CN108779963B - 冷却部件及蓄电模块 - Google Patents
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Abstract
本发明提供一种冷却部件(13),具备:封装体(26),在薄板部件(32)液密性地接合的状态下划分形成有多个小室(33);制冷剂(27),封入于多个小室(33)各自的内部;和吸收部件(37),配置于多个小室(33)各自的内部并吸收制冷剂(27),多个小室(33)分别具备气体状态的制冷剂(27)凝结的凝结区域(40)。
Description
技术领域
本说明书中公开的技术涉及冷却部件及蓄电模块。
背景技术
在现有技术中,作为冷却部件(例如热管)公知有专利文献1所记载的部件。该热管在用金属材料制成的管内部液密性地封入有导热流体。
现有技术文献
专利文献
专利文献1:日本特开平11-23169号公报
发明内容
发明所要解决的课题
根据上述结构,为了封入导热流体,对管来说需要有一定的强度。这是因为当导热流体从发热体接收热量而蒸发时,导热流体体积增大,管内压力会升高。在管内液密性地封入导热流体且使用强度较高的管会导致制造成本的增大。
作为解决上述问题而设想的技术,考虑到一种冷却部件,其具备:由薄板部件液密性地接合而成的封装体、封入于所述封装体的制冷剂及配置于所述封装体内并吸收所述制冷剂的吸收部件,所述吸收部件中设置有所述制冷剂蒸发成为气体的蒸发区域,所述封装体中设置有供气体状态的所述制冷剂凝结成为液体的凝结区域。
根据上述设想的技术,被吸收部件所收集的液体状态的制冷剂,在蒸发区域吸收来自热源的热量而蒸发。此时,由于从热源夺走了气化热使热源的温度下降。在蒸发区域变为气体的制冷剂在封装体的内部移动到达凝结区域。在该凝结区域,气体状态的制冷剂凝结变为液体。此时,放出气化热。被放出的热量传递至薄板部件,从薄板部件的外表面向冷却部件的外部扩散。
另一方面,在凝结区域液化了的制冷剂被吸收部件所吸收在吸收部件的内部移动到达蒸发区域。然后上述循环重复进行。
然而,根据上述设想的技术,存在如下情况:在远离凝结区域的区域,在凝结区域液化了的制冷剂在到达该区域前便蒸发了。这样一来,在远离凝结区域的区域吸收部件干燥,担心产生对热源的冷却不能做出充分贡献的部分。其结果担忧不能充分地冷却热源。
本说明书公开的技术基于上述的情况被完成,以提高冷却部件的冷却性能为目的。
用于解决课题的技术方案
本说明书中公开的技术是一种冷却部件,具备:在薄板部件液密性地接合的状态下划分形成有多个小室的封装体、封入于所述多个小室各自的内部的制冷剂和配置于所述多个小室各自的内部并吸收所述制冷剂的吸收部件,所述多个小室分别具备供气体状态的所述制冷剂凝结的凝结区域。
根据上述结构,封装体被区划为多个小室,在该各小室中设置有凝结区域。由此,在凝结区域凝结变为液体的制冷剂被吸收部件所吸收,能够快速地向吸收部件整体扩散。其结果,在吸收部件中产生不存在制冷剂而干燥的部分这一情况得以抑制,因而吸收部件中产生对冷却没有贡献的部分这一情况得以抑制。由此能够使冷却部件的冷却效率提高。
作为本说明书中公开的技术的实施方式优选以下方式。
优选在所述多个小室中分别配置有至少一个所述吸收部件。
根据上述的结构,由于形成在各小室配置有至少一个吸收部件的结构,能够考虑各小室的冷却效率而针对每个小室单独设计吸收部件的大小、材质、形状及小室中容纳的吸收部件的个数等。由此能够使冷却部件的冷却效率提高。
本说明书公开的技术是一种蓄电模块,具备上述的冷却部件和至少外表面的一部分与所述冷却部件接触的蓄电元件。
根据上述的结构,能够通过冷却部件高效率地冷却蓄电元件。
发明效果
根据本说明书公开的技术,能够使冷却部件的冷却效率提高。
附图说明
图1是表示实施方式1的冷却部件的两张薄板部件的俯视图
图2是表示将两张薄板部件热熔敷的状态的俯视图
图3是表示在各小室容纳吸收部件的工序的俯视图
图4是表示吸收部件的俯视图
图5是表示电池模块的俯视图
图6是表示其他的实施方式(3)的吸收部件的制造工序的俯视图
具体实施方式
<实施方式1>
参照图1~图5对本说明书中公开技术的实施方式1进行说明。如图5所示,本实施方式的蓄电模块10具备蓄电元件12和与蓄电元件12的外表面的一部分接触的冷却部件13。在以下的说明中,以图1到图5的右方为右方,以图1到图5的下方为前方进行说明。另外对于形成相同形状的多个部件有时有对一部分的部件附以标号,对其他部件省略标号。
