CN201670099U - 一种超微型低速纯电动轿车后置后驱底盘 - Google Patents

一种超微型低速纯电动轿车后置后驱底盘 Download PDF

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CN201670099U
CN201670099U CN2010201639433U CN201020163943U CN201670099U CN 201670099 U CN201670099 U CN 201670099U CN 2010201639433 U CN2010201639433 U CN 2010201639433U CN 201020163943 U CN201020163943 U CN 201020163943U CN 201670099 U CN201670099 U CN 201670099U
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chassis
pure electric
superminiature
guard
axle
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鲍文光
陈燎
齐伟华
周小福
陈方立
鲍君敏
陈训
陈上伟
朱海滨
何志刚
侯永涛
江浩斌
陈阳
潘健
胡隽秀
陈龙
李仲兴
周孔亢
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SHANDONG XINDAYANG ELECTRIC BIKE CO Ltd
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鲍文光
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Priority to PCT/CN2010/000732 priority patent/WO2011130883A1/zh
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    • B60K1/00—Arrangement or mounting of electrical propulsion units
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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
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Abstract

一种超微型低速纯电动轿车后置后驱底盘，属于电动汽车用底盘技术领域。包括车架主体及设置在车架主体上的前桥与后桥，其特征在于所述的前桥两端设置前轮，所述的后桥为驱动桥，后桥上对称设置两台电机，两台电机一端相连，另一端分别设置变速器，变速器输出端传动连接后轮。本实用新型的有益效果是：1.创新型的前后悬架设计，均采用简化杆系和轻量化零部件设计；2.轻量化的制动系统，零部件多采用轻质材料和小尺寸设计；3.轻量化的底盘平台，整个底盘系统重量控制在150kg以下，为超微型纯电动轿车的开发提供了共享底盘平台；4.在后桥上对称设置电机，传动路线短，效率高，动力性强。

