Multi-Axis Screen Rotation Mechanism for Compact Vehicle Displays
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Solution Overview
Problem
Existing display screens in vehicles lack the ability to rotate in multiple directions, making it difficult for users to adjust the tilt angle for optimal viewing.
Innovation Solution
A screen rotation device with a rotating mechanism, transmission mechanism, and connecting portion, allowing the screen to rotate in three perpendicular directions through a combination of linear movement of push rods and a universal joint mechanism, facilitated by actuators.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a screen is equipped with multi-directional rotation capability, then the adaptability and ease of operation are improved, but the device complexity increases
Solution Approach 1:
The rotation mechanism is divided into three independent rotation units, each responsible for one degree of freedom. Each unit contains a rotating member, a push rod, and a motor, allowing the screen to rotate along three perpendicular directions independently. This segmentation enables multi-directional adjustment while keeping each individual rotation unit relatively simple and manageable.
2Ease of operation
If three actuators are used to drive multi-directional rotation, then the ease of operation and adaptability are improved, but the weight and device complexity increase
Solution Approach 1:
The patent replaces complex multi-axis mechanical transmission mechanisms with three independent linear actuators (push rods). Each actuator directly drives one rotation unit along a perpendicular direction, eliminating the need for complex gear trains, linkages, or universal joints that would increase weight and mechanical complexity. The direct linear-to-rotational conversion simplifies the overall system.
3Productivity
If a compact rotation mechanism is designed, then the productivity of installation is improved, but the device complexity may increase
Solution Approach 1:
The three rotation units are arranged in a nested or compact configuration where each rotation unit can be positioned within or adjacent to the others. The rotating members are connected in sequence, with each subsequent rotation unit building upon the previous one, creating a space-efficient assembly that minimizes the overall footprint while maintaining full three-degree-of-freedom rotation capability.
Data Source
AI summary
This disclosure describes a screen rotation device that includes a rotating mechanism, a transmission mechanism, and a connecting part. The rotating mechanism has a base and a bracket. The base is attached to the screen, and the bracket is connected to the base in a way that allows it to rotate in multiple directions. The transmission mechanism is linked to the bracket and can move in a straight line to make the bracket rotate. The connecting part is also attached to the base and connected to the transmission mechanism. The screen rotation device in the present disclosure is capable of rotating multi-directionally.