Wireless charging system and wireless charging method
A wireless charging and wireless transmission technology, applied in battery circuit devices, current collectors, electric vehicles, etc., can solve problems such as the existence of blind spots, increase the number of coils, and increase costs, achieve a good user experience, avoid intervention, and achieve accurate alignment. accurate effect
Active Publication Date: 2018-07-20
QINGDAO LU YU ENERGY TECH CO LTD
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Problems solved by technology
However, this method requires a large increase in the number of coils, which will lead to a sharp increase in cost, and there will be blind spots due to the places that the coils do not cover. This method also has considerable limitations.
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[0030] In the following, the present invention will be specifically described through exemplary embodiments. It should be understood, however, that elements, structures and characteristics of one embodiment may be beneficially incorporated in other embodiments without further recitation.
[0031] Before describing the present invention, further combine figure 1 Explain the working principle of the present invention, figure 1 It shows that when the transmitting coil is aligned with the receiving coil, the voltage value received by the receiving coil is the largest, and when the distance is closer, the received voltage value is larger. specific, figure 1 It is a diagram of the relationship between the alignment distance of the wireless transmitter and the wireless receiver in a certain direction and the output voltage of the wireless charging system. When the wireless transmitting end of the wireless charging system is aligned with the wireless receiving end in the direction ...
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The invention puts forward a wireless charging system and a wireless charging method. The wireless charging system comprises a wireless transmitting unit and a wireless receiving unit which can realize power and communication signal transmission. The wireless transmitting unit can acquire relative position information between the wireless transmitting unit and the wireless receiving unit by detecting the output voltage gain of energy picked up in a magnetic field by the wireless receiving unit. A microcontroller in the wireless transmitting unit comprises a judgment module and a control module which provides a drive instruction for a mobile device. The judgment module is used for judging the size relation between a reference voltage value and a judged voltage value and forming a judgment signal which is sent to the control module, and the control module drives the mobile device to move according to the judgment signal. The wireless charging method is implemented using the wireless charging system. By controlling movement of the wireless transmitting unit, the wireless transmitting unit is aligned with the wireless receiving unit. According to the invention, automatic alignment of the wireless transmitting unit and the wireless receiving unit is realized, and the efficiency of wireless charging is maximized.
Description
technical field [0001] The invention belongs to the field of wireless charging, and in particular relates to a wireless charging system capable of realizing maximum charging efficiency. Background technique [0002] Taking electric vehicle charging as an example, the traditional wired charging method takes a long time to charge. Generally, slow charging takes 6-8 hours, and the driver needs to operate the charging process by himself. Due to the existence of high voltage and high current in the charging process of electric vehicles, there are potential dangers to personal safety itself. In outdoor charging on cloudy and rainy days, the possible safety problems caused by leakage are more prominent. In addition, due to the limited cruising range of electric vehicle batteries at present, the frequency of charging is relatively high, and the charging plug needs to be plugged and unplugged manually every time charging is started and completed, which will make users feel very incon...
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IPC IPC(8): H02J50/12H02J50/90H02J7/02
CPCH02J5/005H02J7/025
Inventor 李聃孙延鸽
Owner QINGDAO LU YU ENERGY TECH CO LTD