A wireless power transfer system with redundant receiving coils

A technology for receiving coils and wireless energy, applied in circuit devices, electrical components, etc., can solve the problems that affect the normal work and life of users, affect the economic benefits, time costs and energy consumption of users, reduce electromagnetic radiation, and increase charging. Efficiency, the effect of reducing the magnetic flux leakage of the system

Active Publication Date: 2022-03-01
XI AN JIAOTONG UNIV +5
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the wireless power transmission system, considering that the load coil and the rectifier unit may fail, this will affect the normal power supply of the equipment at the receiving end
When the normal power supply cannot be guaranteed, firstly, the equipment will not work normally and affect the economic benefits of the users; Bring additional time cost and energy consumption

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A wireless power transfer system with redundant receiving coils
  • A wireless power transfer system with redundant receiving coils
  • A wireless power transfer system with redundant receiving coils

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, which are explanations rather than limitations of the present invention.

[0028] 1) Design the coupling mechanism of the wireless power transfer system with redundant receiving coils, such as figure 1 Shown are the three coils of the WPT system coupling mechanism with redundant receiving coils, from top to bottom, 101 is the transmitting coil, 102 is the first receiving coil and 103 is the second receiving coil. The distance between the first receiving coil and the second receiving coil is 0.5 mm, and the first receiving coil, which is closer to the transmitting coil, is 10 mm. The specific parameters of the transmitting coil and the first receiving coil are shown in Table 1, and the specific parameters of the second receiving coil are shown in Table 2.

[0029] Table 1: Wireless power transfer system transmit coil and first receive c...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a wireless power transmission system with redundant receiving coils, which includes a DC input module, a high-frequency inverter circuit, and a primary side resonant circuit connected in sequence, and two receiving coils are connected in series with their respective compensation capacitors to form two secondary The side resonant circuit, the two resonant circuits are connected to the rectifier circuit and then connected in parallel to the filter capacitor, which is then connected to the load. When the present invention is working normally, both receiving coils can capture the alternating magnetic field to generate alternating voltage, and supply power to the load at the same time after rectification, which increases the load current and thus increases the charging efficiency; compared with the wireless power transmission of the traditional single receiving coil System, the design of redundant receiving coils can also reduce the magnetic flux leakage of the system and reduce the electromagnetic radiation to the environment; when any receiving coil on the secondary side fails, the wireless power transmission system can still ensure the normal operation of the receiving end equipment, and the two receiving coils The design guarantees the safety and reliability of the system.

Description

technical field [0001] The invention belongs to the technical field of wireless power transmission, and in particular relates to a wireless power transmission system with redundant receiving coils. Background technique [0002] Wireless power transmission is a safe and convenient power transmission method, which has the advantages of flexible and convenient use, less maintenance, strong environmental adaptability, and easy implementation. Magnetically coupled resonant wireless power transmission technology satisfies the requirements of distance, efficiency, power and safety, and has broad application prospects in the fields of electric vehicles, consumer electronics, underwater equipment, sensors and implanted medical equipment. [0003] In some applications, such as the receiving end of electric vehicles, underwater equipment, implanted medical equipment, and when the power receiving end of the wireless power transmission system fails, it is extremely inconvenient to replac...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): H02J50/12H02J50/40H02J50/70
CPCH02J50/12H02J50/40H02J50/70
Inventor 伍敏董晓帅王林陈枫陈文洁
Owner XI AN JIAOTONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap