Safety device of medium-high voltage system with power module

A safety device of a medium-high voltage system, comprising:

• a cabinet comprising an accommodation seat, wherein the accommodation seat forms an accommodation space and is connected to a medium-voltage charged region, and the accommodation seat has an opening;
• a power module spatially corresponding to the accommodation seat, wherein the power module is allowed to pass through the opening and detachably disposed in the accommodation seat, so as to be electrically connected to the medium-voltage charged region;
• a metal cover plate pivotally connected to an upper edge of the accommodation seat and grounded, wherein when the metal cover plate is in a first position, the opening is closed and the medium-voltage charged region is shield, wherein the power module is allowed to pass through the opening to push the metal cover plate, so that the metal cover plate is pivotally rotated to a second position and abutted against a top surface of the power module, wherein when the power module is placed into the accommodation space and set in the accommodation seat, the power module is in an electrical connection with the medium-voltage charged region, wherein when the power module is detached from the accommodation seat, the metal cover plate is rotated to the first position, so that the opening is closed to shield the medium-voltage charged region;
• and
• at least two elastic latches spatially corresponding to the metal cover plate, disposed adjacent to the opening, wherein each of the at least two elastic latches comprises an elastic element located between a hook and an operation portion, so that when metal cover plate is rotated to the first position, the hook prevents the metal cover plate from rotating to the second position, wherein after the power module is placed into the accommodation space through the opening, the operation portions are engaged with a front end of the power module to prevent the power module from being detached from accommodation seat.