Tab connecting piece for battery test and connecting method

• Main Authors: WAN HUAFENG, ZHANG DAOZHEN, HAN XIAO, WU DI, TIAN JUN, ZHAO HONGYUE
• Format: Patent
• Language: Chinese; English
• Published: 14.06.2022
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; TESTING

The invention discloses a tab connecting piece for battery testing, which comprises a bolt, a ratchet gear nut and a fixing assembly matched with the ratchet gear nut, the lower part of the ratchet gear nut is a ratchet wheel, the fixing assembly is provided with an accommodating part, the accommodating part is provided with a limiting valve for preventing the ratchet wheel from being unscrewed, and the limiting valve can rotate in the accommodating part. A current and voltage acquisition terminal and a tab are arranged between the head of the bolt and the fixing assembly, an anti-rotation raised head is arranged at the position, close to the head, of a screw rod of the bolt, and an anti-rotation groove is formed in the corresponding position of the fixing assembly. The limiting valve abuts against the ratchet wheel, the bolt and the fixing assembly are relatively fixed through cooperation of the anti-rotation protruding head and the anti-rotation groove, and it is guaranteed that in a long-time charging and