Magnetic coupling resonance type wireless energy transmission device based on panel magnetic core
A technology of wireless energy transmission and flat magnetic core, applied in the direction of circuit devices, electromagnetic wave systems, electrical components, etc., to achieve the effect of improving transmission distance and efficiency, small size, and reducing operating frequency
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specific Embodiment approach 1
[0036] Specific implementation mode 1: the following combination figure 1 To explain this embodiment, the magnetic coupling resonance type wireless energy transmission device based on a flat magnetic core in this embodiment includes an energy supply circuit 1, and it also includes a resonance control circuit 2, a coil drive circuit 3, and an energy transmitting side capacitor bank 4 , Energy transmitting subsystem 5, energy receiving subsystem 6, energy receiving side capacitor bank 7, receiving energy conversion circuit 8,
[0037] The output DC voltage of the energy supply circuit 1 is used as the DC bus voltage V of the coil drive circuit 3 dc , The coil drive circuit 3 is under the control of the pulse drive signal generated by the resonance control circuit 2, the output frequency is f, and the amplitude is positive and negative V dc The AC square wave signal is applied to the resonance circuit composed of the energy transmitting side capacitor bank 4 and the transmitting coil...
specific Embodiment approach 2
[0045] Specific implementation manner 2: the following combination Figure 2 to Figure 5 This embodiment is described. This embodiment is a further description of the first embodiment. The energy transmitting subsystem 5 and the energy receiving subsystem 6 have the same structure.
[0046] The energy transmitting subsystem 5 is composed of a shielded aluminum plate 5-1, an insulating plate 5-2, a flat magnetic core 5-3, two card plates 5-4 and a transmission coil 5-5.
[0047] An insulating plate 5-2 is set in the center on the shielding aluminum plate 5-1, and a flat magnetic core 5-3 is set in the center on the insulating plate 5-2. Both ends of the flat magnetic core 5-3 are respectively fixed to the insulating plate through a clamping plate 5-4. On 5-2, the transmission coil 5-5 is fixed on the flat magnetic core 5-3;
[0048] The energy transmitting subsystem 5 and the energy receiving subsystem 6 are arranged oppositely, and a uniform air gap is left between the energy transmi...
specific Embodiment approach 3
[0051] Specific implementation manner three: the following combination Figure 2 to Figure 5 To illustrate this embodiment, this embodiment is a further description of the second embodiment. The transmission coil 5-5 is fixed on the air gap side surface of the flat magnetic core 5-3, and the transmission coil 5-5 is spirally wound A plate-shaped coil, and the shape of the plate-shaped coil is the same as that of the plate core 5-3; or the transmission coil 5-5 is spirally wound on the plate core 5-3; the energy transmitting subsystem 5 The air gap side surfaces of the flat magnetic core 5-3 of the energy receiving subsystem 6 and the energy receiving subsystem 6 are respectively regular polygons, circles or ellipses.
[0052] The transmission coil 5-5 on the flat magnetic core 5-3 can be divided into two modes: plane spiral and winding spiral.
[0053] The plate core 5-3 can be selected to have a symmetrical shape.
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