Swing Door Drive Speed Control for Kinetic Energy Safety
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Solution Overview
Problem
Existing swing door drives lack effective safety measures to control the speed and energy of the door leaf during operation, leading to potential hazards due to varying kinematic conditions and energy requirements not being consistently met, especially during fast travel and obstacle encounters.
Innovation Solution
A swing door drive system that includes a mounting type input device to detect the assembly type, a closing edge movement detection device to determine instantaneous speed and acceleration, and a control device to regulate the door drive based on these parameters, ensuring compliance with low-energy operation standards by programming different assembly types and adjusting the door's kinematics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the door leaf speed increases sharply towards the end of opening movement to improve operation speed, then productivity is improved, but the kinetic energy exceeds the safety limit of 1.69 J creating harmful effects
Solution Approach 1:
The patent applies dynamics by making the drive system adjustable and adaptable to different installation configurations. The control device dynamically adjusts the drive parameters based on the detected rod gear type (scissor linkage or sliding linkage) and installation position, enabling the system to optimize speed profiles while maintaining energy limits across varying operational conditions
Solution Approach 2:
The patent changes operational parameters by detecting the specific installation type and rod gear configuration, then adjusting drive characteristics accordingly. The control device modifies speed, acceleration, and force parameters to ensure that despite different mechanical configurations, the kinetic energy at the closing edge remains below 1.69 J while maintaining efficient operation
2Device complexity
If standard linkage types are used with fixed kinematic conditions, then device complexity is reduced, but adaptability to different installation variants is limited
Solution Approach 1:
The patent achieves universality by creating a control device that can handle multiple rod gear types (scissor linkage, sliding linkage) and various installation positions (hinge side, opposite hinge side, different reveal depths). The system automatically detects the configuration and adjusts parameters accordingly, making a single drive system adaptable to diverse installation scenarios without requiring complex mechanical modifications
Solution Approach 2:
The patent implements feedback through the mounting type input device that detects the rod gear type and installation configuration. This detected information feeds back to the control device, which then adjusts the drive parameters appropriately. The feedback mechanism enables the system to adapt to different installation variants while maintaining simple standardized hardware design
3Reliability
If energy consumption is monitored to detect obstacles, then safety is improved, but the measurement precision of obstacle detection is insufficient due to varying kinematic conditions
Solution Approach 1:
The patent improves measurement precision by adjusting the reference parameters for energy monitoring based on the detected installation type and rod gear configuration. Since different configurations produce different kinetic energy profiles during normal operation, the control device establishes configuration-specific baseline values, enabling more accurate obstacle detection by comparing actual energy consumption against the appropriate reference profile
Data Source
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AI summary
The invention relates to a swing door drive (116) for driving a wing (106), which is rotatable about a vertical axis (110), of a swing door (100), said swing door drive comprising an installation mode input device (138) which is designed for inputting or detecting a swing door drive mounting type (DMA) of the swing door drive (116).