Spring-Loaded Damper Assembly for Twist-Free Rotation Control
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Solution Overview
Problem
Existing damper assemblies with springs are difficult to assemble and install, and they often exert undesired twisting forces due to the spring's force, making them challenging to operate effectively.
Innovation Solution
A spring-loaded damper assembly with a housing and rotor that includes rotation-limiting protuberances and a spring retainer, allowing for preloading and torque balance, which simplifies assembly and installation while minimizing twisting forces by using a rotor and housing with specific protuberances to limit rotation and secure the spring in a preloaded position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a spring is used to provide damping force, then the damping function is improved, but the assembly becomes difficult to operate due to undesired twisting forces
Solution Approach 1:
A torque arm is introduced as an intermediary component between the spring and the moving component. The torque arm converts the linear spring force into a rotational moment, mediating the force transmission and eliminating undesired twisting forces on the moving component while maintaining the damping function.
Solution Approach 2:
The spring is extracted from direct connection to the moving component and repositioned to connect to the torque arm instead. This separation removes the harmful twisting effect from the moving component while preserving the damping function through the torque arm's rotational mechanism.
2Reliability
If a spring is installed in a traditional damper assembly, then damping capability is provided, but the assembly exerts undesired twisting forces into the structure
Solution Approach 1:
The torque arm serves as a mediator that transforms the linear force from the spring into a controlled rotational moment. This intermediary mechanism converts the harmful twisting forces into a useful rotational damping action, eliminating the harmful effect while maintaining the damping capability.
Solution Approach 2:
The spring force that would normally create harmful twisting moments is converted through the torque arm's rotational geometry into a beneficial rotational damping moment. The harmful twisting force is transformed into a useful damping function that resists unwanted motion.
3Reliability
If a traditional damper assembly is designed, then basic damping function is achieved, but assembly and installation are difficult
Solution Approach 1:
The damper assembly is segmented into distinct functional components: a mounting component, a torque arm, and a spring. This segmentation allows each component to be manufactured and assembled independently, simplifying the overall assembly process and installation while maintaining the complete damping function.
Solution Approach 2:
The torque arm is designed as a dynamic component that rotates about a pivot point, allowing the assembly to adapt to different installation configurations. This dynamic design simplifies installation by accommodating various mounting orientations and positions while maintaining proper damping function.
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 enables easy assembly and installation of the damper assembly, balances torque, and eliminates undesired twisting forces, allowing for efficient operation and secure attachment to components like glove compartments and door handles within vehicles.
Implementation Method 1
a spring that is configured to couple to the housing and the rotor in a preloaded position
Data Source
AI summary
A damper assembly (100) is configured to dampen motion between a first component and a second component. The damper assembly (100) includes a housing (102) having at least one housing rotation-limiting protuberance (126). A rotor (104) is rotatably coupled to the housing (102). The rotor (104) includes at least one rotor rotation-limiting protuberance (160). The housing rotation-limiting protuberance(s) (126) and the rotor rotation-limiting protuberance(s) (160) cooperate to limit a range of rotation of the rotor (104) relative to the housing (102).