Underwater magnetic coupling resonance type wireless charging and communication cable joint

Abstract

The invention relates to a cable joint, and particularly relates to a cable joint of underwater wireless charging and wireless communication. An underwater magnetic coupling resonance type wireless charging and communication cable joint comprises a transmitting end and a receiving end, the transmitting end is composed of a transmitting end controller and a transmitting end coil, and the receivingend is composed of a receiving end controller and a receiving end coil. One end of the transmitting end controller is hermetically connected with a four-core cable, and the other end of the transmitting end controller is connected with the transmitting end coil; one end of the receiving end controller is hermetically connected with the four-core cable, and the other end of the receiving end controller is connected with the receiving end coil; and the transmitting end coil and the receiving end coil carry out power transmission in an electromagnetic mutual inductance mode. According to the cable joint, wireless data transmission between the transmitting end and the receiving end is achieved by designing a wireless communication module and a MCU micro-control unit, wired communication can bereplaced with wireless communication, closed-loop control is formed between the transmitting end and the receiving end, and power supply transmission can be controlled more conveniently.

Description

technical field [0001] The invention relates to a cable joint, especially a cable joint for underwater wireless charging and wireless communication. Background technique [0002] Marine ecological environment monitoring mainly relies on various underwater sensors, underwater and surface buoys, and shore-based platforms. The sea surface buoy and the shore base station are connected to the underwater sensor through 4-core cables, including 2 power lines and 2 signal lines. At present, cables are mainly connected by plug-in watertight joints. This connection method has several disadvantages: first, the cable joints cannot be plugged and unplugged underwater; It is easy to enter the water and be scrapped; thirdly, the sea environment is complex, and external forces such as underwater currents and waves can easily cause short circuits in the watertight joints. The existence of these problems brings great inconvenience to equipment maintenance personnel, and a little carelessnes...

AI Technical Summary

Problems solved by technology

At present, cables are mainly connected by plug-in watertight joints. This connection method has several disadvantages: first, the cable joints cannot be plugged and unplugged underwater; It is easy to enter the water and be scrapped; thirdly, the sea conditions are complex, and external forces such as underwater currents and waves can easily cause short circuits in the watertight joints

[0004] Although the above-mentioned patent solves the problem of underwater charging, it still has the following disadvantages: 1. The built-in winding at the input end generally has a long-term current passing state. This design scheme will waste a lot of energy and cause electromagnetic field pollution in a certain range and frequency , and will reduce the service life of the insulating layer due to the long-term heating of the conductor, resulting in new leakage hazards

2. The conductor winding in the output end (plug) is generally designed as a closed circuit. Before the plug is fully inserted into the designed working position, the lead wire at the rear end of the plug will generally have a voltage output. On the one hand, this design structure has potential safety hazards. On the one hand, the fluctuating output voltage may also cause damage to the back-end electrical appliances

[0007] 1. The winding coil at the input end turns on the switch through the socket and plug to prevent the input end from being in a conductive state for a long time, but the repeated pressing and deformation of the switch will cause fatigue damage to the insulation layer and the risk of water leakage, and the underwater pressure may affect the switch. the status of

[0008] 2. The change of magnetic flux during the insertion and extraction of the input and output coils will cause voltage and current fluctuations in the circuit, thereby causing damage to the back-end electronic components

[0009] 3. The input end generates a magnetic field change through an alternating current, the frequency of the magnetic field change is not easy to control, and it is difficult to achieve high-frequency magnetic flux change

[0010] 4. Only the power supply method has been improved, which cannot meet the needs of wireless communication

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