Ink Cartridge Positioning Structure for Reliable Device Mounting
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Solution Overview
Problem
Ink cartridges often face issues with improper matching and positioning during installation in image forming devices, leading to interference and ineffective mounting.
Innovation Solution
The ink cartridge design includes a recess part and positioning part to limit the relative position in specific directions, ensuring reliable alignment with the mounting part, and incorporates a notch and bump structure for secure engagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional ink cartridge design is used, then the structure is simple, but the matching and positioning reliability with mounting part is poor
Solution Approach 1:
The positioning structure is divided into multiple independent components: a recess part with side walls for first direction positioning, a positioning part for third direction positioning, and a chip. This segmentation allows each component to perform a specific positioning function, improving overall reliability while keeping the design modular and manageable.
Solution Approach 2:
The chip is disposed within the recess part, creating a nested structure where the chip is housed inside the recess. This nesting arrangement optimizes space utilization and ensures proper positioning of the chip relative to the mounting part, enhancing connection reliability without adding external complexity.
2Manufacturing precision
If positioning structures are added to improve matching, then positioning accuracy improves, but manufacturing complexity increases
Solution Approach 1:
The recess part and positioning part are merged into a single integrated structure on the cartridge body. This merging reduces the number of separate components that need to be manufactured and assembled, simplifying the manufacturing process while maintaining high positioning accuracy through the coordinated design of the combined structure.
Solution Approach 2:
The recess part includes side walls with specific geometric features localized to provide first direction positioning, while the positioning part provides third direction positioning. Each local region of the positioning structure has optimized geometric characteristics tailored to its specific positioning function, achieving high precision without requiring complex manufacturing across the entire cartridge.
3Reliability
If multiple positioning parts are used, then connection reliability improves, but the risk of interference during mounting increases
Solution Approach 1:
The recess part and positioning part are designed with asymmetric geometric features that complement the asymmetric mounting interface of the image forming device. This asymmetric design ensures proper alignment and engagement while preventing interference during the mounting process, as the asymmetric shapes guide the cartridge into the correct position without causing conflicts.
Solution Approach 2:
The recess part and positioning part are pre-configured on the cartridge body with precise geometric dimensions and orientations. This preliminary positioning arrangement ensures that when the cartridge is mounted, the chip and ink outlet are already positioned correctly relative to the mounting part, reducing the risk of interference during the mounting operation.
Data Source
AI summary
An ink cartridge including a cartridge body, a recess part, a positioning part and a chip disposed in the recess part, where the cartridge body includes an ink accommodating chamber for storing ink, the recess part is disposed on an upper side of the cartridge body and includes a side wall, at least a portion of the side wall is configured to limit a relative position between the ink cartridge and the image forming device in a first direction; the positioning part is disposed above the side wall, and in a second direction, at least a portion of the positioning part is located on a rear end side of the chip and is configured to limit the relative position between the ink cartridge and the image forming device in a third direction.