Patent ID: 11958351
Assignee: SHANGHAI DIANBA NEW ENERGY TECHNOLOGY CO., LTD.
Field: Transport (Mechanical engineering)
Classification: CPC B  H  Y | IPC B  H

Claim 0:
1. A locking method for mounting a battery to a fixing seat of an electric vehicle using a locking device, the locking device comprising:
a lock base configured to provide a locking position, and comprising a lock body having a surface provided with a lock groove recessed towards the inside of the lock body, the lock body being provided with a lock tongue groove and a lock tongue movably mounted in the lock tongue groove, and the lock tongue groove being in connection with the lock groove;
a lock shaft comprising a shaft rod, the shaft rod being configured to be inserted into the lock groove of the lock base to perform unlocking and locking; and
a lock connecting rod movably connected with the lock base through the lock tongue, wherein lock tongues of a plurality of lock bases are controlled simultaneously by a single lock connecting rod to perform synchronous locking of the plurality of lock bases, and wherein the lock connecting rod comprises a rod member, and a second positioning steel magnet is mounted on the rod member,
wherein the locking method comprises:
moving the battery from a bottom of the electric vehicle into the fixing seat under a lifting action of a battery-changing mobile platform; and
inserting the shaft rod of the lock shaft around the battery into the lock groove through an opening of the lock groove on the lock base; and
wherein after moving the battery from the bottom of the electric vehicle into the fixing seat under the lifting action of the battery-changing mobile platform, the locking method further comprises:
pushing the lock connecting rod to move upwards by an unlocking member, and driving the lock tongue to open the opening of the lock groove; and
determining whether the lock connecting rod is currently in an unlocked state or in a locked state by the second positioning steel magnet stays at or passes through a sensing device provided on a moving track of the second positioning steel magnet, when the rod member is moved.