Recording Apparatus Battery Mount Liquid Ingress Protection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing recording apparatuses with detachable batteries face issues with liquid ingress and deterioration of coupling terminals, especially when the apparatus is placed with the cover facing down, causing liquids to enter the joint between the cover and housing and adhere to the coupling terminal.
Innovation Solution
The recording apparatus incorporates a battery mount portion with a recessed area, a coupling terminal, and a covering portion that overlaps in the depth direction, diverting liquid flow away from the coupling terminal, and optionally includes a groove or liquid absorber to prevent liquid from reaching the terminal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a cover is provided to cover the coupling terminal when the battery is unmounted, then the coupling terminal is protected from foreign matter, but liquid can still enter through the joint between the cover and housing and deteriorate the coupling terminal
Solution Approach 1:
The patent introduces a new spatial dimension by positioning an overlapping portion of the cover and housing in the depth direction of the recessed portion. This overlapping structure creates a three-dimensional barrier that blocks liquid paths without interfering with the cover's primary covering function, thus resolving the contradiction between foreign matter protection and liquid ingress resistance.
2Ease of operation
If the cover and housing overlap to fix the cover, then the cover is securely mounted, but the overlapping portion forms an entering path for liquid
Solution Approach 1:
The patent applies local quality by creating a specific overlapping structure at a particular location (in the depth direction of the recessed portion, outside the liquid path). This localized overlapping provides both mechanical fixation and liquid blocking functions without compromising the overall cover mounting security, thus resolving the contradiction between cover fixation and liquid path formation.
Data Source
AI summary
A battery mount portion includes a recessed portion into which a portion of a battery enters, a coupling terminal provided inside the recessed portion and configured to be electrically coupled to the battery, and a covering portion that covers the coupling terminal and that constitutes a portion of the housing. In a state in which the battery is unmounted, a cover that covers an area in the battery mount portion other than the covering portion is detachably attachable, and a portion where the cover and the housing overlap each other in a depth direction of the recessed portion is located outside a path of a liquid heading towards the coupling terminal after entering the recessed portion through a portion where the cover and the covering portion oppose each other.