A wireless charging device and method

Abstract

The invention provides wireless charging equipment applied to a transmitting terminal. The wireless charging equipment comprises a wireless charging coil, a charging circuit connected with the wireless charging coil, and a power port connected with the wireless charging circuit. The included angle between the direction of a magnetic field line in a magnetic field excited by the wireless charging coil in the electrifying process and the plane where the wireless charging coil is located is larger than 0 degree and smaller than 90 degrees, in other words, the magnetic field line is neither perpendicular to the plane where the wireless charging coil is located nor parallel to the plane where the wireless charging coil is located, the direction of the magnetic field line is oblique, and therefore no matter whether the wireless charging coil of a receiving terminal used in cooperation with the transmitting terminal is in a perpendicular mode or a paralleled mode, the wireless charging coil of the receiving terminal can intersect with the magnetic field line in the magnetic field excited by the wireless charging coil of the transmitting terminal to form an energy transmission channel. Accordingly, the transmitting terminal can charge the receiving terminal, electric energy loss can be reduced, and charging efficiency can be improved.

Description

technical field [0001] The invention belongs to the field of wireless charging, and in particular relates to a wireless charging device and method. Background technique [0002] Wireless charging technology (Wireless Charging Technology) is a kind of wireless power transmission technology, using near-field induction, the power supply equipment transmits energy to the power-consuming device, the device uses the received energy to charge the battery, and at the same time for its for its own operation. [0003] Commonly used wireless charging methods in the prior art mainly include inductive and resonance methods. However, no matter which solution is adopted, it relies on the magnetic field excited by the coil at the transmitting end (power supply device) to act on the coil at the receiving end (device to be charged) to form an energy transmission channel so that the transmitting end can charge the receiving end. [0004] However, the magnetic field formed by the existing des...

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Problems solved by technology

[0006] In view of this, the purpose of the present invention is to provide a wireless charging device and method, which can adjust the radiation angle of the induced electromagnetic field generated in the wireless charging coil, so as to solve the problem of uncertain magnetic field direction of the transmitter coil in the prior art. As a result, it is easy for the magnetic field lines excited by the transmitter coil to not intersect with the receiver coil, resulting in a problem of large power loss

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