Wireless charging device and charging method thereof
A wireless charging and wireless power technology, applied in circuit devices, battery circuit devices, current collectors, etc., can solve the problems of time-consuming waiting, inconvenience, and the electromagnetic field can no longer be sent to the outside, and achieve the effect of reducing the space
Active Publication Date: 2019-04-05
TDK TAIWAN
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Problems solved by technology
[0003] However, the known wireless charging devices all perform one-to-one charging. The devices at the power receiving end 20 will all lie flat on the charging platform of the power transmitting end 10 for wireless charging. If there are more than one power receiving end 20 devices When wireless charging is required, you can only wait for the original power receiving end 20 device to be fully charged, and then replace another power receiving end 20 device, which is quite inconvenient and takes a lot of waiting time
The reason is that it is known that the electromagnetic field of the charging platform of the power transmitting end 10 is sent upward (as shown by the arrow in the figure), while the iron core plate in the lying power receiving end 20 will absorb the electromagnetic field, so that the electromagnetic field can no longer be sent outward. Unless the charging platform of the power transmitting end 10 is very large, it can accommodate multiple flat power receiving end 20 devices, but it will occupy a large space, and the possibility of commercialization is not high
Method used
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Embodiment Construction
[0058] The wireless charging device 100 of the present invention is a wireless power receiving device 200 that can wirelessly charge multiple wireless power receiving devices at the same time. , Bluetooth headsets or imaging glasses and other wearable devices. The wireless power receiving devices 200 all include a receiving-end iron core plate 210 and a receiving-end coil 220 , and are roughly in the shape of a flat, thin rectangle. And as figure 2 As shown, it is a schematic diagram of a preferred embodiment of the wireless charging device 100 of the present invention, and as image 3 for figure 2 3D schematic diagram of . The wireless charging device 100 includes a transmission end iron core 110 and a transmission end coil 120, the transmission end iron core 110 has a bottom plate 111 connected to two vertical plates 112 to form a ラ shape, and a charging space is formed between the two vertical plates 112 113 , a plurality of wireless power receiving devices 200 can be...
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The invention discloses a wireless charging device and a charging method thereof. The wireless charging device comprises a transmission end iron core and a transmission end coil. The transmission end iron core is provided with a bottom plate and two vertical plates so as to form a U shape in which a charging space is formed and one or more than one wireless power receiving devices can be arranged. Each wireless power receiving device comprises a receiving end coil and a receiving end iron core plate. The receiving end iron core plate is perpendicular to the vertical plates of the transmission end iron core. When current flows through the transmission end coil, an electromagnetic field is generated in the charging space and penetrates through each receiving end iron core plate through the vertical plates of the transmission end iron core to form an electromagnetic field loop so that each receiving end coil is enabled to induce the electromagnetic field to generate charging power, and thus the objective that multiple power receiving end devices simultaneously perform wireless charging can be achieved.
Description
technical field [0001] The present invention relates to a wireless charging device and a charging method thereof, in particular to a device capable of wirelessly charging multiple power receiving terminals and a charging method thereof. Background technique [0002] A schematic diagram of a known wireless charging device such as figure 1 As shown, it includes a power transmitting end 10 and a power receiving end 20, the power transmitting end 10 has a transmitting end coil 11 and a transmitting end core plate 12, and the power receiving end 20 also has a receiving end coil 21 and a receiving end The iron core plate 22, the power transmitting end 10 and the power receiving end 20 will approach in parallel. When the transmitting end coil 11 is energized, an electromagnetic field will be generated and sent to the receiving end iron core plate 22 through the transmitting end core plate 12, and the electromagnetic field will pass through the receiving end coil. After 21 hours, i...
Claims
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IPC IPC(8): H02J7/00H02J50/10
Inventor 简凤龙陈茂军林建宏许胜泰赖妮妮徐湘惠
Owner TDK TAIWAN