Amphibious key based on electromagnetic induction principle

Abstract

The invention provides an amphibious key based on an electromagnetic induction principle. The amphibious key comprises a permanent magnet sheet stress column, a permanent magnet sheet, a permanent magnet sheet cover plate, an arc-shaped sliding groove, an upper nut, an upper gasket, a winding magnetic core column, a cylindrical permanent magnet, an induction coil, a permanent magnet coil bin and asignal contact point. The opposite surfaces of the permanent magnet sheet and the cylindrical permanent magnet are the same in magnetic polarity, the permanent magnet sheet and the permanent magnet sheet are in a suspension state due to the repulsion effect between the cylindrical permanent magnet and the permanent magnet sheet, and the repulsion effect between the same poles is restored to the original state after the key is pressed down; four operations of pressing, bouncing, long pressing and short pressing of the key can be judged by utilizing the positive and negative polarities of the key output signal and the conversion time interval between the positive and negative polarities; certain gaps are reserved among the three groove-shaped connecting pieces, when the key is pressed down,water in the arc-shaped sliding grooves is discharged from the gaps, and it is guaranteed that the inner water pressure and the outer water pressure are consistent. Therefore, the sensitivity of thedevice is irrelevant to the underwater depth of the key, and the device can adapt to a deep water environment.

Description

technical field [0001] The invention relates to the technical field of underwater keys, in particular to an amphibious key based on the principle of electromagnetic induction. Background technique [0002] With the continuous introduction of underwater equipment such as underwater vehicles, underwater entertainment, and seabed exploration, it is required to set the equipment underwater to meet the needs of users. Therefore, there is an urgent need for a general-purpose amphibious button. [0003] The buttons used in the air in the prior art are not waterproofed and cannot be applied underwater; while the underwater buttons of the prior art are generally only applicable to a water depth of 0 to 10 meters underwater, and the sensitivity of the buttons will increase sharply as the water depth deepens. There is a risk of false triggering, and the reliability is low. Compared with the button in the air, the design process is complicated and the price is expensive. [0004] The r...

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Problems solved by technology

[0007] The embodiment of the present invention provides an amphibious button based on the principle of electromagnetic induction. In order to solve the problem that the land-use button in the prior art cannot be applied underwater, the sensitivity of the underwater button is greatly affected by the water depth, and the design process is complicated. , expensive problem

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