Flasher Fish Sonar Non-Contact Power Transmission
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Solution Overview
Problem
Prior flasher type fish sonar devices experience significant vibrations and noise due to the use of brushes and slip rings for power and signal transmission, leading to wear and reduced device lifespan.
Innovation Solution
The implementation of a signal transmitting element and a power receiving coil, along with a display light emitting diode, eliminates the need for brushes and slip rings by using a motor-driven rotary disk with a signal receiving element and a connecting base board to transmit signals and power without physical contact, thereby reducing vibrations and noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If brushes and slip rings are used to transmit power and display signals, then the device can operate, but large vibrations and noise are generated and brushes are worn
Solution Approach 1:
The patent replaces the mechanical contact system (brushes and slip rings) with a magnetic coupling system. The rotating disk carries a coil that generates a rotating magnetic field, which induces currents in a stationary coil, thereby transmitting power and signals without mechanical contact. This substitution eliminates vibrations and noise associated with brush-slip ring contact while maintaining device operation.
Solution Approach 2:
The patent introduces a magnetic field as an intermediary to transfer energy and signals between the rotating disk and the stationary circuit. The coil on the rotating disk generates a magnetic field that couples with the stationary coil, enabling non-contact transmission of power and display signals, thus avoiding the harmful vibrations and noise of direct mechanical contact.
2Reliability
If brushes and slip rings are used to transmit power and display signals, then the device can operate, but brushes are worn by wear
Solution Approach 1:
The patent eliminates the mechanical wear problem by replacing brushes and slip rings with a magnetic coupling system. The rotating disk's coil generates a magnetic field that induces currents in the stationary coil without physical contact, thereby preventing brush wear and extending device operation life.
Solution Approach 2:
The magnetic field serves as an intermediary that transfers power and signals without requiring physical contact between moving and stationary parts. This eliminates the wear mechanism that would otherwise degrade brush life and reduce device reliability over time.
3Power
If brushes and slip rings are used to transmit power and display signals, then power and signals can be transmitted, but vibrations and noises are generated
Solution Approach 1:
The patent replaces the mechanical power transmission system (brushes and slip rings) with a magnetic induction system. The coil on the rotating disk generates a rotating magnetic field that induces currents in the stationary coil, enabling power transmission without mechanical contact and thereby eliminating associated vibrations and noise.
Solution Approach 2:
The magnetic field acts as an intermediary for power transmission, coupling the rotating disk's coil with the stationary coil through electromagnetic induction. This non-contact transmission method eliminates the vibrations and noise generated by mechanical brush-slip ring contact while maintaining effective power delivery.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution effectively transmits display signals and power without generating vibrations or noise, extending the device's lifespan by eliminating wear and ensuring reliable operation.
Implementation Method 1
a power transmitting coil opposite to the power receiving coil
Implementation Method 2
a display light emitting diode attached to the position opposite to the display window of the front case
Implementation Method 3
an ultrasonic transducer... ultrasonic waves are emitted from the ultrasonic vibrator to the water
Implementation Method 4
Reflected ultrasonic waves from the water are received by the ultrasonic transducer
Data Source
AI summary
A flasher type fish sonar includes a front case with a transparent display window, a signal transmitting element at a center thereof, a connecting base board having a first timing detecting portion mounted thereto, a signal receiving element mounted opposite the signal transmitting element, a receiving coil mounted at a periphery of the signal receiving element, a display LED attached opposite the display window, a display rotary disc having a second timing detecting portion mounted opposite the first timing detecting portion and near the display LED, an electric power transmitting coil mounted to the connecting base board opposite the receiving coil, a main base board fixed to the connecting base board and a motor on the main base board for rotating the display rotary disc, such that a a water surface, reflected echos of fishes and a water bottom of the sea are displayed in the display window.