Description

一种超微型低速纯电动轿车后置后驱底盘
技术领域
本实用新型属于电动汽车用底盘技术领域，具体涉及一种超微型低速纯电动轿车后置后驱底盘。
背景技术
经调研发现，国内现有的电动轿车底盘均为高尔夫球车或常规燃油轿车底盘改型而成，而最轻的轿车底盘平台为奥拓底盘，整车整备质量为645Kg，其重量远远超出超微型纯电动轿车的要求，使用这样底盘的电动汽车往往存在续航里程短、动力性差、操稳性和平顺性差等缺点。因此，开发一种性能良好的轻型底盘将极大地推动超微型纯电动轿车的发展。
实用新型内容
针对现有技术中存在的问题，本实用新型的目的在于设计提供一种超微型低速纯电动轿车用的轻量化的底盘的技术方案，使用该底盘的电动汽车能够达到续航里程长、动力性好、操稳性和平顺性强等优点。
所述的一种超微型低速纯电动轿车后置后驱底盘，包括车架主体及设置在车架主体上的前桥与后桥，其特征在于所述的前桥两端设置前轮，所述的后桥为驱动桥，后桥上对称设置两台电机，两台电机一端相连，另一端分别设置变速器，变速器输出端传动连接后轮。
所述的一种超微型低速纯电动轿车后置后驱底盘，其特征在于所述的前桥包括转向机，转向机通过锥销固定连接转向节节臂，转向节上端插接设置前支柱总成，转向节下端通过锥销固定连接下摆臂，下摆臂为A字形结构，下摆臂与车架主体连接，转向节外侧通过设置的前轮毂轴承(连接前轮辋连接法兰，前轮辋连接法兰上固定连接制动盘。
所述的一种超微型低速纯电动轿车后置后驱底盘，其特征在于所述的变速器输出轴通过花键连接半轴内端，半轴外端通过花键连接后轮辋连接法兰，后轮辋连接法兰上固定设置后制动盘，所述的后轮辋连接法兰上安装轮辋和后轮。
所述的一种超微型低速纯电动轿车后置后驱底盘，其特征在于所述的转向机的输出端通过花键依次连接方向传动轴和方向管柱，方向管柱上端设置组合开关和方向盘，所述的方向管柱与转向机通过锁紧螺栓与车架主体连接。
所述的一种超微型低速纯电动轿车后置后驱底盘，其特征在于所述的前支柱总成上端与车架主体连接，下端插接设置于转向节，并通过锁紧螺栓固定。
所述的一种超微型低速纯电动轿车后置后驱底盘，其特征在于所述的转向节由铝质合金材料构成。
所述的一种超微型低速纯电动轿车后置后驱底盘，其特征在于所述的半轴外套接设置轴套，轴套内侧与设置在变速器外侧的变速器端盖固定连接，轴套外侧固定连接轴套外法兰，轴套外法兰上固定设置后制动卡钳。
所述的一种超微型低速纯电动轿车后置后驱底盘，其特征在于所述的轴套上设置有横向推力杆支座、后减振器支座和纵摆臂支座，横向推力杆支座、后减振器支座和纵摆臂支座分别通过螺栓连接横向推力杆、后支柱总成和纵摆臂。
所述的一种超微型低速纯电动轿车后置后驱底盘，其特征在于所述的横向推力杆、后支柱总成和纵摆臂的一端分别连接横向推力杆支座、后减振器支座和纵摆臂支座，另一端通过螺栓连接车架主体。
所述的一种超微型低速纯电动轿车后置后驱底盘，其特征在于所述的纵摆臂由铝质合金材料构成。
上述的一种超微型低速纯电动轿车后置后驱底盘，结构紧凑，设计合理，本实用新型的有益效果是：1.创新型的前后悬架设计，均采用简化杆系和轻量化零部件设计；2.轻量化的制动系统，零部件多采用轻质材料和小尺寸设计；3.轻量化的底盘平台，整个底盘系统重量控制在150Kg以下，为超微型纯电动轿车的开发提供了共享底盘平台；4.在后桥上对称设置电机，传动路线短，效率高，动力性强。
附图说明
图1为本实用新型的结构示意图；
图2为本实用新型中前桥的结构示意图；
图3为图2的侧视图；
图4为图3的局部剖视图；
图5为本实用新型中后桥的结构示意图；
图6为图5的侧视图；
图7为图5的剖视图。
图中：1-车架主体；2-前支柱总成；3-转向机；4-转向节；5-下摆臂；6-前制动卡钳；7-前轮辋连接法兰；8-制动盘；9-方向传动轴；10-方向管柱；11-组合开关；12-方向盘；13-前轮毂轴承；14-变速器端盖；15-轴套；16-半轴；17-后制动卡钳；18-轴套外法兰；19-后轮辋轴承；20-后制动盘；21-后轮辋连接法兰；22-开槽螺母；23-轮辋紧固螺钉；24-纵摆臂；25-后减振紧固螺栓；26-后减振支座；27-后支柱总成；28-纵摆臂支座；29-纵摆臂紧固螺栓；30-后卡钳紧固螺钉；31-横向推力杆支座；32-横向推力杆紧固螺母；33-横向推力杆；34-变速器；35-电机。
具体实施方式
以下结合说明书附图来进一步说明本实用新型。
如图所示，一种超微型低速纯电动轿车后置后驱底盘包括了车架主体，车架主体两端分别设置了前桥与后桥，后桥为驱动桥。
前桥布置：前桥中的前支柱总成2包括减振器及上支柱总成，前支柱总成2通过上支柱总成和车架主体1连接，前支柱总成2下端直接插入铝质合金材料转向节4的安装孔中，并通过锁紧螺栓固定；转向节4下端通过球销锥度配合与下摆臂5连接，下摆臂5为A字形下摆臂，转向节4的节臂处同样通过锥销与转向机3固定，转向节4上端还固定设置了前制动卡钳6，前轮辋连接法兰7通过设置在转向节4中的前轮毂轴承13支撑在转向节4中，前轮辋连接法兰7外侧用开槽螺母，前轮辋连接法兰7通过其上设置的螺钉固定连接轮辋与前轮；转向机3的输出轴上通过花键依次配合方向传动轴9与方向管柱10连接，方向管柱10上端安装有组合开关11和方向盘12，方向管柱10、转向机3和下摆臂5都通过锁紧螺栓固定在车架主体1上。
后桥布置：后桥上对称设置两台电机35，两台驱动电机35和变速器34左右对称布置，电机35和变速器34的桥壳外端加工有与外形尺寸一致的变速器端盖14，通过六个螺杆在两侧锁紧构成整体式驱动桥主体；变速器34输出轴通过花键连接半轴16内端，半轴16外端通过花键连接后轮辋连接法兰21，变速器34左右两侧通过半轴16分别驱动左右后轮辋连接法兰21，后轮辋连接法兰21上固定设置后制动盘20，后轮辋连接法兰21上安装轮辋和后轮；半轴16外套接设置轴套15，轴套15内侧与设置在变速器34外侧的变速器端盖14固定连接，半轴16通过后轮辋轴承19支撑在轴套外法兰17中，轴套外法兰17上通过后卡钳紧固螺钉30固定设置后制动卡钳17。后支柱总成27包括减振器，后支柱总成27上吊耳通过螺栓与车架主体1连接，下吊耳通过后减振紧固螺栓25固定在后减振支座26上；纵摆臂24前吊耳通过螺栓与车架主体1连接，后吊耳通过纵摆臂紧固螺栓29固定在纵摆臂支座28上；横向推力杆33一端固定在横向推力杆支座31上，另一端通过横向推力杆紧固螺母32与紧固螺栓与车架主体1连接；后减振支座26、纵摆臂支座28和横向推力杆支座31直接焊接在轴套15上。
本实用新型提供了双电机后置后驱的布置方案。该方案前悬架采用改进型的麦弗逊悬架，包括：A字型下摆臂代替纵向和横向推力杆，铝质合金材料转向节，优化尺寸设计的前支柱总成。后悬架采用拖曳臂式，包括铝质合金材料的纵摆臂和横向推力杆、经过尺寸优化的后桥壳、一体式弹簧减振器。制动系统采用4碟刹设计，由于超微型纯电动轿车的整备质量小，速度低，无需采用传统轿车用制动系统，本实用新型重新设计匹配了结构更加简单的制动系统，包括：铝质合金材料的制动卡钳，高摩擦系数的摩擦片，厚度减薄的制动盘。转向系统包括：转向机、方向传动轴、铝质合金材料转向管柱和小直径方向盘。控制器采用软硬件结合方式。动力传动总成均采用双电机加行星减速器形式，后置后驱布置时，动力总成通过法兰连接直接支撑在轴套管上，动力经半轴直接输送到轮胎。

