▎ 摘　　要

NOVELTY - The utility model claims a power device protective sleeve, comprising a first protective sleeve and the ladder-shaped sliding grooves, the inner wall of the first protective sleeve is opened with a first fixing hole, and the first protective sleeve of the two side walls are provided with a trapezoidal groove, one side of the first protective sleeve is provided with a second protective sleeve, and the front surface of the first protective sleeve is embedded with a loudspeaker, the inner side of the trapezoidal groove wall is provided with a limiting hole, the inner side wall of the limiting hole is fixedly connected with a second contact, the inner side wall of the first fixing hole is embedded with a first contact; one end of said first contact is fixedly connected with a first spring, one end of the first spring is fixedly connected with a first graphite column. In the utility model, by the user after the first protective sleeve is sleeved outside of the power device, is inserted into the trapezoidal groove first protective sleeve side wall provided in the second protective sleeve side wall fixing the trapezoidal block is connected, so it is convenient for users to install and disassemble the protection sleeve.