Acoustic wave based wireless energy and information transfer apparatus

Abstract

The invention relates to an acoustic wave based wireless energy and information transfer apparatus. The acoustic wave based wireless energy and information transfer apparatus comprises a transmitting end and a receiving end, wherein the transmitting end and the receiving end are provided with energy converters separately; the energy converters are arranged in respective half-empty cavities; when the wireless energy and information transfer apparatus is in use, the two half-empty cavities are butted to form a sealed cavity; electric energy and electric signals are converted into acoustic wave through the transmitting end; the acoustic wave is directly propagated to the energy converter at the receiving end, or the acoustic wave is reflected for one or more times in the cavity and then is propagated to the energy converter at the receiving end; the energy converter at the receiving end converts the received acoustic wave into electric energy and electric signals; and during the process, the energy and signals are transferred from the transmitting end to the receiving end through an acoustic wave transfer mode. According to the acoustic wave based wireless energy and information transfer apparatus, an acoustic aggregation effect is realized through the cavity formed by butting the transmitting end and the receiving end; and the acoustic wave strength received by the energy converter at the receiving end can be improved, so that the transfer efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of wireless energy and information transmission, and relates to a wireless energy and information transmission device based on sound waves. Background technique [0002] Most of the working equipment needs energy supply. The traditional energy transmission method mostly transmits energy to the end product through the contact plug-in interface. This transmission method will bring friction and easily generate problems such as electric sparks, which will affect the electrical equipment. The safety and reliability of the equipment, the traditional wired power transmission method cannot meet the needs of some special applications, such as mines and underwater. [0003] In the underwater environment, power and signal transmission interface devices are often needed. Now the commonly used interface device is the underwater wet plug interface. The wet plug interface technology is relatively mature, but there are in...

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Problems solved by technology

[0002] Most of the working equipment needs energy supply. The traditional energy transmission method mostly transmits energy to the end product through the contact plug-in interface. This transmission method will bring friction and easily generate problems such as electric sparks, which will affect the electrical equipment. The safety and reliability of the equipment, the traditional wired power transmission method cannot meet the needs of some special applications, such as mines and underwater

[0003] In the underwater environment, power and signal transmission interface devices are often needed. Now the commonly used interface device is the underwater wet plug interface. The wet plug interface technology is relatively mature, but there are inherent shortcomings: the water around the working environment is conductive, Any very small amount of water leakage may cause a short circuit or even cause an accident; wet plug connectors must pass tens of kilograms of plugging force to achieve normal plugging and unplugging operations, which is a big challenge for automatic working electromechanical equipment; The wet-plug interface requires frequent extrusion and plug-in operations, and the wear caused by the huge plug-in force seriously reduces the service life, and frequent maintenance is required to ensure safety; wet-plug interfaces are generally expensive, and for some simple devices, The cost of wet plugging interface even exceeds the cost of the device itself

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