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Bowl-shaped wireless charging device with high charging efficiency

A wireless charging and charging efficiency technology, applied in the field of wireless transmission, can solve the problems of heat dissipation and performance impact of the device, increase the size and cost of the device, and achieve the effects of maximizing transmission efficiency, reducing transmission distance, and maximizing transmission power

Active Publication Date: 2022-01-04
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the coil structure contains a large number of coils, and the position of the coils is relatively special, which needs to be fixed by external components, and there is a large area of ​​superposition between the coils
These shortcomings will increase the size and cost of the device on the one hand, and on the other hand will have a certain impact on the heat dissipation and performance of the device

Method used

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  • Bowl-shaped wireless charging device with high charging efficiency
  • Bowl-shaped wireless charging device with high charging efficiency
  • Bowl-shaped wireless charging device with high charging efficiency

Examples

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Embodiment Construction

[0028] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0029] This application discloses a bowl-shaped wireless charging device with high charging efficiency. The bowl-shaped wireless charging device includes a bowl-shaped container body, a transmitting coil set and a charging control circuit. Please refer to figure 1 , the bowl-shaped container body includes a regular N-sided bottom surface 1 and N side surfaces 2 each in an isosceles trapezoidal structure, N≥4, figure 1 Taking the case of N=4 as an example, the upper side of each side 2 is connected to one side of the bottom 1 so that a predetermined angle is formed between the side 2 and the bottom 1, and the waists of two adjacent sides 2 are connected to form a vessel edge. Furthermore, in this application, rounded corners are used to connect two adjacent sides to form the edge of the container, so that the device to be charged is not easy ...

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Abstract

The invention discloses a bowl-shaped wireless charging device with high charging efficiency, and relates to the technical field of wireless transmission. The device comprises a bowl-shaped vessel body, a transmitting coil group and a charging control circuit, the charging control circuit is connected with the transmitting coil group, the bowl-shaped vessel body comprises a bottom surface in the shape of a regular N polygon and N side surfaces in the shape of an isosceles trapezoid, the bottom transmitting coil is of a regular N polygon and is arranged in the bottom surface of the bowl-shaped vessel body, the N side transmitting coils are of isosceles trapezoid structures and are arranged in the side surfaces of the bowl-shaped vessel body respectively, the bottom transmitting coil is connected with one of the side transmitting coils in series, and every two adjacent side transmitting coils are connected in series reversely. According to the connection method, the self-inductance of the transmitting coil and the mutual inductance between the receiving device and the transmitting device are increased, so that the transmission power and the transmission efficiency of the system can be maximized under the condition of the same input voltage of the device.

Description

technical field [0001] The invention relates to the technical field of wireless transmission, in particular to a bowl-shaped wireless charging device with high charging efficiency. Background technique [0002] In recent years, wireless charging technology has gradually entered people's daily life, and there are more and more devices with wireless charging function, among which mobile phones, earphones, watches, etc. are the most prominent. But these devices need a matching wireless charger to perform wireless charging, and most wireless chargers can only wirelessly charge one device at a time. In addition, most of the wireless chargers currently on the market are unable to realize "charge at any time", requiring the user to place the device to be charged directly above the wireless charger, which reduces the user experience. [0003] The Chinese patent with the publication number CN110649717A discloses a three-dimensional omnidirectional wireless power transmission transmi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J50/00H02J50/12H02J50/40H02J7/00
CPCH02J50/005H02J50/12H02J50/402H02J7/00
Inventor 卢闻州赵健陈海英樊启高朱一昕毕恺韬
Owner JIANGNAN UNIV
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