Handle Sensor Module With Direct Force Transmission Sensitivity
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Solution Overview
Problem
Existing handle modules with electronic sensor units have limitations in sensitivity and require complex support structures for actuating force transmission, leading to inefficiencies and limited adaptability.
Innovation Solution
The electronic sensor module features a direct actuating force transmission mechanism using a movable sensor element and a fixed sensor element, with a lever ratio adjustment to enhance sensitivity and compact design, allowing for various applications and easy production with different transmission ratios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a support structure is deformed to transmit actuating force to the sensor element, then the sensor can be actuated, but the measurement sensitivity is limited and the structure becomes more complex
Solution Approach 1:
The invention extracts the actuating force transmission function from the support structure and assigns it to a dedicated actuating element. This separates the sensing function (sensor elements) from the actuation function (actuating element), allowing each to be optimized independently. The actuating element directly transmits force to the movable sensor element without requiring deformation of the support structure, thereby increasing measurement sensitivity while reducing overall structural complexity.
Solution Approach 2:
The actuating element serves as an intermediary between the external actuating force and the movable sensor element. This intermediary component is specifically designed to transmit actuating forces efficiently to the sensor, enabling sensitive measurement while keeping the support structure simple and rigid. The actuating element mediates the force transmission path, decoupling the sensor from the support structure deformation requirements.
2Adaptability or versatility
If sensor materials of different stiffness are used, then adaptability to different applications is improved, but achieving the same measurement sensitivity becomes difficult
Solution Approach 1:
The invention changes the transmission ratio parameter of the actuating element to compensate for differences in sensor material stiffness. By adjusting the lever ratio or transmission ratio of the actuating mechanism, the system can achieve the same measurement sensitivity regardless of whether rigid or flexible sensor materials are used. This parameter adjustment capability enables the sensor module to adapt to different applications with varying sensor materials while maintaining consistent performance.
3Measurement precision
If the actuating path is lengthened to increase sensor path, then sensor sensitivity is improved, but the actuating element size increases
Solution Approach 1:
The actuating element is designed as a lever mechanism with a pivot point, allowing dynamic adjustment of the transmission ratio. By changing the position of the pivot point or the length of lever arms, the system can achieve a long sensor path (for high sensitivity) while keeping the actuating element compact. The lever mechanism provides mechanical advantage that amplifies the sensor path length without requiring a proportionally long actuating element, enabling sensitive measurement in a compact form factor.
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 solution increases measurement sensitivity, enables compact design, and allows for versatile use across different applications while protecting the sensor unit from external influences.
Implementation Method 1
an actuating element which is arranged such that it transmits the actuating force directly to the movable sensor element so that an actuating path of the actuating element can be converted into a sensor path of the movable sensor element
Implementation Method 2
the movable sensor element can be designed as a lever, in particular, a one-sided lever or a two-sided lever
Implementation Method 3
a predetermined transmission ratio of 1:4 or 1:2 can be set. In particular, the sensor module according to the invention can be easily produced with different transmission ratios
Data Source
AI summary
An electronic sensor module for a handle may have a sensor unit having a movable sensor element and a fixed sensor element which is arranged opposite the movable sensor element. The module may also have an electronics unit which is electrically connected to at least one of the sensor elements for triggering a switching signal. The movable sensor element and the fixed sensor element are arranged relative to one another such that, in the event of an actuating force acting upon the sensor module, the movable sensor element is displaceable relative to the fixed sensor element. An actuating element is provided which is arranged such that it transmits the actuating force directly to the movable sensor element so that an actuating path of the actuating element is convertible into a sensor path of the movable sensor element. A handle module with the module is also provided.