Charging device and electronic device

The embodiment of the utility model provides a charging device, which is used for charging a mobile robot, and is characterized in that the charging device comprises a guide part, at least one side of the guide part is placed close to the ground, so that the mobile robot moves to the guide part from the ground; the first limiting part is arranged on one side of the guide part; the second limiting part is of a protruding structure arranged in the middle of the guiding part, and the width of the protruding structure is smaller than the distance between the two wheels in the width direction of the mobile robot; the third limiting part is arranged on one side of the length direction of the second limiting part so as to limit the moving distance of the mobile robot in the length direction of the second limiting part; and the conductive switch is arranged on the second limiting part, and when the mobile robot moves to be close to or in contact with the third limiting part, the conductive switch is conducted with a