CN114103615B - 电动车辆 - Google Patents
电动车辆 Download PDFInfo
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- B60K1/00—Arrangement or mounting of electrical propulsion units
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60K1/00—Arrangement or mounting of electrical propulsion units
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
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- B60K11/04—Arrangement or mounting of radiators, radiator shutters, or radiator blinds
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- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
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- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
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- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/242—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
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- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
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- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
- B60K2001/0405—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
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Abstract
电动车辆具备:电源,所述电源配置于地板面板的下方;冷却器,所述冷却器配置于电源的下方;传热材料,所述传热材料夹在电源与冷却器之间并被压缩;防护板,所述防护板的刚性比冷却器的刚性高,所述防护板以从下侧覆盖冷却器的方式安装于电源的底部;及弹性体,所述弹性体夹在冷却器与防护板之间并被压缩。
Description
技术领域
本说明书公开的技术涉及在地板面板的下方配置有电源而且在电源的下方安装有冷却器的电动车辆。
背景技术
在电动车辆中,向行驶用的马达供给电力的电源有时配置于地板面板的下方。在日本特开2017-193290、日本特开2014-191916中公开了这样的电动车辆的例子。在日本特开2014-191916的电动车辆中,在电源的下方安装有冷却器。
发明内容
在电源与冷却器之间夹有传热性高的传热材料。为了提高从电源向冷却器的传热性,传热材料在电源与冷却器之间被压缩。为了强力地压缩传热材料,需要将冷却器强力地压靠于电源。另一方面,由于冷却器优选较轻,因此由薄的金属板制成,刚性低。因此,为了将传热材料整体保持为压缩了的状态,需要在多个部位将冷却器压靠于电源。在将冷却器的多个部位固定的情况下,生产率不高。本说明书涉及在车身的地板面板的下方配置有电源而且在电源的下方安装有冷却器的电动车辆,提供生产率优异的构造。
