Expandable wireless charging pad with multi-load isolation characteristics

A technology with isolation characteristics and wireless charging, which is applied in the direction of current collectors, electric vehicles, electrical components, etc., can solve the problems of unexpandable charging platform, mutual interference of multiple receiving loads, etc., to improve the utilization rate of charging area, easy to implement, and increase the area The effect of utilization

Active Publication Date: 2016-09-21
NANCHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to propose a new type of charging platform with multi-load isolation characteristics to solve the problems in the prior art that the charging platform

Method used

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  • Expandable wireless charging pad with multi-load isolation characteristics
  • Expandable wireless charging pad with multi-load isolation characteristics
  • Expandable wireless charging pad with multi-load isolation characteristics

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Embodiment Construction

[0031] The present invention will be further described below with reference to the accompanying drawings and examples, but it is not intended to limit the scope and application of the present invention.

[0032] like figure 2 shown. The charging system is spliced ​​by 4 planar launch pads with planar launch coils of the same specification. Each planar launch coil is made of 10 turns of enamelled copper wire with a wire diameter of 1mm, and the side lengths of each turn are respectively 5.4cm, 12.9cm, 16.4cm, 18.9cm, 20.8cm, 22.3cm, 23.4cm, 24.2cm, 24.6cm, 24.9cm, planar launch coil inductance L TX Both are 119.2uH, the transmitting coil tuning capacitor C TX is 30.7nF, tune it at f 0 The operating frequency of the system is 83.35KHZ. The specifications of the receiving coil in the wireless energy receiver are the same, the diameter is 5cm, and it is formed by winding 40 turns of enamelled copper wire with a wire diameter of 1mm. L 55.2uH, receiving coil tuning capacit...

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Abstract

The invention relates to an expandable wireless charging pad with multi-load isolation characteristics. The expandable wireless charging pad with multi-load isolation characteristics includes an inversion AC power supply, K converters, planar emission pads and a wireless energy receiver, wherein each K converter is formed by a T type or Pi type LC circuit network; each planar emission pad is formed by serial connection of a planar emission coil and an emission coil tuning capacitor, and is adhered to and fixed on a soft pad made of insulating materials; the wireless energy receiver is formed by serial connection of receiver coils, receiver coil tuning capacitors and loads, and is arranged on the emission pad; the inversion AC power supply is connected with the planar emission pads through the K converters and wires; and the receiver coil and the receiver coil tuning capacitor are connected in series, and are connected with a load circuit through an output port. The expandable wireless charging pad with multi-load isolation characteristics is easy to carry out, and is significantly effective. The wireless energy receiver waiting for charging load can be arranged in the charging area at will and is not influenced by other charging loads. And at the same time, the utilization rate of the charging area is improved, and the load isolation effect is not influenced after expansion and splicing.

Description

technical field [0001] The invention belongs to the technical field of wireless energy transmission system design. Background technique [0002] With the increasing number of electronic products, there is an urgent need for a convenient home charging platform. As a new technology, wireless power transmission technology can well meet this demand. Among these wireless power transmission technologies, the magnetic resonance coupled wireless charging technology is widely favored due to its safety, medium-distance transmission and high efficiency. Therefore, using this technology can make a good home wireless charging system. [0003] Traditional multi-load wireless charging systems are constructed using one large transmitting coil and multiple small receiving coils. In this system, the receiving coil is very susceptible to interference from other receiving coils and cannot work stably. In the current existing research results, most of them use the method of connecting a matc...

Claims

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Application Information

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IPC IPC(8): H02J50/12H02J7/00
Inventor 罗斌周俊杰
Owner NANCHANG UNIV
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