Electric Door Hinge Torque Volume Contradiction
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Solution Overview
Problem
Existing electric hinge systems for doors require high-powered power members to achieve sufficient torque, leading to increased volume and space requirements, making them inconvenient for installation and use.
Innovation Solution
A hinge system comprising a control module, an intelligent automatic recognition system, and a hinge assembly with a reduction gearbox and motor assembly, which includes a planetary gear assembly to provide high torque while minimizing volume, along with a sensing module and recognition device for user identification and automated door control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a high-powered power member is used to increase the torque of the hinge, then the torque is improved, but the volume of the electric hinge increases
Solution Approach 1:
The power member is segmented into a motor assembly and a reduction gearbox, where the motor assembly provides rotational motion and the reduction gearbox multiplies the torque through gear mechanisms. This segmentation allows the system to achieve high torque without requiring a single large high-powered motor, thus reducing the overall volume of the electric hinge while maintaining the required torque output.
Solution Approach 2:
The reduction gearbox acts as an intermediary between the motor assembly and the hinge mechanism. It receives low-torque high-speed rotation from the motor and transforms it into high-torque low-speed rotation suitable for driving the hinge. This intermediary mechanism enables torque multiplication without increasing the motor size, thereby solving the contradiction between torque requirements and volume constraints.
2Force
If a high-powered power member is used to increase the torque of the hinge, then the torque is improved, but the ease of operation deteriorates
Solution Approach 1:
By segmenting the power member into a compact motor assembly and reduction gearbox, the overall structure becomes more manageable and easier to install in confined spaces such as door edges. The modular design allows for easier positioning, alignment, and maintenance compared to a single large high-powered motor, thereby improving ease of operation while delivering the required torque.
Solution Approach 2:
The reduction gearbox changes the rotational parameters (speed and torque) to match the specific requirements of the hinge application. By optimizing the gear ratio, the system delivers high torque at the appropriate speed for door operation, making the system more convenient and easier to operate compared to using an oversized motor that would provide excessive force and require more complex control mechanisms.
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 system achieves a compact design with increased torque, reduced noise, and convenient operation by integrating the motor and reduction gearbox, allowing for efficient door control and access management through user recognition.
Implementation Method 1
The planetary gear assembly is sleeved by the planetary gear housing, and the planetary gear housing is connected to the seat by one end thereof
Data Source
AI summary
The present invention relates to a hinge system of an electric door comprising a control module, an intelligent automatic recognition system for installing in a door or a door frame and including a recognition device and a sensing module, and a hinge assembly. The hinge assembly comprises a pivot housing, a power unit disposed in the pivot housing and electrically connected to the control module, a first hinge member having a first knuckle for sleeving on the pivot housing and a second hinge member connected to two ends of the pivot housing. The power unit comprises a motor assembly having a motor axis, a reduction gearbox having one end connected to the motor axis, a gear shaft and plural planetary gears, and a gear connected to the gear shaft of the reduction gearbox.