本说明书公开的电动车辆具备:电源,所述电源配置于地板面板的下方;冷却器,所述冷却器配置于电源的下方;传热材料,所述传热材料夹在电源与冷却器之间并被压缩;防护板,所述防护板的刚性比冷却器的刚性高,所述防护板以从下侧覆盖冷却器的方式安装于电源的底部;及弹性体,所述弹性体夹在冷却器与防护板之间并被压缩。防护板保护电源和冷却器免受在行驶中从道路上溅起的小石子等的影响。
在本说明书公开的电动车辆中,刚性比冷却器的刚性高的防护板经由弹性体将冷却器压靠于电源。通过用刚性高的防护板将冷却器压靠于电源,从而即使不固定冷却器的多个部位,也能够将传热材料保持为压缩了的状态。即,本说明书公开的电动车辆的生产率优异。此外,“冷却器的刚性”、“防护板的刚性”是指冷却器和防护板的弯曲刚性。
本说明书公开的技术的详细情况和进一步的改良在以下的“具体实施方式”中进行说明。
附图说明
以下将参照附图来说明本发明的示例性实施方式的特征、优点、以及技术上和工业上的意义,其中同样的标号表示同样的要素,并且附图中:
图1是电动汽车的车身的分解立体图。
图2是电动汽车的车身的立体图。
图3是电动汽车的车身的仰视图。
图4是在图3的IV-IV线处剖切而得到的车身的剖视图。
图5是在图3的V-V线处剖切而得到的车身的剖视图。
具体实施方式
参照附图对实施例的电动车辆进行说明。实施例的电动车辆为电动汽车2。图1示出电动汽车2的车身3的分解立体图。
图1是从车身3拆卸了配置在车身3的地板面板4的下方的部件而得到的图。在图1及以后的图中,除了配置于地板面板4的下方的部件以外,省略了组装于车身3的部件的图示。地板面板4配置在一对门槛5(rocker)之间。地板面板4相当于车室的地板。在地板面板4的下方安装有电池包10、冷却器20、防护板30。在电池包10的侧方安装有能量吸收构件40(后述)。
电池包10储存向电动汽车2的行驶用的马达(未图示)供给的电力。电池包10固定于一对门槛5。电池包10在利用中发热,因此在电池包10的下方配置冷却器20。为了提高从电池包10向冷却器20的传热性,在电池包10与冷却器20之间夹着传热材料29。冷却器20具有供制冷剂流动的流路,传热材料29配置在流路的上方,后面将详细叙述。
为了保护冷却器20和电池包10免受在行驶中溅起的小石子等的影响,以从下侧覆盖冷却器20的方式安装防护板30。在冷却器20与防护板30之间夹着弹性体31。弹性体31具有沿着冷却器20的边缘的框形状。
图2是将电池包10、传热材料29、冷却器20、弹性体31、防护板30安装于车身3的图。在图2中,传热材料29、冷却器20、弹性体31隐藏于防护板30而看不到。在图2中,能够看到安装于电池包10的侧方的能量吸收构件40。能量吸收构件40沿着门槛5在车身3的前后方向上延伸。
传热材料29例如是发泡性的树脂,具有压缩性(弹性)。传热材料29夹在电池包10与冷却器20之间并被压缩。另一方面,冷却器20由薄的两块金属板制成,弯曲刚性低。因此,为了仅利用冷却器20将传热材料29保持为压缩了的状态,必须将冷却器20的多个部位固定于电池包10。在将多个部位固定的情况下,生产率不高。
在实施例的电动汽车2中,利用防护板30,即使不固定冷却器20的多个部位,也能够将传热材料29保持为压缩了的状态。如前所述,防护板30为了保护冷却器20免受在行驶中溅起的小石子等的影响,板厚比冷却器20所使用的金属板厚,弯曲刚性比冷却器20的弯曲刚性高。因此,在冷却器20与防护板30之间夹着弹性体31。弹性体31例如是发泡性的树脂,夹在冷却器20与防护板30之间并被压缩。刚性比冷却器20的刚性高的防护板30经由弹性体31将冷却器20压靠于电池包10。实施例的电动汽车2不需要为了将传热材料29保持为压缩了的状态而将冷却器20的多个部位固定,生产率优异。
图3示出电动汽车2的车身3的仰视图。此外,图3的记为“Front”/“Rear”的方向箭头表示车身3的“前”/“后”。图3的记为“Right”的方向箭头表示从车身3的后方观察前方时的“右”。在以后的图中,“Front”/“Right”等的意思也是相同的。
电池包10、冷却器20、弹性体31被防护板30覆盖,由虚线描绘。电池包10位于一对门槛5之间。另外,电池包10位于将一对门槛5连结的前横梁6a与后横梁6b之间。
