Sliding Battery Holder Cover Plate for Waterproof Camera Access

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Solution Overview

Problem

Existing camera battery covers are difficult to open, prone to accidental detachment or loss, and lack waterproofing, with buckle structures being easily damaged.

Innovation Solution

A battery holder cover plate featuring a first and second sliding cover, an open/close button, and an elastic sheet, with a clamping convex block and inner cover plate, allowing easy opening and closing while providing waterproof protection through a multilayer structure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a buckle structure is used for the battery cover, then the cover can be detached, but it is difficult to open, prone to accidental detachment, and easily damaged

Engineering Contradiction:
Improveease of opening battery coverVSAvoidstability of battery cover attachment
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent employs a sliding cover mechanism where the cover moves along a sliding path between a closed position (clamped by the clamping convex block) and an open position. This dynamic structure replaces the static buckle mechanism, allowing easy opening through linear motion while maintaining secure attachment when closed, thereby resolving the contradiction between ease of operation and reliability.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The battery cover is divided into multiple components: the sliding cover, the clamping convex block, the elastic sheet, and the button. This segmentation allows the cover to be opened through a simple button-pressing action that releases the clamping force, making operation easier while the distributed clamping structure enhances overall reliability and prevents accidental detachment.

Inventive Principle:
Principle #1Segmentation

2Ease of operation

If a buckle structure is used for the battery cover, then the cover can be removed, but it may accidentally fall off or be lost

Engineering Contradiction:
Improveease of battery cover removalVSAvoidretention of battery cover on camera
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The sliding cover mechanism dynamically transitions between closed and open states along a defined sliding path. When closed, the clamping convex block securely holds the cover in place, preventing accidental detachment. When opening is needed, the button releases the clamping force, allowing controlled movement along the sliding path. This dynamic design ensures the cover remains attached during normal use but can be easily removed when needed.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The elastic sheet acts as an intermediary between the button and the clamping convex block. Pressing the button compresses the elastic sheet, which releases the clamping force on the convex block, allowing the cover to slide open. This intermediary mechanism provides controlled operation while maintaining secure attachment during normal use, preventing accidental detachment.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of operation

If a buckle structure is used for the battery cover, then the cover can be detached, but the buckle is easily damaged

Engineering Contradiction:
Improvedetachability of battery coverVSAvoiddurability of battery cover structure
Core Design Contradiction:
Ease of operationVSStrength

Solution Approach 1:

The sliding cover mechanism replaces the fragile buckle structure with a robust sliding motion along a defined path. The cover is opened and closed through linear movement guided by the sliding path and controlled by the button-elastic sheet-clamping block mechanism. This dynamic sliding structure is far more durable than a buckle, as it distributes mechanical stress along the sliding path rather than concentrating it at a single pivot point, thereby enhancing overall structural strength and durability.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The battery cover system is segmented into the sliding cover, clamping convex block, elastic sheet, and button components. This segmentation distributes mechanical loads across multiple elements rather than concentrating stress in a single buckle structure. The sliding cover moves independently along its path, while the clamping mechanism provides secure attachment, resulting in a more durable and reliable system that resists damage from repeated use.

Inventive Principle:
Principle #1Segmentation

4Ease of manufacture

If a simple cover structure is used, then the manufacturing is easy, but the cover is not waterproof

Engineering Contradiction:
Improvesimplicity of battery cover structureVSAvoidwaterproofing capability
Core Design Contradiction:
Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The battery cover is segmented into multiple components: the sliding cover, the clamping convex block, the elastic sheet, and the button. This segmentation allows each component to be manufactured separately using simple processes, maintaining ease of manufacture. The assembled structure creates a sealed enclosure that provides waterproof protection, resolving the contradiction between manufacturing simplicity and waterproofing capability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The sliding cover mechanism introduces a dimensional aspect (linear sliding motion) to the cover structure. This sliding path, combined with the clamping action of the convex block, creates a sealed environment that prevents water ingress. The multi-component assembly achieves waterproofing without significantly complicating the manufacturing process, as each component remains relatively simple in design.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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

The solution enhances usability, durability, and waterproof capabilities, ensuring the battery cover remains securely attached and protects the battery from accidental detachment and water ingress.

Implementation Method 1

one end of the elastic sheet is connected to the first sliding cover, and the other end is connected to the open/close button; when the open/close button slides to the locked position, the elastic sheet abuts against the first sliding cover to limit relative sliding between the first sliding cover and the second sliding cover

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS12476317B2Battery holder cover plate and camera
Publication Date: 2025.11.18 DONGGUAN HDKING SMART TECH CO LTD
  • US12476317B2 patent drawing
  • US12476317B2 patent drawing
  • US12476317B2 patent drawing

AI summary

The present disclosure provides a battery holder cover plate and a camera. The battery holder cover plate includes a first sliding cover, a second sliding cover, an open/close button, an elastic sheet and an inner cover plate. The first sliding cover and the second sliding cover are slidably connected. One end of the elastic sheet is connected to the first sliding cover, and the other end is connected to the open/close button. The open/close button is arranged in a button through hole of the first sliding cover. The clamping convex block is arranged at one end of the arc of the first sliding cover. One end of the second sliding cover is provided with an open connecting hole. Compared with the prior art, the present disclosure can be more labor-saving and portable during opening of the battery holder cover plate. The battery holder cover plate is removable, waterproof and dustproof.