Claims (10)

1.一种超微型低速纯电动轿车后置后驱底盘，包括车架主体(1)及设置在车架主体(1)上的前桥与后桥，其特征在于所述的前桥两端设置前轮，所述的后桥为驱动桥，后桥上对称设置两台电机(35)，两台电机(35)一端相连，另一端分别设置变速器(34)，变速器(34)输出端传动连接后轮。
2.如权利要求1所述的一种超微型低速纯电动轿车后置后驱底盘，其特征在于所述的前桥包括转向机(3)，转向机(3)拉杆通过锥销固定连接转向节(4)节臂，转向节(4)上端插接设置前支柱总成(2)，转向节(4)下端通过锥销固定连接下摆臂(5)，下摆臂(5)为A字形结构，下摆臂(5)与车架主体(1)连接，转向节(4)外侧通过设置的前轮毂轴承(13)连接前轮辋连接法兰(7)，前轮辋连接法兰(7)上固定连接制动盘(8)。
3.如权利要求1所述的一种超微型低速纯电动轿车后置后驱底盘，其特征在于所述的变速器(34)输出轴通过花键连接半轴(16)内端，半轴(16)外端通过花键连接后轮辋连接法兰(21)，后轮辋连接法兰(21)上固定设置后制动盘(20)，所述的后轮辋连接法兰(21)上安装轮辋和后轮。
4.如权利要求2所述的一种超微型低速纯电动轿车后置后驱底盘，其特征在于所述的转向机(3)的输出端通过花键依次连接方向传动轴(9)和方向管柱(10)，方向管柱(10)上端设置组合开关(11)和方向盘(12)，所述的方向管柱(10)与转向机(3)通过锁紧螺栓与车架主体(1)连接。
5.如权利要求2所述的一种超微型低速纯电动轿车后置后驱底盘，其特征在于所述的前支柱总成(1)上端与车架主体(1)连接，下端插接设置于转向节(4)，并通过锁紧螺栓固定。
6.如权利要求2所述的一种超微型低速纯电动轿车后置后驱底盘，其特征在于所述的转向节(4)由铝质合金材料构成。
7.如权利要求3所述的一种超微型低速纯电动轿车后置后驱底盘，其特征在于所述的半轴(16)外套接设置轴套(15)，轴套(15)内侧与设置在变速器(34)外侧的变速器端盖(14)固定连接，轴套(15)外侧固定连接轴套外法兰(18)，轴套外法兰(18)上固定设置后制动卡钳(17)。
8.如权利要求7所述的一种超微型低速纯电动轿车后置后驱底盘，其特征在于所述的轴套(15)上设置有横向推力杆支座(31)、后减振器支座(26)和纵摆臂支座(28)，横向推力杆支座(31)、后减振器支座(26)和纵摆臂支座(28)分别通过螺栓连接横向推力杆(33)、后支柱总成(27)和纵摆臂(24)。
9.如权利要求7所述的一种超微型低速纯电动轿车后置后驱底盘，其特征在于所述的横向推力杆(33)、后支柱总成(27)和纵摆臂(24)的一端分别连接横向推力杆支座(31)、后减振器支座(26)和纵摆臂支座(28)，另一端通过螺栓连接车架主体(1)。
10.如权利要求8所述的一种超微型低速纯电动轿车后置后驱底盘，其特征在于所述的纵摆臂(24)由铝质合金材料构成。
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