CPE Damping Assembly With Friction-Controlled Fall Arrest
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Solution Overview
Problem
Existing fixing devices for outdoor equipment, such as 5G Customer Premise Equipment (CPE), fail to prevent equipment from falling and causing injury, leading to risks of communication interruption and equipment damage.
Innovation Solution
A damping device with a guide roller and friction cylinder system that uses a buffer mechanism to absorb external forces, generating friction to halt the equipment's fall, and a restoring mechanism to facilitate reassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a damping device is integrated into the CPE assembly, then shock and vibration protection is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The damping device is integrated directly into the CPE assembly structure, combining the housing, mounting bracket, and damping elements into a unified component system. This merging approach provides shock and vibration protection while avoiding the need for separate, additional damping components that would increase complexity.
Solution Approach 2:
The housing structure serves multiple functions: it protects the electronic components, provides structural support, and incorporates the damping device as an integrated feature. The mounting bracket simultaneously attaches the CPE to the vehicle and houses the damping elements, reducing overall assembly complexity despite adding protective functionality.
2Reliability
If a damping device is integrated into the CPE assembly, then shock and vibration protection is improved, but manufacturing cost increases
Solution Approach 1:
The damping device is combined with the housing and mounting bracket into an integrated assembly, allowing for reduced part counts and simplified manufacturing processes. This integration lowers tooling costs and assembly operations despite adding shock protection functionality.
Solution Approach 2:
The damping elements utilize elastomeric materials with specific durometer ratings (e.g., 60-80 Shore A) optimized for automotive applications. By selecting materials with appropriate damping characteristics and integrating them directly into the molded housing or mounting bracket, the solution provides effective shock protection at a cost-effective material and manufacturing level.
3Reliability
If damping elements are positioned at critical mounting points, then vibration isolation is improved, but design complexity increases
Solution Approach 1:
Damping elements are strategically positioned at specific critical locations within the CPE assembly, such as mounting bracket attachment points and housing interfaces subject to vibration. This localized placement provides targeted vibration isolation at critical stress points without requiring damping elements throughout the entire assembly, maintaining design simplicity.
Solution Approach 2:
The damping elements are pre-integrated into the housing or mounting bracket during manufacturing, with predetermined placement at optimal vibration isolation locations. This preliminary positioning during fabrication eliminates the need for complex field adjustments or complicated assembly procedures, simplifying both design and installation.
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
Prevents equipment from falling and reduces the risk of injury and communication disruption by controlling the equipment's descent speed and allowing for easy reassembly.
Implementation Method 1
The housing is made from a vibration-damping material such as an elastomeric material
Implementation Method 2
The housing is made from a vibration-damping material such as an elastomeric material
Data Source
Figure 1~2
Figure 3~6
AI summary
A damping device, comprising a housing (110), a guide roller (120), a friction cylinder (130) and a buffer shaft (150); the buffer shaft (150) comprises a shaft body (151) and a buffer member (152); the buffer member (152) is provided in the housing (110); one end of the shaft body (151) is connected to the buffer member (152), and the other end of the shaft body (151) is provided on a bottom plate of the housing (110); the guide roller (120) is rotatably provided on the shaft body (151); the friction cylinder (130) is sleeved outside the guide roller (120), and the outer diameter of the guide roller (120) is less than the inner size of the friction cylinder (130); a first wire inlet hole (112a) and a first wire outlet hole (112b) are provided on the side wall of the housing (110); a second wire inlet hole (130a) and a second wire outlet hole (130b) are provided on the friction cylinder (130); and the first wire inlet hole (112a) is opposite to the second wire inlet hole (130a), and the first wire outlet hole (112b) is opposite to the second wire outlet hole (130b). A CPE assembly is also provided.