Pressure cooker device
Solution Overview
Problem
Existing pressure cooking appliances face issues with user errors such as forgetting to lock the lid, which wastes time, and the need for complex designs to prevent lid unlocking during high pressure, leading to increased costs and reduced design freedom due to safety constraints.
Innovation Solution
A pressure cooking appliance with a single rotary control member that integrates locking/unlocking of the lid and pressure selection, featuring a first member for manual control of the lid's locking/unlocking and a second member for pressure adjustment, ensuring the lid is properly locked before initiating cooking and preventing unintended unlocking during high pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex locking mechanism with multiple components is used to prevent lid unlocking during high pressure, then safety is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent combines the locking/unlocking control and pressure selection functions into a single rotary control member. This integration eliminates the need for separate control mechanisms, reducing device complexity while maintaining safety through the interdependent functional design where both operations are performed by one unified component.
Solution Approach 2:
The rotary control member serves multiple functions: it controls lid locking/unlocking and simultaneously selects pressure levels for cooking. This multi-functionality reduces the number of separate components needed, simplifying the overall device structure while ensuring that safety-critical functions are integrated rather than separated into multiple independent systems.
2Reliability
If a complex locking mechanism is used to prevent lid unlocking during high pressure, then safety is improved, but manufacturing cost increases
Solution Approach 1:
By merging the locking control and pressure selection into a single rotary control member, the patent reduces the total number of parts that need to be manufactured and assembled. This integration simplifies the manufacturing process and reduces costs while maintaining the safety function through the interdependent design of the unified control mechanism.
3Ease of operation
If separate control members for locking/unlocking and pressure selection are used, then functional clarity is improved, but device complexity increases
Solution Approach 1:
The patent merges locking/unlocking control and pressure selection into a single rotary control member with distinct operational positions. This integration maintains functional clarity through clear positional differentiation while reducing device complexity by eliminating separate control mechanisms. The unified design ensures that both functions are coordinated through one control element.
Data Source
Figure 1~3
Figure 4~6
Figure 7~9
AI summary
The invention relates to a food pressure cooker device, comprising a chamber, a lid, a first element (6) permitting a user to control the locking/unlocking of the lid relative to the chamber and a second element (9), permitting a user to alter the pressure in the device, said first and second elements (6, 9) being mobile relative to each other, characterised in that the first and second elements (6, 9) interact with each other such that the relative mobility thereof depends at least partly on the relative position thereof. Food pressure cooking devices.