One-Way Angle Control Mechanism for Stable Motorized Positioning
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Solution Overview
Problem
Existing angle controlling systems for electronic devices, such as projectors, require continuous power consumption to maintain adjusted angles and are prone to external force-induced angle changes, leading to reduced service life and increased power usage.
Innovation Solution
The implementation of a one-way transmission member system that allows for initial angle adjustment by motors and then locks the position without external power consumption, using worms and worm wheels to transmit power for tilting and panning while preventing external forces from affecting the motors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If motors continuously power the angle adjustment mechanism to maintain position, then the angle stability is improved, but the power consumption increases and motor service life decreases
Solution Approach 1:
A one-way transmission member (ratchet mechanism) is introduced as an intermediary between the motor and the bracket. This intermediary allows the motor to drive the bracket for angle adjustment while preventing reverse transmission of external forces to the motor, enabling the motor to stop powering once adjustment is complete while maintaining position stability.
Solution Approach 2:
The one-way transmission member enables the system to maintain its adjusted angle position automatically without requiring continuous motor power. The mechanism self-locks the position through its ratchet design, allowing the motor to enter standby mode and significantly reducing power consumption while maintaining angle stability.
2Stability of the object's composition
If motors continuously power the angle adjustment mechanism to maintain position, then the angle stability is improved, but the motor service life decreases
Solution Approach 1:
The one-way transmission member acts as a protective intermediary that isolates the motor from external forces. By preventing reverse force transmission, it eliminates the need for continuous motor operation, thereby reducing wear and extending motor service life while maintaining angle stability through passive mechanical locking.
Solution Approach 2:
The system uses the one-way transmission member to automatically maintain the adjusted angle position without requiring continuous motor operation. This self-sustaining mechanism reduces motor running time and wear, extending service life while preserving angle stability.
3Measurement precision
If the transmission mechanism allows bidirectional force transmission, then the control precision is improved, but the resistance to external forces decreases
Solution Approach 1:
The one-way transmission member serves as a selective intermediary that permits force transmission in the driving direction (maintaining control precision) while blocking reverse force transmission (resisting external forces). This directional selectivity resolves the contradiction between control precision and external force resistance.
Solution Approach 2:
Instead of using a bidirectional transmission mechanism with active control to resist external forces, the patent inverts the approach by using a unidirectional transmission member that passively blocks external forces while maintaining sufficient control precision for angle adjustment.
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 enables the electronic device to maintain adjusted angles without continuous power consumption, reducing wear and tear on the motors and extending their service life while minimizing power usage.
Implementation Method 1
The first one-way transmission member may include: a first worm coupled to the rotation shaft of the first motor; and a first worm wheel engaged with the first worm.
Implementation Method 2
a first one-way transmission member connecting the bracket and the first motor, the first one-way transmission member being configured to: transmit the power for rotating the bracket in the vertical direction from the first motor to the bracket, and in a state in which a first force is acting on the bracket, prevent the first force from being transmitted to the first motor
Data Source
AI summary
An angle controlling apparatus includes: an electronic device; a housing including upper housing and lower housings; a bracket inside the housing; a first motor inside the housing and configured to generate power for rotating the bracket; a first one-way transmission member connecting the bracket and the first motor to transmit the power generated by the first motor to the bracket, and prevent a force acting on the bracket from being transmitted to the first motor; a second motor inside the housing and configured to generate power for rotating the lower housing in left and right directions; and a second one-way transmission member connecting the lower housing and the second motor to transmit the power generated by the second motor to the lower housing to allow the lower housing to rotate, and prevent a force acting on the lower housing from being transmitted to the second motor.