Coffee Grinder Modular Assembly for Easy Disassembly and Cleaning
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Solution Overview
Problem
Conventional coffee grinders are difficult to disassemble and reassemble, leading to accumulation of residual coffee powder, which can cause undesirable taste and odor issues and potential health risks from lethal aflatoxin formation.
Innovation Solution
A coffee grinder design that allows easy disassembly and reassembly through a first and second assembly part, utilizing a drive shaft, inner and outer burr shafts, and magnetic fixing components, facilitating cleaning and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the grinder is designed with a fixed structure, then the structural stability is improved, but the ease of disassembly and cleaning is worsened
Solution Approach 1:
The grinder is divided into multiple separable components: a body, a grinding component (including inner and outer burrs), and a removable cover. This segmentation allows each part to be independently cleaned and maintained while maintaining structural stability during operation. The grinding component can be detached from the body for thorough cleaning, resolving the contradiction between stability and ease of cleaning.
2Ease of manufacture
If the grinder uses a simple assembly structure, then the ease of manufacture is improved, but the reliability of preventing residual coffee powder accumulation is worsened
Solution Approach 1:
The grinding component (inner and outer burrs) is extracted as a separate removable unit from the body. This extraction allows the grinding surfaces to be completely removed for cleaning, ensuring no residual coffee powder remains in the grinding chamber. The simple assembly structure with few parts maintains ease of manufacture while the removable grinding component ensures complete cleaning capability.
3Device complexity
If the grinder maintains a compact design, then the device complexity is reduced, but the accessibility for maintenance is worsened
Solution Approach 1:
The inner burr is nested within the outer burr, and the grinding component is nested within the body cavity. This nested arrangement achieves a compact overall design while maintaining ease of maintenance. The cover can be removed to provide direct access to the nested grinding components, allowing maintenance without disassembling the entire device. The nested structure reduces device complexity while the removable cover ensures accessibility.
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
Enables convenient disassembly and reassembly of the grinding component, reducing residual coffee powder accumulation and minimizing health risks while maintaining grinder functionality.
Implementation Method 1
the elastic component is assembled between the drive rod and the fixing sleeve. One end of the elastic component is pressed against the drive rod. The other end of the elastic component is pressed against the fixing sleeve.
Implementation Method 2
the outer burr module of the grinding component, the inner fixing member, and the outer fixing member are magnetically held together
Data Source
AI summary
A coffee grinder including a base and a grinding component is provided. The base includes a body part, a first assembly part, and a second assembly part. The first assembly part and the second assembly part are connected to the body part and protrude from one side of the body part. The first assembly part is disposed above the second assembly part and includes a drive shaft. One end of the drive shaft faces the second assembly part. The grinding component includes an outer burr module and an inner burr shaft assembled in the outer burr module. A side surface of the outer burr module is assembled to the second assembly part. The drive shaft of the first assembly part is assembled with one end of the inner burr shaft. One end of the drive shaft drives the inner burr shaft to rotate relative to the outer burr module.