CPC H04R 1/086 (2013.01) | 18 Claims |
1. An electronic device comprising:
a circuit board comprising a first through hole;
a protective assembly, arranged on one side of the circuit board, comprising a first protective unit, a second protective unit, and a cavity communicating with the first through hole, wherein the first protective unit comprises a third through hole communicating with the cavity along a first direction, the second protective unit comprises a second through hole communicating with the first through hole, and comprises a supporting surface facing the third through hole, and a projection of the supporting surface is overlapped with a projection of the third through hole along the first direction; and
a protective film fixedly coupled to the protective assembly, the protective film arranged in the cavity to divide the cavity into a first cavity and a second cavity, wherein the first cavity is in communication with the second through hole, and the second cavity is in communication with the third through hole;
the circuit board is attached to the second protective unit, a projection of the first through hole is overlapped with a projection of the second through hole along the first direction.
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