The invention discloses a battery frame locking device for a new energy vehicle. The battery frame locking device comprises a battery replacing frame, a battery replacing single bag and a locking assembly, the locking assembly comprises a wrapping and locking part and a bicycle lock part, and the bicycle lock part and the wrapping and locking part are arranged at the bottom of the battery replacing frame and the top of the battery replacing single bag correspondingly. The wrapping and locking part comprises a wrapping and locking fixing plate, a wrapping and locking fixing ring and a movable lock cylinder, the bottom of the wrapping and locking fixing plate is connected with the top of the battery replacing single bag, the top of the wrapping and locking fixing plate is connected with the first end of the wrapping and locking fixing ring, and the movable lock cylinder penetrates through the wrapping and locking fixing plate and is arranged in the wrapping and locking fixing ring; the top of the movable lock cylinder moves towards the wrapping lock fixing plate to be matched with the bicycle lock part, so that the bicycle lock part is buckled with the wrapping lock part. According to the battery frame locking device for the new energy vehicle, the lock cylinder is moved towards the wrapping lock fixing plate, so that the vehicle lock part and the wrapping lock part are matched to lock the battery replacing frame and the battery replacing single bag together, the vehicle lock part and the wrapping lock part are in butt joint conveniently, the precision requirement during butt joint of the battery frame locking device for the new energy vehicle is reduced, and the replacing efficiency is improved.

本发明公开了一种新能源车用电池框架锁紧装置，包括换电框架、换电单包和锁紧组件；锁紧组件包括包锁部和车锁部，车锁部、包锁部分别设置在换电框架的底部和换电单包的顶部；包锁部包括包锁固定板、包锁固定环和移动锁芯，包锁固定板的底部与换电单包的顶部连接，包锁固定板的顶部与包锁固定环的第一端连接，移动锁芯贯穿包锁固定板且设置在包锁固定环内部，移动锁芯的顶部朝向包锁固定板移动而与车锁部配合，使车锁部与包锁部扣合。本发明通过移动锁芯朝向包锁固定板的方向移动，使车锁部与包锁部配合将换电框架与换电单包锁合在一起，且车锁部与包锁部的对接方便，降低了新能源车用电池框架锁紧装置对接时精度要求，提高了更换效率。