Torque-Compensating Coupler for Antenna Module Rotation

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Solution Overview

Problem

Conventional 5G wireless routers face poor signal reception due to assembly tolerance deviations causing ineffective torque transfer and motor wear, leading to reduced antenna module rotation and shortened motor life.

Innovation Solution

A coupler is introduced with a plate body and coupler protrusion, wedging into a groove and slot, respectively, to compensate for assembly deviations, ensuring effective torque transfer and reducing motor wear.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If conventional direct coupling is used between motor and antenna module, then assembly is simple, but torque transfer is ineffective due to assembly tolerance deviations

Engineering Contradiction:

Improveassembly simplicityVSAvoidtorque transfer effectiveness

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The coupler serves as an intermediary component between the motor and antenna module. It includes a coupler groove that receives the motor's power source protrusion and a coupler protrusion that transmits torque to the antenna module's rotatable member connecting slot. This intermediate structure absorbs assembly tolerance deviations while maintaining effective torque transfer.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of manufacture

If assembly tolerance is not compensated, then manufacturing cost is low, but motor wear increases and service life shortens

Engineering Contradiction:

Improvemanufacturing costVSAvoidmotor service life

Core Design Contradiction:

Ease of manufactureVSDuration of action of stationary object

Solution Approach 1:

The coupler acts as a mediator that absorbs assembly tolerance deviations through its groove-and-protrusion design. The coupler groove receives the power source protrusion with clearance, allowing for positional deviations without transmitting excessive stress to the motor, thereby reducing wear and extending service life.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Ease of manufacture

If assembly tolerance deviations occur, then manufacturing is easier, but antenna module rotation fails

Engineering Contradiction:

Improveassembly toleranceVSAvoidantenna module rotation

Core Design Contradiction:

Ease of manufactureVSEase of operation

Solution Approach 1:

The coupler provides a tolerant interface between the motor and antenna module. The coupler groove is designed with sufficient width to accommodate the power source protrusion even when assembly tolerance deviations occur, ensuring that the antenna module can still be rotated without failure.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS12590608B2Electronic device and coupler thereof

Publication Date: 2026.03.31 WISTRON NEWEB CORP

AI summary

A coupler adapted to be connected to a power source and a rotatable member. The coupler includes a plate body and a coupler protrusion. A coupler groove is formed on the plate body, and the power source is adapted to be wedged into the coupler groove. The coupler protrusion is disposed on the plate body and adapted to be wedged into the rotatable member.