Embodiments of the present application relate to the technical field of
electromagnetic shielding, and provide a shielding device. The shielding device provided in the embodiments of the present application comprises: at least one first fixing member, used for being arranged on a
chassis; rotating members, wherein each rotating member is provided with at least one connecting portion, the connecting portion is connected to the first fixing member, and the rotating members are communicated with the interior of the
chassis; at least one locking member, correspondingly slidably connected to the connecting portion, wherein the rotating members are configured to rotate relative to the first fixing members, so that the locking members are fitted to or separated from the connecting portions; and a shielding
assembly, wherein one end of the shielding
assembly is communicated with the corresponding rotating member, and the shielding
assembly is used for conveying a
cooling medium into the
chassis by means of the corresponding rotating member. In this way, the shielding assembly is fixed on the chassis by means of the rotating members and the locking members, and electromagnetic signals inside and outside the chassis are shielded by means of the shielding assembly, thereby preventing external electromagnetic signals from entering the chassis and interfering with the normal operation of the
system; moreover, the electromagnetic signals in the chassis are prevented from leaking into the environment.