Electromagnetic shielding layer and wireless electrical energy transmission device having electromagnetic shielding layer

A wireless electrical energy transmission device having a magnetic field shielding layer, comprising:

• an electrical energy transmitting end, the electrical energy transmitting end comprising an electrical energy transmitting coil, the electrical energy transmitting coil receiving alternating current and transforming the alternating current into a high frequency transmitting magnetic field;
• and
• an electrical energy receiving end, the electrical energy receiving end comprising an electrical energy receiving coil and an electromagnetic shielding layer, the electrical energy receiving coil inducing the high frequency transmitting magnetic field to get corresponding high frequency voltage, the high frequency voltage being rectified and filtered to get applicable output voltage for supplying to electrical equipment;
• the electromagnetic shielding layer being disposed between the electrical energy receiving coil and the electrical equipment, the electromagnetic shielding layer comprising a first shielding layer and a second shielding layer;
• the first shielding layer being a magnetic shielding layer composed of a hollow area and a solid area, the hollow area being used to increase magnetoresistance of the high frequency transmitting magnetic field to lower a change of an inductance value of the electrical energy transmitting coil during transmission of the magnetic field;
• the second shielding layer being disposed beneath the first shielding layer to shield the magnetic field penetrating the first shielding layer for protecting the electrical equipment.