(蓄电元件12)
蓄电元件12通过在一对电池用层压板之间夹有未图示的蓄电要素并以热熔敷等公知的手法将电池用层压板的侧边缘液密性地接合而成。如图5所示,从蓄电元件12的右端边缘,形成金属箔状的正极端子24和负极端子25在与电池用层压板的内表面液密状态下从电池用层压板的内侧向外侧突出。正极端子24和负极端子25在蓄电元件12的右端边缘在前后方向空开间隔并列配置。正极端子24及负极端子25分别与蓄电要素电连接。
在本实施方式中,作为蓄电元件12可用例如锂离子二次电池、镍氢二次电池等的二次电池,另外作为蓄电元件12也可用双电层电容器、锂离子电容器等的电容器。这样作为蓄电元件12可以根据需要适宜地选择任意的蓄电元件12。
(冷却部件13)
如图4所示,冷却部件13由在液密性地形成的封装体26的内部封入制冷剂27而成。封入于封装体26内的制冷剂27的量可以根据需要适当选择。在本实施方式中,由于制冷剂27被后述的吸收部件37所吸收,因而表示制冷剂27的标号也记载为指示吸收部件37。制冷剂27可使用选自例如全氟化碳、氢氟醚、氢氟酮、氟惰性液体、水、甲醇、乙醇等醇类中的一个或多个。制冷剂27可以具有绝缘性也可以具有导电性。
在本实施方式中,冷却部件13的前后方向的长度尺寸被设定为得大于蓄电元件12的前后方向的长度尺寸。由此,冷却部件13具有相比重叠于该冷却部件13上的蓄电元件12向前方及后方突出的部分。
(封装体26)
封装体26通过将形成大致的长方形状的两张薄板部件32重叠并将薄板部件32的规定部分以粘合、熔敷、焊接等公知的手段液密性地接合而成。封装体26中形成有薄板部件32被接合的接合部34。
薄板部件32通过在金属制薄板的单面上层叠合成树脂制的膜而成。作为构成金属制薄板的金属,能够根据需要适宜地选择铝、铝合金、铜、铜合金等任意的金属。作为构成合成树脂制的膜的合成树脂,能够根据需要适宜地选择聚乙烯、聚丙烯等的聚烯烃、聚对苯二甲酸丁二醇酯、聚对苯二甲酸乙二醇酯等的聚酯纤维、尼龙6、尼龙66等的聚酰胺等任意的合成树脂。
本实施方式的封装体26由在薄板部件32中层叠有合成树脂制的膜的面彼此重叠的状态下进行热熔敷而成。
封装体26在薄板部件32液密性地接合的状态下划分形成有多个(本实施方式中为6个)小室33。在本实施方式在前后方向上形成有2列的小室33,另外在左右方向上形成有3列的小室33。各小室33在前后左右的侧边缘被接合的状态下液密性地封闭。小室33形成大致长方形形状。多个小室33形成相同形状且相同大小。
如图5所示,冷却部件13中相比蓄电元件12向前方及后方突出的部分为用于使气体状态的制冷剂27凝结相变为液体的凝结区域40。在该凝结区域40中,在封装体26的内部,变为气体状态而温度较高的制冷剂27放热相变为液体。此时放散的凝结热传递至薄板部件32,从薄板部件32的外表面向冷却部件13的外部放散热量。
冷却部件13中的在前侧形成3个小室33的前端部分别成为所述的凝结区域40,冷却部件13中的在后侧形成的3个小室33的后端部也分别成为上述凝结区域40。
(吸收部件37)
在形成于封装体26的小室33各自的内部,配置有具有比小室33的形状稍小的形状的吸收部件37。吸收部件37形成大致长方形的薄板状。
吸收部件37由能够吸收制冷剂27的材料形成。吸收部件37既可以是使用能够吸收制冷剂27的材料加工成的纤维做成的纺织品也可以为无纺布。作为无纺布的形式,可以是纤维薄板、纤维网(仅由纤维构成的薄膜状薄片)或毡(毯状纤维)。作为构成吸收部件37的材料既可以是天然纤维也可以是由合成树脂制成的合成纤维,还可以是使用天然纤维和合成纤维双方的材料。
作为构成吸收部件37的材料,优选的是将配置于铅垂方向的吸收部件37的下端浸渍于制冷剂27内后,在60秒后制冷剂27向吸收部件37上方移动时的制冷剂27的上端位置和制冷剂27的液面之间的高度尺寸为5mm以上。由此,由于能够使制冷剂27的吸收性提高,因而能够使冷却部件13的冷却性能提高。
(制造工序的一例)
接下来对本实施方式的蓄电模块10的制造工序的一例进行说明。另外制造工序不限定于以下记载。
如图1所示,将两张薄板部件32以使层叠于薄板部件32的合成树脂制膜彼此相对的方式重叠。