冷却器20具备两条纵向流路21a和多条横向流路21b。在图3中,为了有助于理解,用灰色示出纵向流路21a、横向流路21b及弹性体31。多条横向流路21b连结在两条纵向流路21a之间。向一方的纵向流路21a供给冷却水。冷却水被分配到多条横向流路21b,通过另一方的纵向流路21a返回到循环装置。在图3中,省略了冷却器20的制冷剂入口和制冷剂出口的图示。以下,有时将纵向流路21a和横向流路21b合起来统称为流路21。在多条流路21中的每一条流路21与电池包10之间夹着传热材料29。在图3中,流路21的形状也相当于传热材料29的形状。
在从下方观察车身3时,弹性体31具有框形状,以包围冷却器20(流路21)的方式配置。
接着,使用图4、图5对流路21的附近的构造进行说明。图4示出在图3的IV-IV线处剖切而得到的车身3的剖面。图4示出车身3的右侧的门槛5的周边的剖面。车身3的左侧的门槛5的周边也具有相同的构造。
电池包10由壳体14和收容于壳体14的多个电池单元11构成,所述壳体14由顶板12和底板13构成。在图4(及图5)中,多个电池单元11以简单的1个矩形来简化地表示。电池单元11经由传热材料28固定于壳体14的底板13。
在电池包10的侧面安装有第1能量吸收构件32,在第1能量吸收构件32的外侧安装有第2能量吸收构件40。能量吸收构件32、40是在车身的前后方向上延伸的中空的梁。能量吸收构件32、40在障碍物从车身3的侧方碰撞了时压扁而吸收碰撞的能量,从而保护电池包10。以下,为了简化说明,将“能量吸收构件”简称为“EA构件”。电池包10经由第1EA构件32和第2EA构件40被支承于门槛5。
第1EA构件32利用粘接剂粘接于电池包10的壳体14的侧面,并且利用螺栓45和螺母46固定于电池包10和防护板30。托架15从壳体14的底面朝向侧方延伸,该托架15和防护板30利用螺栓45和螺母46固定于第1EA构件32。
第2EA构件40也利用螺栓45和螺母46固定于第1EA构件32。凸缘43从第2EA构件40的上板41延伸,该凸缘43利用螺栓45和螺母46固定于第1EA构件32。如前所述,第2EA构件40是中空的梁,在其内部具备加强纵板47和斜撑(日文:筋交)48。加强纵板47将第2EA构件40的上板41与下板42连结。
第2EA构件40利用螺栓51和螺母52固定于门槛5。门槛5也是在车身3的前后方向上延伸的中空的梁。门槛5由有棱角的U形状的门槛内板5a和门槛外板5b构成。门槛内板5a和门槛外板5b均具有凸缘,凸缘彼此接合,形成中空的门槛5。
凸缘5c从门槛5的底面向下方延伸。为了以不与凸缘5c干涉的方式将第2EA构件40固定于门槛5,使用筒状的间隔件53。间隔件53贯通第2EA构件40的上板41,间隔件53的下端与第2EA构件40的下板抵接,间隔件53的上端与门槛5的底面抵接。螺栓51从下侧通过间隔件53,利用螺母52固定于门槛5。利用间隔件53在门槛5与第2EA构件40之间确保间隙,第2EA构件40不与凸缘5c干涉地固定于门槛5。
相当于车室的地板的地板面板4固定于门槛5。电池包10配置在地板面板4的下方。
在电池包10的壳体14的底面安装有托架15、16。托架15、16以向下方突出的方式弯曲。在壳体14的底面,以与托架15、16的突出部相对的方式设置有凹部13a。在托架15、16的突出的部位固定有防护板30。防护板30通过螺栓17和螺母18固定于托架15、16(即电池包10)。穿过了托架15、16的螺栓17的顶端位于设置于壳体14的底面处的凹部13a的空间。
通过采用以向下方突出的方式弯曲的托架15、16,并且以与托架15、16相对的方式设置凹部13a,从而能够以不在壳体14的底部设置孔的方式将防护板30固定于电池包10。由于不需要在壳体14的底部设置孔,因此能够防止水浸入壳体14内。
图4还示出了冷却器20的纵向流路21a的周边的放大图。如前所述,冷却器20是将两块金属板粘合而制成的,在两块金属板之间形成有纵向流路21a。冷却器20通过传热材料29粘接于电池包10的底板13。传热材料29具有弹性,以被压缩了的状态夹在冷却器20与电池包10之间。
