Antenna Reflector Latching Mechanism with Spring-Loaded Release
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing hold-down and release mechanisms (HRMs) for large antenna reflectors in space-based applications are costly, have long lead times, and require additional components like motors, increasing weight and complexity.
Innovation Solution
A latching mechanism system featuring a rotating mechanism with radial flexible blades that stores potential energy when rotated in one direction, and releases it to rotate in the opposite direction, disengaging the latching pins from the latches, thereby releasing the antenna reflector.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional hold-down and release mechanisms (HRMs) with motors are used, then the antenna reflector can be reliably held and released, but the weight and cost increase due to additional components
Solution Approach 1:
The patent removes the motor component from the latching mechanism entirely. The release function is achieved through a purely mechanical spring-loaded system where the spring automatically engages and disengages the latching pin from the latch groove, eliminating the need for powered actuation while maintaining reliable holding and release functionality.
Solution Approach 2:
The spring mechanism serves multiple functions automatically: it provides the holding force to keep the latching pin engaged in the groove during normal operation, and it automatically releases the pin when the reflector needs to be deployed. The system uses the reflector's own movement to trigger the release, making the mechanism self-actuating without external power sources.
2Reliability
If traditional HRMs with separation nuts and control lines are used, then the antenna reflector can be securely attached, but the lead time and cost increase due to long lead time requirements
Solution Approach 1:
The patent changes the fundamental parameters of the latching mechanism from complex multi-component HRMs with separation nuts and control lines to a simplified spring-loaded pin system. This parameter change reduces the number of parts, eliminates complex assembly requirements, and significantly shortens the lead time while maintaining secure attachment capability through the spring's mechanical engagement force.
3Ease of manufacture
If a rotating mechanism with radial flexible blades is used, then the material and time costs are reduced, but the mechanism complexity increases due to the pivoting and energy storage requirements
Solution Approach 1:
The patent combines multiple functions into the spring mechanism: it serves as the rotating actuator, the energy storage device, the holding force provider, and the release trigger. By merging these functions into a single component, the overall system complexity is actually reduced despite the innovative design, as there are fewer separate parts to manufacture and assemble compared to traditional motorized systems.
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
This solution reduces material and time costs, eliminates the need for additional components like motors, and simplifies the release mechanism, while ensuring reliable deployment of the antenna reflector.
Implementation Method 1
The radial flexible blades are distorted when the pivoting mechanism is rotated in the first direction and held by the release mechanism, and wherein upon release of the release mechanism, stored potential energy in the distorted flexible radial blades rotates the pivoting mechanism in the second direction
Data Source
Figure 1A
Figure 1B
Figure 1C
AI summary
A system and method for holding and releasing a deployable component is provided. The system includes a plurality of latching mechanisms each including a first component attached to the deployable component and a second component attached to a spacecraft. In a hold position, each of the first components is held by a respective second component. A pivoting mechanism is disposed on the bottom surface of the deployable component that rotates to move the first component into the hold position. A release mechanism holds the pivoting mechanism in a stowed configuration wherein the pivoting mechanism is rotated in a first direction and the first components are held by the respective second components. Releasing the release mechanism rotates the pivoting mechanism in a second direction and releases the first components from the hold position.