The invention is applicable to the technical field of
lithium iron phosphate batteries, and provides a protective shell of a
lithium iron phosphate battery and a preparation method, the protective shell comprises a main shell
assembly: the top of the main shell
assembly is provided with a top cover
assembly, and the outer wall of the main shell assembly is provided with a limiting frame; wherein the top cover assembly comprises a top cover, and the inner wall of the top cover is fixedly connected with an inner connection circuit board; through the arrangement of an
internal connection electric column piece, after the top cover is turned and locked, an
internal connection circuit board is pressed downwards, and an
internal connection electric column is connected with a connection electric head of a
lithium iron phosphate battery in the main shell assembly, so that the connection between the plurality of
lithium iron phosphate batteries and the internal connection circuit board is realized, and the connection between the plurality of
lithium iron phosphate batteries and an external charging mechanism is realized; the external charging device can be connected with external power taking equipment through an external charging mechanism; and due to the arrangement of the external charging mechanism, in the use process, a
wrench is wrenched and turned over, so that connection with the
lithium iron phosphate battery in the main shell assembly is realized through an external electric column, and the purpose of quick connection is achieved.