Movable Battery Center-of-Gravity Mechanism for Underwater Diving Control
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Solution Overview
Problem
Conventional bionic fish designs face complexity in mechanical control systems, increased friction, reduced reliability, and high costs due to the use of waterproof motors, which complicate smooth operation and increase maintenance needs.
Innovation Solution
An underwater device with a center of gravity mechanism using a first driving motor, guiding rods, and linear bearings to shift the center of gravity for control, combined with multiple sealing rings for waterproofing, and infrared sensors for obstacle detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional counterweight mechanism is used to control floating and diving, then the center of gravity control function is achieved, but the mechanical design becomes complex and friction increases
Solution Approach 1:
The patent extracts the counterweight mechanism from the traditional complex mechanical system and replaces it with a movable battery module design. The battery module can be positioned at different locations within the device body to adjust the center of gravity, eliminating the need for complex counterweight mechanisms while maintaining the floating and diving control function.
Solution Approach 2:
The patent replaces the traditional mechanical counterweight system with an electrical control system. The battery module is moved to different positions using motor-driven mechanisms rather than complex mechanical linkages, reducing friction and improving reliability while achieving the same center of gravity adjustment effect.
2Ease of operation
If a complex mechanical mechanism is used for center of gravity control, then floating and diving control is achieved, but friction increases and the life of driving mechanism reduces
Solution Approach 1:
The patent removes the complex mechanical linkage system and replaces it with a simplified design where the battery module itself serves as the movable mass. This is driven by motor mechanisms that directly move the battery module along guided rails, eliminating intermediate mechanical components that generate friction and wear.
Solution Approach 2:
The patent implements a dynamic system where the battery module can be repositioned in real-time to adjust the center of gravity. The motor-driven mechanism with linear guides provides smooth motion with minimal friction, allowing the system to adapt to different operational requirements while extending the life of the driving mechanism through reduced mechanical stress.
3Reliability
If a waterproof motor is used to meet waterproof requirements, then the device can operate underwater, but the cost increases significantly
Solution Approach 1:
The patent divides the device into separate waterproof and non-waterproof sections. The motor is placed in a non-waterproof compartment, while the battery module and other critical components are in waterproof sections. This segmentation allows the use of standard, lower-cost motors while maintaining overall device waterproof integrity through separate sealing compartments.
Solution Approach 2:
The patent introduces a waterproof compartment or sealed chamber as an intermediary between the motor and the underwater environment. This intermediary structure allows the motor to remain outside the waterproof zone while still enabling the device to function underwater, avoiding the need for expensive waterproof motors while maintaining waterproof performance.
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
The device achieves stable and efficient control of floating and diving with reduced motor failure rates and lower costs by using a simplified mechanical design and effective waterproofing, allowing smooth operation and reliable obstacle detection.
Implementation Method 1
The first driving motor drives the battery module to move along the two guiding rods through the transmission assembly to shift a center of gravity of the underwater device
Implementation Method 2
The two linear bearings are disposed on the two guiding rods
Implementation Method 3
the first sealing ring is sandwiched between the first casing and the second casing, the second sealing ring is sandwiched between the second casing and the third casing
Data Source
AI summary
An underwater device includes a main body and a center of gravity mechanism. The center of gravity mechanism is disposed in the main body. The center of gravity mechanism includes a fixing plate, a bracket, a first driving motor, two guiding rods, two linear bearings, a battery module and a transmission assembly. The bracket is fixed to the fixing plate. The first driving motor is disposed on the bracket. The two guiding rods are fixed at two sides of the fixing plate. The two linear bearings are disposed on the two guiding rods. The battery module is connected to the two linear bearings. The transmission assembly is connected to the first driving motor and the battery module. The first driving motor drives the battery module to move along the two guiding rods through the transmission assembly to shift a center of gravity of the underwater device.