Gimbal Arm Sealing Structure for Dustproof Centroid Adjustment

Solution Overview

Problem

Adjustable arms in photographing devices, especially those used in gimbals with adjustable centroids, face issues with dust and water ingress due to open structures, which can affect normal operation and reliability.

Innovation Solution

An arm adjustment structure with a movable arm relative to a base, featuring a clearing slot and a sealing member that covers the slot to prevent foreign matter entry, ensuring waterproof and dustproof performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If an open structure is used for the adjustable arm to ensure wiring clearance, then the wiring clearance problem is solved, but dust and water can enter the structure affecting gimbal operation

Engineering Contradiction:

Improvewiring clearanceVSAvoidgimbal operation

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The sealing member is nested within the adjustable arm structure, specifically positioned in the clearing slot to block foreign matter entry while allowing the arm to maintain its open configuration for wiring clearance. The sealing member acts as a nested protective element that doesn't interfere with the overall open structure.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The sealing member is designed as a flexible component that can be elastically deformed during arm movement and automatically returns to its original position. This flexible sealing film blocks the clearing slot to prevent dust and water entry while accommodating the dynamic movement of the adjustable arm.

Inventive Principle:

Principle #30Flexible shells and thin films

2Adaptability or versatility

If the arm is made movable relative to the base to adjust the centroid, then adaptability to various loads is improved, but the clearing slot becomes exposed to foreign matter

Engineering Contradiction:

Improvecentroid adjustmentVSAvoidforeign matter entry

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The sealing member is designed as a flexible component that can be elastically deformed during arm movement and automatically returns to its original position. This flexible sealing film blocks the clearing slot to prevent dust and water entry while accommodating the dynamic movement of the adjustable arm for centroid adjustment.

Inventive Principle:

Principle #30Flexible shells and thin films

Solution Approach 2:

The sealing member is designed to dynamically adapt to the movement of the arm. It can be elastically deformed during arm movement and automatically returns to its original position, maintaining sealing effectiveness throughout the range of motion while allowing centroid adjustment.

Inventive Principle:

Principle #15Dynamics

3Reliability

If the sealing member is added to cover the clearing slot, then waterproof and dustproof performance is improved, but the structure complexity increases

Engineering Contradiction:

Improvewaterproof and dustproof performanceVSAvoidstructure complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The sealing member is designed as a flexible component that can be elastically deformed during arm movement and automatically returns to its original position. This flexible sealing film blocks the clearing slot to prevent dust and water entry while accommodating the dynamic movement of the adjustable arm.

Inventive Principle:

Principle #30Flexible shells and thin films

Solution Approach 2:

The sealing member is designed to automatically return to its original position after being deformed during arm movement. This self-service mechanism eliminates the need for additional actuators or complex control systems to maintain sealing, reducing overall structural complexity while maintaining waterproof and dustproof performance.

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS11384894B2Adjustment structure, adjustment method therefor, sealing member, coaxial cable, gimbal, and mobile apparatus

Publication Date: 2022.07.12 SZ DJI TECH CO LTD

AI summary

An adjustment structure and an adjustment method therefor, a sealing member, a coaxial cable, a gimbal and a mobile apparatus are provided. The arm adjustment structure includes a base, an arm, and a sealing member. The arm is capable of moving relative to the base, and a clearing slot is disposed on the arm. The sealing member is disposed between the base and the arm, and is capable of being located at the clearing slot to cover the clearing slot. The sealing member is disposed between the base and the arm, and capable of being located at the clearing slot to cover the clearing slot to prevent the clearing slot from being exposed, and prevent foreign matters such as water droplets, sand, and dust from entering the gimbal through the clearing slot and affecting normal use of the gimbal.