所述IGBT模块包括与端面相邻的侧面,所述侧面与冷板形成有导水槽。
作为优选,所述侧面靠近冷板的一端向IGBT模块的中心倾斜设置。
作为优选,所述侧面靠近冷板的一端向IGBT模块中心倾斜的角度为30°-60°。
作为优选,所述侧面靠近冷板的一端向IGBT模块中心倾斜的角度为45°。
作为优选,所述侧面靠近冷板的一端开设半圆形的开口槽,所述开口槽与冷板的表面形成所述导水槽。
作为优选,所述IGBT模块为多面锥台结构或者圆锥台结构。
作为优选,所述IGBT模块为四面锥台结构,所述侧面设置为等腰梯形。
作为优选,所述冷板内绕设有若干冷媒管,所述冷媒管内流通有冷媒介质。
作为优选,所述冷板为金属板,其内部贯穿设有供冷媒管绕设的连接孔。
作为优选,所述IGBT模块上开设有若干安装孔,所述冷板对应安装孔的位置设有螺纹孔,所述螺纹孔避开所述连接孔设置。
本发明的有益效果:通过侧面与冷板形成导水槽,具体是将IGBT模块的侧面靠近冷板的一端向IGBT模块的中心倾斜设置,形成导水槽,能够使冷板上聚集的大量冷凝水经导水槽导引流出,而不会使冷凝水流到IGBT模块设有接线端子的端面,避免出现IGBT模块上的接线端子间极间短路的情况,防止电气安全事故的发生。而且能够使IGBT模块在大功率散热场合安全高效的工作,拓展了IGBT模块的应用领域。
附图说明
图1是本发明现有技术中的IGBT模块与冷板的装配结构示意图;
图2是本发明实施例1中IGBT模块与冷板的装配结构的立体示意图;
图3是本发明实施例1中IGBT模块与冷板的装配结构的侧视图;
图4是本发明实施例2中IGBT模块与冷板的装配结构的立体示意图。
图中:
1、冷板;2、IGBT模块;3、接线端子;4、导水槽;5、开口槽;11、冷媒管;21、端面;22、侧面;23、安装孔;10、IGBT模块;20、冷板;30、冷媒管。
具体实施方式
下面结合附图并通过具体实施方式来进一步说明本发明的技术方案。
本发明提供一种IGBT模块组件,如图2以及图3所示,该IGBT模块组件包括冷板1以及固接在冷板1上的IGBT模块2,其中冷板1为长方体结构,其内绕设有若干冷媒管11,在冷媒管11内流动有冷媒介质,用于对IGBT模块2散热。具体的,在冷板1的内部开设有贯穿冷板1设置的连接孔(图中未示出),该连接孔用于绕设冷媒管11。在冷板1与IGBT模块2相接触的表面上设有若干螺纹孔(图中未示出),该螺纹孔避开上述连接孔设置。本实施例中,优选的,冷板1采用金属板材制成,进而具有较好的导热性能,能够将IGBT模块2散发的热量传递到冷板1上,并由冷媒管11内的冷媒介质进行散热,进一步的提高了散热效果。
IGBT模块2包括远离冷板1的端面21以及与该端面21相邻的侧面22,其中在端面21上设有若干接线端子3,接线端子3可以通过螺钉与外界形成电气连接,侧面22与冷板1共同形成导水槽4。在冷板1开始对IGBT模块2进行散热时,会聚集大量冷凝水,通过导水槽4,能够对冷凝水进行引导,使冷凝水从导水槽4流出,而不会流到IGBT模块2设置有接线端子3的表面,避免了接线端子3间极间短路的情况出现,阻止了电气安全事故的发生。
本实施例中,侧面22靠近冷板1的一端向IGBT模块2的中心倾斜设置,通过倾斜设置的侧面22与冷板1共同形成导水槽4,将冷凝水导引流出。
优选的,本实施例中,将侧面22靠近冷板1的一端向IGBT模块2中心的倾斜角度设置为30°-60°,该角度的设置,能够使得导水槽4具有更佳的导水效果,且工艺制造、材料节省方面有着更高的综合效益。更为优选的,本实施例将上述倾斜角度设置为45°。
上述IGBT模块2可以选用为多面锥台结构或者圆锥台结构,只需满足其侧面22靠近冷板1的一端是向IGBT模块2的中心倾斜即可。本实施例中,IGBT模块2为四面锥台结构,相对应的,侧面22则为梯形结构,且其与冷板1接触的一边为上底边,即长度较短的一边。进而能够形成导水槽4的结构。优选的,该侧面22为等腰梯形结构。
在IGBT模块2上开设有若干与冷板1的螺纹孔一一对应的安装孔23,通过螺栓穿过上述安装孔23,并与螺纹孔螺纹连接,能够将IGBT模块2固定在冷板1上。本实施例中,上述冷板1的螺纹孔避开连接孔设置,能够避免在组装冷板1和IGBT模块2时,冷板1内的冷媒管11对组装造成干涉,也防止冷媒管11被挤压变形,出现损坏。
本实施例通过上述IGBT模块组件的结构,无论该IGBT模块组件怎么放置,都不会出现冷凝水流到IGBT模块2设有接线端子3的一面。例如,在IGBT模块组件竖直放置情况下,冷凝水在IGBT模块2的顶部的侧面22与冷板1之间聚集,由于侧面22的倾斜阻挡作用,冷凝水会被引导至冷板1及IGBT模块2的两侧,沿着冷板1与IGBT模块2两侧形成的导水槽4流下,不会在IGBT模块2设有接线端子3所在的端面21上形成水流,避免出现接线端子3之间的极间短路;在IGBT模块组件水平放置(冷板1在上,IGBT模块2在下)情况下,由于IGBT模块2的侧面22形成的伞状外形结构,冷凝水会沿着IGBT模块2的四个侧面22流下,进而保护接线端子3不会接触到冷凝水;在IGBT模块组件水平放置(IGBT模块2在上,冷板1在下)情况下,冷凝水在冷板1的表面及与IGBT模块2的接触面附近区域聚集冷凝水,由于重力影响,冷凝水不会流到IGBT模块2的端面21上,也就不会使接线端子3接触到冷凝水。
