Cause analysis and preventive control measures of terminal withdrawal
The quality of design and selection is designed and manufactured, not tested. Regarding the prevention of terminal withdrawal, we first start from design and selection, and the consideration indicators are listed here.
●Insertion force: the difficulty of the terminal assembly immediately. The smaller the resistance in the terminal pre-installed connector, the easier it is to pre-install in place. Therefore, the first evaluation index when selecting a type is the insertion force. The smaller the insertion force, the easier it is. When assembled, the risk of terminal withdrawal is less.
●Retention force: The linear pull-out force (ie retention force) of the terminal from the sheath. The greater the retention force, the harder it is to be ejected when the connector is inserted into each other. Here, when designing and selecting the type, consider the index and select the one with larger retention force. Connectors and Terminals. Figure Schematic diagram of holding force
●Amount of shaking: When the male and female connectors are inserted into each other, the shaking amount of the terminal in the sheath will significantly affect the terminal to be ejected. In order to reduce the risk of the risk of pin withdrawal when the male and female connectors are inserted, try to choose the terminal when designing and selecting. The same manufacturer as the connector (purpose: to ensure the minimum amount of shaking when the terminal and the connector are matched).