Pressure-Limiting Mounting Element for Safe Module Clamping
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Solution Overview
Problem
Existing mounting elements for modules, such as panels and keyboards, face issues with excessive torque during installation, which can lead to overstressing or destruction, especially when unsuitable tools like cordless drills are used, and lack effective torque limitation mechanisms when torque wrenches are not employed.
Innovation Solution
A mounting element with a displacement element that fills the tool holder's mounting recess when maximum pressure is exceeded, preventing further actuation and ensuring safe installation without the need for a torque wrench, featuring a design with a dismantling recess for controlled release and adjustable contact pressure through a resilient clamping element.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a torque wrench is used to limit torque, then the maximum torque can be controlled, but the distribution of torque is affected by different coefficients of friction and operating errors may occur
Solution Approach 1:
The mounting element performs self-limitation of contact pressure through the displacement element. When the contact pressure reaches the maximum value, the displacement element automatically fills the mounting recess, preventing further tightening. This self-service mechanism eliminates the need for external torque wrenches and ensures reliable pressure limitation without being affected by friction coefficients or user operating errors.
2Force
If a locking mechanism is used to limit torque in the mounting element, then the maximum torque is limited, but the device complexity increases
Solution Approach 1:
The invention changes the approach from mechanical locking mechanisms to a displacement-based parameter change. The displacement element changes its position parameter from a retracted state to an extended state that fills the mounting recess when maximum contact pressure is reached. This parameter change mechanism is simpler than traditional locking mechanisms while achieving the same torque limitation effect.
3Reliability
If the contact pressure is increased to ensure secure mounting, then the mounting reliability improves, but the risk of overstressing or destruction of the mounting element or module increases
Solution Approach 1:
The displacement element is pre-configured with a specific length designed to fill the mounting recess exactly when the contact pressure reaches the maximum safe value. This preliminary design ensures that before excessive pressure can cause damage, the displacement element proactively blocks further tightening by filling the mounting recess, thus preventing overstressing or destruction while ensuring secure mounting.
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 prevents material fatigue and breakage by limiting contact pressure to a safe maximum, allowing quick and secure module mounting and dismantling, even with tools like cordless drills, while ensuring that the maximum pressure is not exceeded, thus protecting both the module and the main body.
Implementation Method 1
a resilient clamping element (6), which is connected to the pressure element (41) and to the counterpressure element (42)
Implementation Method 2
a displacement element (8), which is connected to the clamping element (6) and fills the tool holder region (511) as soon as the contact pressure (p) exceeds a maximum pressure (pmax)
Data Source
AI summary
A mounting element which allows for safe mounting of a module on a main body, the contact pressure acting on the module or on the main body not exceeding a maximum pressure, includes a control unit, a resilient clamping element and an actuation element. The control unit includes a pressure element and a counterpressure element, and the resilient clamping element is connected to the pressure element and to the counterpressure element. The actuation element includes a tool holder having a mounting recess and increases or reduces a contact pressure of the resilient clamping element between the pressure element and the counterpressure element when actuated in a tightening direction and a release direction, respectively. The mounting element further includes a displacement element that is connected to the clamping element and fills the mounting recess of the tool holder as soon as the contact pressure exceeds a maximum pressure.