Ink Cartridge Channel Module Planar Positioning
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Solution Overview
Problem
Conventional ink cartridge manufacturing methods face challenges in accurately locating and attaching the channel module to the body, leading to reduced yield and potential stress concentration during welding, which affects the attachment quality.
Innovation Solution
The use of engaging parts on both the body and channel module, such as blocks and indentations, to fix the relative position in a two-dimensional plane, preventing movement and rotation, thereby enhancing the accuracy and quality of the attachment process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the channel module is located using blocks and indentations, then the assembly process is simplified, but the channel module can swing and positioning accuracy deteriorates
Solution Approach 1:
The patent transitions from one-dimensional linear positioning (blocks and indentations) to two-dimensional planar positioning (planar surface engagement). The channel module's bottom surface engages with the body's top surface over an area, constraining both position and orientation simultaneously, eliminating the swinging problem while maintaining assembly simplicity
Solution Approach 2:
The patent extracts the positioning function from the welding process itself and implements it separately through dedicated planar engagement surfaces. This separation allows positioning to be optimized independently from the attachment process, achieving both ease of assembly and high positioning accuracy
2Manufacturing precision
If interference fitting is used to prevent channel module swing, then positioning accuracy is improved, but stress concentration occurs during welding
Solution Approach 1:
The patent converts the potential harm of interference fitting (stress concentration) into a benefit by using it only for positioning rather than attachment. The planar engagement surfaces provide precise positioning without the need for interference fitting during welding, eliminating stress concentration while maintaining positioning accuracy
Solution Approach 2:
The patent segments the functions of positioning and attachment into separate mechanisms. Positioning is achieved through planar surface engagement, while attachment is achieved through welding or adhesive bonding. This segmentation allows each function to be optimized independently, preventing stress concentration during the attachment process
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
This solution improves the accuracy of the channel module's orientation and attachment to the body, enhancing the welding quality and yield, and allows for easier inspection and fitting, reducing the risk of stress concentration and improving the flexibility in ink chamber arrangement.
Implementation Method 1
The channel module 120 is attached to the bottom of the body 110 by means of ultrasonic welding, laser welding, or adhesive coating.
Implementation Method 2
The channel module 120 is attached to the bottom of the body 110 by means of ultrasonic welding, laser welding, or adhesive coating.
Data Source
AI summary
An ink cartridge is provided with a body, a channel module attached to the body, a plurality of first engaging parts, and a plurality of second engaging parts. The first engaging parts are arranged on one of the body and the channel module, while the second engaging parts corresponding to the first engaging parts are arranged on the other of the body and the channel module. The relative position of the body and the channel module on a two-dimension plane is substantially fixed by the engagement of the first engaging parts and the second engaging parts.