通过上述IGBT模块组件的结构,能够使IGBT模块在大功率散热场合安全高效的工作,拓展了IGBT模块的应用领域。
实施例2:
本实施例在实施例1的基础上,对导水槽4的结构进一步的改进,具体的,如图4所示,本实施例在IGBT模块2的侧面22靠近冷板1的一端开设半圆形的开口槽5,通过开口槽5与冷板1共同形成导水槽4,当冷凝水聚集时,可以通过上述导水槽4直接流出IGBT模块2外。通过设置开口槽5,能够在IGBT模块组件竖直放置时,冷凝水会沿冷板1表面以及侧面22流入开口槽5与冷板1形成的导水槽4内,不会流到IGBT模块2设有接线端子3所在的端面21上。
其余结构与实施例1均相同,在此不再赘述。
显然,本发明的上述实施例仅仅是为了清楚说明本发明所作的举例,而并非是对本发明的实施方式的限定。对于所属领域的普通技术人员来说,在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等,均应包含在本发明权利要求的保护范围之内。
Claims (10)
1.一种IGBT模块组件,包括冷板(1)以及固接在冷板(1)上的IGBT模块(2),IGBT模块(2)远离冷板(1)的端面(21)上设有接线端子(3),其特征在于,所述IGBT模块(2)包括与端面(21)相邻的侧面(22),所述侧面(22)与冷板(1)形成有导水槽(4)。
2.根据权利要求1所述的IGBT模块组件,其特征在于,所述侧面(22)靠近冷板(1)的一端向IGBT模块(2)的中心倾斜设置。
3.根据权利要求2所述的IGBT模块组件,其特征在于,所述侧面(22)靠近冷板(1)的一端向IGBT模块(2)中心倾斜的角度为30°-60°。
4.根据权利要求3所述的IGBT模块组件,其特征在于,所述侧面(22)靠近冷板(1)的一端向IGBT模块(2)中心倾斜的角度为45°。
5.根据权利要求1所述的IGBT模块组件,其特征在于,所述侧面(22)靠近冷板(1)的一端开设半圆形的开口槽(5),所述开口槽(5)与冷板(1)的表面形成所述导水槽(4)。
6.根据权利要求1所述的IGBT模块组件,其特征在于,所述IGBT模块(2)为多面锥台结构或者圆锥台结构。
7.根据权利要求6所述的IGBT模块组件,其特征在于,所述IGBT模块(2)为四面锥台结构,所述侧面(21)设置为等腰梯形。
8.根据权利要求1所述的IGBT模块组件,其特征在于,所述冷板(1)内绕设有若干冷媒管(11),所述冷媒管(11)内流通有冷媒介质。
9.根据权利要求8所述的IGBT模块组件,其特征在于,所述冷板(1)为金属板,其内部贯穿设有供冷媒管(11)绕设的连接孔。
10.根据权利要求9所述的IGBT模块组件,其特征在于,所述IGBT模块(2)上开设有若干安装孔(23),所述冷板(1)对应安装孔(23)的位置设有螺纹孔,所述螺纹孔避开所述连接孔设置。
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ES17785325T ES2878154T3 (es) | 2016-04-22 | 2017-04-01 | Conjunto de módulo de IGBT |
EP17785325.6A EP3447796B1 (en) | 2016-04-22 | 2017-04-01 | Igbt module assembly |
US16/095,651 US10811333B2 (en) | 2016-04-22 | 2017-04-01 | IGBT module assembly |
PCT/CN2017/079246 WO2017181840A1 (zh) | 2016-04-22 | 2017-04-01 | 一种igbt模块组件 |
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CN108199120A (zh) * | 2018-03-20 | 2018-06-22 | 华霆(合肥)动力技术有限公司 | 热管理装置及电池模组 |
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US10811333B2 (en) | 2020-10-20 |
US20190131205A1 (en) | 2019-05-02 |
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EP3447796A4 (en) | 2019-10-09 |
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