接下来,如图2所示将薄板部件32的规定位置热熔敷而接合。在本实施方式中,在薄板部件32中的前后方向的大致中央位置形成有沿左右方向延伸的接合部34。另外,在薄板部件32中的在左右方向上将薄板部件32三等分的位置及左右两侧边缘,通过热熔敷形成在前后方向上延伸的共4个接合部34。
根据上述的工序区划出6个小室33。另外在该阶段,位于薄板部件32前侧的3个小室33的前端部开放。并且,位于薄板部件32后侧的3个小室33的后端部也开放。
接下来,如图3所示,在各小室33中分别容纳一个吸收部件37。在位于薄板部件32的前侧的3个小室33中,从前端部容纳吸收部件37,在位于薄板部件32的后侧的3个小室33中,从后端部容纳吸收部件37。
接下来,如图4所示,通过热熔敷形成接合部3,将在薄板部件32的前侧形成的3个小室33的前端部封闭。同样地,通过热熔敷形成接合部34将在薄板部件32的后侧形成的3个小室33的后端部封闭。由此形成冷却部件13。
之后将蓄电元件12重叠于冷却部件13。此时配置成使冷却部件13的前端部及后端部从蓄电元件12的前端部及后端部向外突出。由此完成蓄电模块10。
(实施方式的作用、效果)
接下来关于本实施方式的作用、效果进行说明。根据本实施方式冷却部件13具备:在薄板部件32液密性地接合的状态下划分形成有多个小室33的封装体26、封入于多个小室33各自的内部的制冷剂27、配置于多个小室33各自的内部并吸收制冷剂27的吸收部件37,多个小室33分别具备供气体状态的制冷剂27凝结的凝结区域40。
根据上述结构,封装体26被划分为多个小室33,该各小室33中设置有凝结区域40。由此,在凝结区域40凝结变为液体的制冷剂27被吸收部件37所吸收并能够快速向吸收部件37的整体扩散。其结果,在吸收部件37产生不存在制冷剂27而干燥的部分这一情况得以抑制,因而产生吸收部件37中的对冷却没有贡献的部分这一情况得以抑制。由此,能够使冷却部件13的冷却效率提高。
另外根据本实施方式,多个小室33分别配置有至少一个吸收部件37。
根据上述结构,由于形成了各小室33中配置至少一个吸收部件37的结构,能够考虑各小室33的冷却效率而对每个小室33单独设计其吸收部件37的大小、材质、形状及容纳于小室33的吸收部件37的个数等。由此,能够使冷却部件13的冷却效率提高。
另外,本实施方式的蓄电模块10具备冷却部件13和至少外表面的一部分与冷却部件13接触的蓄电元件12。
根据上述结构,能够通过冷却部件13高效率地冷却蓄电元件12。
<其他实施方式>
本说明书公开的技术不限定于通过上述记述及附图说明的实施方式,例如如下实施方式也包含于本说明书所公开技术的技术范围。
(1)在本实施方式中,虽然是在各小室33中容纳一个吸收部件37的结构,但不限于此,也可以是在各小室33中容纳2个以上的多个吸收部件37的结构。
(2)在本实施方式中,虽然各小室33是相同形状且相同大小,但不限于此,也可以是小室33的形状大小各不相同的结构。
(3)如图6所示,冷却部件13也可以通过在两张薄板部件32之间夹设一个吸收部件37,并将薄板部件32和吸收部件37热熔敷成划分形成有多个小室33的形状而形成。根据此结构,形成了一个吸收部件37中的与各小室33对应的部分位于各小室33内的结构。
(4)在本实施方式中,虽然设为在一个冷却部件13中形成了6个小室33的结构,但不限于此,也可以设为在一个冷却部件13中形成2~5个或7个以上的小室33的结构。
标号说明
10:蓄电模块
12:蓄电元件
13:冷却部件
26:封装体
27:制冷剂
32:薄板部件
33:小室
34:接合部
37:吸收部件
40:凝结区域
Claims (3)
1.一种冷却部件,具备:
封装体,在薄板部件液密性地接合的状态下划分形成有多个小室;
制冷剂,封入于所述多个小室各自的内部;和
吸收部件,配置于所述多个小室各自的内部并吸收所述制冷剂,所述多个小室分别具备供气体状态的所述制冷剂凝结的凝结区域,
在所述薄板部件的内表面上层叠合成树脂制的膜,所述吸收部件包括合成纤维,将一个所述吸收部件夹设在两张所述薄板部件之间,并通过热熔敷来形成划分成所述多个小室的形状。
2.根据权利要求1所述的冷却部件,
在所述多个小室分别配置至少一个所述吸收部件。
3.一种蓄电模块,具备:
权利要求1或权利要求2所述的冷却部件;和
至少外表面的一部分与所述冷却部件接触的蓄电元件。
