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Wireless charging coupling mechanism, wireless electric energy transmission system and method

A technology of wireless power transmission and coupling mechanism, which is applied to battery circuit devices, current collectors, electric vehicles, etc., and can solve the problems of low degree of freedom in wireless charging and high docking accuracy requirements at the receiving end

Active Publication Date: 2021-11-09
ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a single double D-type transmitting coil only generates a horizontal magnetic field, and the solenoid-type receiving coil needs to be parallel to the transmitting magnetic field to couple the magnetic field well to receive energy, which requires high docking accuracy at the receiving end. Wireless charging low degree of freedom

Method used

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  • Wireless charging coupling mechanism, wireless electric energy transmission system and method
  • Wireless charging coupling mechanism, wireless electric energy transmission system and method
  • Wireless charging coupling mechanism, wireless electric energy transmission system and method

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Embodiment 1

[0045] In order to solve the problems in the prior art that a single double D-type transmitting coil only generates a magnetic field in a horizontal direction, which requires high docking accuracy at the receiving end and low degree of freedom in wireless charging, this embodiment proposes a wireless charging coupling mechanism that can be applied Wireless charging scenarios for robots, cars, drones, etc., see Figure 2 to Figure 4 , a wireless charging coupling mechanism, comprising an energy transmitting device and an energy receiving device;

[0046] The energy transmitting device includes an energy transmitting coil; the energy receiving device includes an energy receiving coil;

[0047] The energy transmitting coil comprises a first coil group 12 and a second coil group 13; the first coil group 12 and the second coil group 13 respectively comprise two mutually axisymmetric coils; the symmetry axis of the first coil group 12 is the Y axis , the axis of symmetry of the sec...

Embodiment 2

[0057] In order to solve the problem in the prior art that a single double D-type transmitting coil only generates a magnetic field in a horizontal direction, which requires high docking precision at the receiving end and low degree of freedom in wireless charging, this embodiment proposes a wireless power transmission system, including the original Side power transmitting circuit, secondary side power receiving circuit;

[0058] The primary power transmission circuit includes sequentially connected DC power sources ( Figure 5 E in), full bridge inverter circuit ( Figure 5 The switching tube Q in 1 , Q 2 , Q 3 , Q 4 ), the primary side resonant compensation network ( Figure 5 The transmitter compensation coil L in t , the first compensation capacitor C t , the second compensation capacitor C p ), and the energy transmitting coil of the wireless charging coupling mechanism according to any one of the embodiments ( Figure 5 L in p1 and L p2 ); Figure 5 , also in...

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Abstract

The invention belongs to the technical field of wireless electric energy transmission, and particularly relates to a wireless charging coupling mechanism and a wireless electric energy transmission system and method. The wireless charging coupling mechanism comprises an energy transmitting device and an energy receiving device, wherein the energy transmitting device comprises an energy transmitting coil; the energy receiving device comprises an energy receiving coil; the energy transmitting coil comprises a first coil group and a second coil group; the first coil group and the second coil group are the same in shape; and the first coil group generates a magnetic field in the X-axis direction, and the second coil group generates a magnetic field in the Y-axis direction. Two-dimensional horizontal magnetic fields in the X-axis direction and the Y-axis direction are generated through the two groups of coils, no matter whether the energy receiving coil is placed in the X-axis direction or the Y-axis direction, the energy transmitting coil can achieve wireless electric energy transmission, one degree of freedom is expanded compared with a traditional single double-D-type coil, and multi-degree-of-freedom wireless charging for the energy receiving end is realized.

Description

technical field [0001] The invention belongs to the technical field of wireless power transmission, and in particular relates to a wireless charging coupling mechanism, a wireless power transmission system and a method. Background technique [0002] Robot intelligent inspection has the advantages of good autonomy and high inspection quality, which greatly improves the intelligence level of inspection. It has become a development trend that the robot inspection method replaces the traditional manual inspection method. At present, most of the power supply methods of inspection robots are based on wired charging or manual battery replacement, which have problems such as poor flexibility, low reliability, and low level of intelligence. Wireless charging technology provides an idea to solve the problems existing in the above-mentioned contact power supply or manual battery replacement method. Because it gets rid of the shackles of physical media, it has the advantages of flexibil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J50/12H02J50/40H02J50/00H02J7/00
CPCH02J50/12H02J50/402H02J50/005H02J7/00Y02T10/70Y02T10/7072
Inventor 吴晓锐肖静韩帅尹立群龚文兰吴宁陈绍南陈卫东卢健斌阮诗雅郭敏郭小璇孙乐平赵立夏
Owner ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD
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