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Multi-terminal distributed uniform equipower wireless power supply system

A wireless power supply, equal power technology, applied in circuit devices, electrical components, etc.

Pending Publication Date: 2021-07-06
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the traditional wireless charging system usually only corresponds to a single load, this will lead to an increase in the number of charging devices required when the charging load increases. There is no doubt that multi-load charging is a major problem that wireless power supply technology will inevitably face. , in order to fully apply wireless charging technology in daily life, it is necessary to consider the problem of multi-node load

Method used

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  • Multi-terminal distributed uniform equipower wireless power supply system
  • Multi-terminal distributed uniform equipower wireless power supply system
  • Multi-terminal distributed uniform equipower wireless power supply system

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Embodiment Construction

[0023] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0024] see figure 1 , the embodiment of the present invention proposes a multi-terminal distributed uniform equal power wireless charging system for multiple loads. The system device is preferably set to include 2 power transmitting units and 7 relay units ( figure 1 Only 2 relay units are omitted in the figure); in actual implementation, the number of relay units can be selected according to the specific efficiency and power requirements, and more than 2 relay units can be set according to the requirements of multiple loads, and 1 power transmitting unit can be set according to the performance requirements , 2 or more.

[0025] The structure of the two power transmission units is the same, respectively including a power module, a compensation circuit and a transmission coil connected in sequence. The power module is compose...

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Abstract

The invention provides a multi-terminal distributed uniform equipower wireless power supply system, which comprises more than one power transmitting unit and more than two relay units, a plurality of loads are respectively connected to each relay unit, and wireless power transmission is established between the power transmitting units and the relay units by adopting a magnetic coupling resonant power transmission mode. Each power transmitting unit comprises a power supply module, a compensating circuit and a transmitting coil which are connected in sequence; the power supply module is formed by connecting a direct-current power supply, a driving circuit and a high-frequency full-bridge inverter; each relay unit comprises a relay coil, a compensating circuit, a compensating coil, a rectifying and voltage stabilizing circuit and a load; and in each relay unit, a relay coil provides a receiving coil function of the unit, and a compensation coil provides a transmitting coil function of the unit. The method can be applied to long-distance and multi-load application, and it is ensured that each load in a distributed system can effectively receive enough power.

Description

technical field [0001] The invention relates to a magnetic coupling resonant wireless power transmission technology, including a multi-terminal distributed uniform equal power wireless power supply system. Background technique [0002] Wireless Power Transfer (WPT) technology is a new power supply technology based on the principle of near-field coupling, which uses a magnetic field instead of a traditional conductor to achieve power transmission in a non-contact manner. Due to the breakthrough of the traditional contact power supply's dependence on the transmission conductor, compared with the direct physical contact power supply methods such as catenary and third rail, it can realize complete electrical isolation between the power supply line and the load, avoiding mechanical sliding friction, moisture It has the incomparable advantages of traditional power transmission methods such as safety, reliability and flexibility. [0003] Wireless energy transmission technology do...

Claims

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Application Information

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IPC IPC(8): H02J50/12H02J50/40H02J50/50
CPCH02J50/12H02J50/40H02J50/50H02J50/502
Inventor 王军华蔡昌松王晨璐
Owner WUHAN UNIV
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