弹性体31夹在冷却器20与防护板30之间并被压缩。防护板30经由弹性体31将冷却器20压靠于电池包10的壳体14的底面。图4的纵向流路21a是车身3的右侧的纵向流路。纵向流路21a的右侧、即冷却器20的右缘20a由防护板30经由弹性体31压靠于电池包10的底面。虽然省略了图示,但冷却器20的左缘也由防护板30经由弹性体31压靠于电池包10的底面。
图5示出在图3的V-V线处剖切而得到的车身3的剖面。图5示出电池包10的前端的剖面。图5还示出了冷却器20的横向流路21b的周边的放大图。
电池包10位于车身3的前侧的横梁(前横梁6a)的后方。图5所示的横向流路21b位于多条横向流路21b中的最前列。该横向流路21b的前侧、即冷却器20的前缘20b由防护板30经由弹性体31压靠于电池包10的底面。在电池包10的前侧,在底板13也安装有以向下方突出的方式弯曲的托架16,防护板30通过螺栓17和螺母18固定于托架16。在壳体14的底面,以与托架16的突出部相对的方式设置有凹部13a。与图4的情况同样地,穿过了托架16的螺栓17的顶端位于凹部13a的空间。如前所述,通过采用以向下方突出的方式弯曲的托架16,并且以与托架16相对的方式设置凹部13a,从而能够以不在壳体14的底部设置孔的方式将防护板30固定于电池包10。虽然省略了图示,但冷却器20的后缘也由防护板30经由弹性体31压靠于电池包10的底面。
如图3~图5所示,在从下方观察车身3时,弹性体31以包围冷却器20的边缘的方式配置。防护板30经由框形状的弹性体31将冷却器20的边缘压靠于电池包10。冷却器20由弯曲刚性低的金属制成,但通过由弯曲刚性高的防护板30将冷却器20压靠于电池包10的底面,从而传热材料29以被压缩了的状态保持于冷却器20与电池包10之间。经由框形状的弹性体31,从而传热材料29遍及冷却器20的整个面地被保持为被压缩了的状态。实施例的电动汽车2为了将广泛分布于冷却器20的上表面的传热材料29保持为被压缩了的状态,利用刚性高的防护板30。由于不需要将刚性低的冷却器20的多个部位分别独立地固定,因此电动汽车2的生产率高。
对与在实施例中说明了的技术相关的注意点进行叙述。在从下方观察车身3时,弹性体31以包围冷却器20的方式配置。弹性体31防止水浸入防护板30与冷却器20之间。但是,框形状的弹性体31也可以在某些部位被切断。
配置在冷却器20与电池包10之间的传热材料29也可以是初始状态为凝胶状的粘接剂。由于防护板30将冷却器20压靠于电池包10,因此在电动汽车2的制造过程中,凝胶状的粘接剂被保持为被压缩了的状态并固化。
实施例的电池包10相当于电源的一例。电源也可以是燃料电池。在本说明书中的电动车辆中,包括为了用于行驶除了具备电动马达以外还具备发动机的混合动力车。
以上,对本发明的具体例进行了详细说明,但这些只不过是例示,并不限定权利要求书。在权利要求书所记载的技术中,包括对以上例示的具体例进行的各种变形、变更。本说明书或附图中说明了的技术要素单独或通过各种组合发挥技术上的有用性,并不限定于申请时权利要求所记载的组合。另外,本说明书或附图中例示的技术能够同时达成多个目的,达成其中一个目的本身就具有技术上的有用性。
Claims (4)
1.一种电动车辆,其特征在于,包括:
电源,所述电源配置于地板面板的下方;
冷却器,所述冷却器配置于所述电源的下方;
传热材料,所述传热材料夹在所述电源与所述冷却器之间并被压缩;
防护板,所述防护板的刚性比所述冷却器的刚性高,所述防护板以从下侧覆盖所述冷却器的方式安装于所述电源的底部;
弹性体,所述弹性体夹在所述冷却器与所述防护板之间并被压缩;
安装于所述电源的底板,并以向下方突出的方式弯曲的托架;及
从下插通所述防护板和所述托架,并将所述防护板固定于所述托架的螺栓;
在所述底板上以与所述托架相对的方式设置有向上方凹进的凹部,
穿过了所述托架的所述螺栓的顶端位于所述凹部的空间。
2.根据权利要求1所述的电动车辆,其特征在于,
所述弹性体具有沿着所述冷却器的边缘的框形状。
3.根据权利要求1或2所述的电动车辆,其特征在于,
所述弹性体为发泡性的树脂。
4.根据权利要求1或2所述的电动车辆,其特征在于,
所述传热材料是凝胶状的粘接剂固化而成的。
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