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JP2016052322A JP6628092B2 (ja) | 2016-03-16 | 2016-03-16 | 冷却部材、及び蓄電モジュール |
PCT/JP2017/009433 WO2017159530A1 (ja) | 2016-03-16 | 2017-03-09 | 冷却部材、及び蓄電モジュール |
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US3651865A (en) * | 1970-08-21 | 1972-03-28 | Us Air Force | Cooled electronic equipment mounting plate |
JPS59154B2 (ja) * | 1978-11-22 | 1984-01-05 | パイオニア株式会社 | 電子機器の筐体 |
US4931905A (en) * | 1989-01-17 | 1990-06-05 | Grumman Aerospace Corporation | Heat pipe cooled electronic circuit card |
US5642776A (en) * | 1996-02-27 | 1997-07-01 | Thermacore, Inc. | Electrically insulated envelope heat pipe |
JPH1123169A (ja) | 1997-07-01 | 1999-01-26 | Harness Sogo Gijutsu Kenkyusho:Kk | ヒートパイプ |
US5937937A (en) * | 1998-06-18 | 1999-08-17 | Motorola, Inc. | Heat sink and method for removing heat from a plurality of components |
JP2001165584A (ja) * | 1999-12-02 | 2001-06-22 | Tokai Rubber Ind Ltd | シート状ヒートパイプ |
US6446706B1 (en) * | 2000-07-25 | 2002-09-10 | Thermal Corp. | Flexible heat pipe |
DE102008011466A1 (de) * | 2008-02-27 | 2009-09-03 | Robert Bosch Gmbh | Batteriemodul |
CN101738118B (zh) * | 2009-11-03 | 2012-08-01 | 赵耀华 | 具有多层微孔管阵列的三维平板热管及其加工工艺 |
US20110206964A1 (en) * | 2010-02-24 | 2011-08-25 | Gm Global Technology Operations, Inc. | Cooling system for a battery assembly |
US9291405B2 (en) * | 2011-08-02 | 2016-03-22 | Ford Global Technologies, Llc | Battery pack liquid channel and coldplate cooling system |
JP6043555B2 (ja) * | 2012-09-12 | 2016-12-14 | 昭和電工株式会社 | 組電池の冷却構造 |
KR101428383B1 (ko) * | 2013-04-26 | 2014-08-08 | 현대자동차주식회사 | 친환경 차량의 배터리모듈 간접 냉각장치 |
JP6121854B2 (ja) * | 2013-09-18 | 2017-04-26 | 東芝ホームテクノ株式会社 | シート型ヒートパイプまたは携帯情報端末 |
JP6057952B2 (ja) * | 2014-07-09 | 2017-01-11 | 東芝ホームテクノ株式会社 | シート型ヒートパイプ |
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