Cable Clamp Structure for Tight-Space Antenna Mounting
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Solution Overview
Problem
Existing cable clamps face difficulties in assembly, space utilization, and reliability, particularly in limited spaces behind 5G equipment and antennas, where they often require manual cable placement and have limited fixing strength due to size constraints.
Innovation Solution
A cable fixing device with a design that allows for easy assembly by snapping into feature holes of a reflector plate, reducing installation space requirements, and ensuring reliable fixing through a self-locking mechanism where the cable applies a reverse force to reinforce the clamp's engagement with the plate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If ordinary cable clamps are used with main body concentrated on the back of reflector, then the clamp structure is simple, but the space utilization is poor and the clamp cannot fit in limited spaces behind 5G equipment and ordinary antenna
Solution Approach 1:
The cable clamp is divided into multiple independent arms (first arm with first and second arm sections, second arm with third and fourth arm sections) that can be assembled separately and then combined. This segmentation allows the clamp to be installed in limited spaces and then expanded to provide sufficient cable fixing capability, resolving the contradiction between compact installation space and adequate fixing function.
2Strength
If existing cable clamps fix cables and clamps simultaneously, then the clamp structure is compact, but the fixing strength is limited and cables easily fall off when swinging due to external forces
Solution Approach 1:
The cable itself serves a dual function: it is both the object being fixed and an active component that reinforces the clamp's engagement with the reflector. When the cable is inserted, it applies a reverse force that pushes the clamp arms against the reflector, creating a self-reinforcing fixing mechanism. This eliminates the need for separate fixing mechanisms while significantly increasing fixing strength.
3Ease of operation
If cable clamps require manual cable placement before assembly, then the clamp can accommodate cable positioning, but the assembling operation is difficult and time-consuming
Solution Approach 1:
The clamp arms are pre-configured with cable holding sections and engagement features that guide the cable into place during insertion. The first arm section and third arm section are designed to cooperatively capture the cable as it passes through, eliminating the need for manual cable positioning before assembly and streamlining the installation process.
Data Source
AI summary
A cable fixing device includes an upper body to contact a cable, a lower body to travel through an opening of a plate-shaped structure along an engagement direction, and a middle body positioned between the upper body and the lower body along the engagement direction, the middle body to contact a side wall of the opening of the plate-shaped structure, where a height H1 of the sidewall of the opening of the plate-shape structure along the engagement position is smaller than a height H2 of the middle body along the engagement direction, and where a height difference ΔH between H2 and H1 decreases as the cable travels through the upper body along the engagement direction.