Screening box

The utility model discloses the box is in with the setting including the box that has the shielding cavity shielding case and test fixture in the shielding cavity, the box includes the iron -nickel alloy layer and the aluminum plate layer of range upon range of setting, the iron -nickel alloy layer sets up the box is close to the internal surface of shielding cavity one side, aluminum plate layersets up a side surface of shielding cavity is kept away from to the box, the aluminum plate layer parcel the shielding cavity for shielding ambient signal, the iron -nickel alloy layer covers at leastaluminum plate layer. Can solve high frequency signal and disturb, can be applicable to again and avoid low frequency signals to disturb, can provide better testing ring border, guarantee the test accuracy. 本实用新型箱体包括具有屏蔽腔的箱体和设置在所述屏蔽腔内的屏蔽盒以及测试治具，所述箱体包括层叠设置的铁镍合金层和铝板层，所述铁镍合金层设置在所述箱体靠近所述屏蔽腔侧的内表面，所述铝板层设置在所述箱体远离屏蔽腔的侧表面，所述铝板层包裹所述屏蔽腔，用于屏蔽外界信号；所述铁镍合金层至少覆盖所述铝板层。既能解决高频信号干扰，又能适用于避免低频信号干扰，可以提供较好的测试环境，保证测试准确性。