{"meta":{"id":"https:\/\/api.iclient.ifeng.com\/ipadtestdoc?aid=ucms_7zQx3Z9Kfvc","type":"doc","o":"1","documentId":"ucms_7zQx3Z9Kfvc"},"body":{"newStatus":"1","documentId":"ucms_7zQx3Z9Kfvc","staticId":"ucms_7zQx3Z9Kfvc","title":"汽车已经有蓄电池了,为什么还要发电机?","shareTitle":"汽车已经有蓄电池了,为什么还要发电机?","thumbnail":"http:\/\/d.ifengimg.com\/w150_h106_q100\/img1.ugc.ifeng.com\/newugc\/20200902\/10\/wemedia\/bf999d9dd13192ff4a15ec409bdfe16eac3e06a6_size24_w598_h399.jpeg","source":"","author":"","editorcode":"weMedia","editTime":"2020-09-02 10:18:33","updateTime":"2020\/09\/02 10:18:33","wapurl":"http:\/\/\/\/feng.ifeng.com\/c\/7zQx3Z9Kfvc","introduction":"","wwwurl":"http:\/\/\/\/feng.ifeng.com\/c\/7zQx3Z9Kfvc","commentsUrl":"ucms_7zQx3Z9Kfvc","commentCount":0,"text":"
“汽车还有发电机?”<\/p>
“车子不是有电池了吗?”<\/p>
这是小编最近听到一个有趣的疑惑,相信也并不是个别情况。<\/p>
车上所有电器的电源大部分时间来自发电机,而非蓄电池。所以发电机要保证稳定输出电源,汽车才能持续正常行驶。<\/p>
为什么说是“大部分”供电时间,而非全部呢?我们先了解一下发电机在汽车中的工作原理。<\/p>
<\/p>
蓄电池只是临时工<\/p>
车灯、音响、空调、中控显示屏、手机充电器………………现代人汽车上需要用电的设备越来越多,如果单靠蓄电池,2-3小时就可以耗完电池电量,只有发电机才能源源不断的提供充沛电能。<\/p>
<\/p>
从上图可以看到,蓄电池为发动机启动提供一刹那的电能,之后发动机再为发电机提供持续的动力,令发电机能不间断的产生电能供电器设备使用,甚至循环回去为蓄电池充电,这就是汽车一套完整的电能产生“路线”。<\/p>
只有当发动机停止工作,也就是我们常说的“熄火”状态下,蓄电池才会发挥“临时工”作用。<\/p>
发电机稳定才是王道<\/p>
<\/p>
发电机作为汽车的主要电源,如果选购劣质产品发生故障,会严重影响汽车的正常行驶,对驾驶安全也极为不利。<\/p>
试想想,如果夜间行车因为发电机故障而电池耗尽,车灯打不开、喇叭按不响,是不是有影响生命危险的意外风险?<\/p>
因此,发电机必须选择稳定、高质量的品牌。<\/p>","img":[{"url":"http:\/\/d.ifengimg.com\/mw640_q100\/x0.ifengimg.com\/res\/2020\/F56F9A91D41A964FEFEEB5BDAC56D178B55661D0_size23_w600_h465.jpeg","size":{"width":"600","height":"465"}},{"url":"http:\/\/d.ifengimg.com\/mw640_q100\/x0.ifengimg.com\/res\/2020\/2B4FFD6B49FC73735746CF8B6EE736A6ACD4D88E_size34_w640_h400.jpeg","size":{"width":"640","height":"400"}},{"url":"http:\/\/d.ifengimg.com\/mw640_q100\/x0.ifengimg.com\/res\/2020\/37267B6EDF405525269535F36ACED8A4DCC9F3C1_size43_w740_h526.jpeg","size":{"width":"640","height":"454"}}],"summary":"“汽车还有发电机?”“车子不是有电池了吗?”这是小编最近听到一个有趣的疑惑,相信也并不是个别情况。车上所有电器的电源大部分时间来自发电机,而非蓄电池。所以发电机","sharesummary":"“汽车还有发电机?”“车子不是有电池了吗?”这是小编最近听到一个有趣的疑惑,相信也并不是个别情况。车上所有电器的电源大部分时间来自发电机,而非蓄电池。所以发电机","commentType":"0","wemediaEAccountId":"1551428","showclient":"0","shareurl":"https:\/\/ishare.ifeng.com\/c\/s\/v002D5hAto3EGkhcW3FGl--bdi--KCH-_wWUCdH6-_I9eeHbVb4__","praise":"0","like_num":"0"}}