Casing with electromagnetic shielding function

The utility model relates to a sleeve with electromagnetic shielding function, comprising a first flame-retardant rubber layer, the first flame-retardant rubber layer is wrapped with an insulating layer, the insulating layer is wrapped with a shielding layer, and the shielding layer The outside is wrapped with a second flame-retardant rubber layer, the second flame-retardant rubber layer is wrapped with a surface wear-resistant layer, the first flame-retardant rubber layer and the second flame-retardant rubber layer are embedded with reinforcing fibers, and the shield The layer contains a first aluminum winding tape at 45° to the central axis of the casing and a second aluminum winding tape at 45° to the central axis of the casing. The double-layer aluminum winding tape in the casing ensures that the casing has Good electromagnetic shielding performance, under the condition of 30MHZ1500MHZ, the shielding effect can reach 65dB, ensuring that the cable has good communication and anti-interference capabilities, and effectively improving the communication quality of the cable; the flame retardant performance is better, and it has better anti-aging properties. , Has a longer service life.