| 摘要 |
A coupling for connecting a charging assembly with a wet battery at the charging of the wet battery, for example a wet battery for a loading truck, comprises two coupling elements (2, 102) of which one is connected with the battery and the other is connected with the charging assembly. At the charging of the battery the coupling elements are connected with each other for connecting the battery to the charging assembly. The coupling comprises two coding pins (10, 110) positioned in one coupling element each, the coding pins being adapted to cooperate so as to prevent or allow connection of the coupling elements with each other in order to provide that only batteries and coupling assemblies which are suitable for cooperation can be connected with each other. The coupling comprises also a duct (18, 118) for gas or liquid, for example with the object of supplying air to the battery during the charging thereof. The duct (18, 118) for gas or liquid is included in the coding pins (10, 110) of the coupling.
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