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A magnetic coupling resonant wireless power transmission device suitable for multi-load transmission

A resonant radio and transmission device technology, applied in circuit devices, electrical components, electromagnetic wave systems, etc., can solve the problems of complex structure and bulky volume, and achieve the effect of simple structure

Inactive Publication Date: 2015-10-21
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing magnetically coupled resonant wireless power transmission devices usually use multiple receiving coils to supply power to multiple loads, resulting in complex structures and bulky volumes

Method used

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  • A magnetic coupling resonant wireless power transmission device suitable for multi-load transmission
  • A magnetic coupling resonant wireless power transmission device suitable for multi-load transmission
  • A magnetic coupling resonant wireless power transmission device suitable for multi-load transmission

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Embodiment Construction

[0017] The magnetic coupling resonant wireless power transmission device provided by the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0018] see figure 1 , the first embodiment of the present invention provides a magnetic coupling resonant wireless power transmission device 10 . The magnetically coupled resonant wireless power transmission device 10 includes a transmitting coil 120 , a receiving coil 130 and a plurality of load coils 140 .

[0019] The transmitting coil 120 is spaced apart from the receiving coil 130 . The transmitting coil 120 and the receiving coil 130 are used for magnetically coupled resonant wireless power transmission. The transmitting coil 120 is used to transmit electric energy, and the receiving coil 130 is used to receive electric energy and transfer the electric energy to the load coil 140 through electromagnetic induction. Furthermore, one receiving coil 130 can simultaneou...

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Abstract

The invention relates to a magnetic coupling resonance wireless power transmission device, comprising an emission coil, a receiving coil and multiple load coils; the two ends of the emission coil are respectively connected with a first capacitor to form a closed loop, and the emission coil is resonated by the first capacitor and is used for emitting electric energy; the receiving coil and the emission coil are arranged at intervals, two ends of the receiving coil are respectively connected with a second capacitor to form a closed loop, and the receiving coil is resonated by the second capacitor and is used for receiving the electric energy; the magnetic coupling resonance wireless power transmission device is characterized in that the multiple load coils are arranged by corresponding to the same receiving coil, and the receiving coil transmits the received electric energy to the multiple load coils at the same time by electromagnetic induction. The magnetic coupling resonance wireless power transmission device transmits power to the multiple load coils at the same time by one single receiving coil, and is simple in structure.

Description

technical field [0001] The present invention relates to a wireless power transmission device, in particular to a magnetic coupling resonance type wireless power transmission device. Background technique [0002] Since human society entered the era of electrification, the transmission of electric energy is mainly through point-to-point direct contact transmission of metal wires. However, due to problems such as friction and aging of the wires, sparks are easily generated during power transmission, which in turn affects the life of electrical equipment and the safety of electricity usage. At the same time, in some special applications, such as mines and water, direct contact transmission of wires is prone to danger. In addition, the long-term power supply of medical equipment implanted in the body is also inconvenient. Wireless power transfer (WPT) can solve the above problems. [0003] Wireless power transmission can be achieved by using electromagnetic fields as the trans...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J17/00H02J50/12
Inventor 张艺明赵争鸣孙晓瑛袁立强
Owner TSINGHUA UNIV
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