Electrical kitchen appliance having a discharge duct
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing household food preparation appliances with rotating accessories and evacuation ducts face the risk of liquid overflow due to the inlet being close to the inner side wall, causing liquids to rise and exit through the duct.
Innovation Solution
Incorporating a deflecting side wall between the inner side wall and the evacuation duct inlet, which extends around the axis of rotation, creating a screen that prevents liquids from reaching the inlet, and using an annular seal for better confinement and protection against splashes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the evacuation duct inlet is arranged close to the inner side wall of the working container, then the device structure is simplified, but liquid preparations can rise along the inner side wall and reach the discharge duct causing overflow
Solution Approach 1:
The deflecting side wall acts as an intermediary element positioned between the inner side wall and the evacuation duct inlet. It redirects liquid flow away from the inlet while allowing vapor to pass through, thus preventing liquid overflow without complicating the overall evacuation duct structure
Solution Approach 2:
The deflecting side wall extends in the axial direction of the working container, creating a new spatial dimension for flow control. This axial extension allows the deflecting surface to intercept liquid rising along the inner side wall and redirect it before it reaches the discharge duct inlet
2Object-affected harmful factors
If the deflecting side wall is positioned close to the inner side wall, then the screen effect is maximized, but the annular space for liquid circulation is reduced
Solution Approach 1:
The distance parameter between the deflecting side wall and the inner side wall is optimized to be between 5-20 mm. This parameter change balances the screen effect (preventing liquid from reaching the inlet) with maintaining sufficient annular space for liquid circulation and steam evacuation
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
Prevents liquid overflow by guiding liquids back into the container and protecting the motorized box from splashes, while maintaining effective evacuation of steam and liquids through the ducts.
Implementation Method 1
The liquid preparations reaching the underside of the intermediate lid can fall back by gravity into the working container, being guided by the deflecting side wall
Implementation Method 2
the rotation of the rotary working accessory can make the liquid preparations rise up along the inner side wall of the working container
Data Source
Figure 1
Figure 2
Figure 3
AI summary
- The invention relates to a household food preparation appliance comprising an upper motorized casing for rotating a rotary working accessory (57) along an axis of rotation (58), a working chamber (8) defined by a working receptacle (2) and an intermediate cover (3), the intermediate cover (3) having an exhaust duct (95) communicating the working enclosure (8) with the outside of the device, the drain (95) having an inlet (96) and an outlet (97). - According to the invention, the intermediate cover (3) comprises a deflecting side wall (31) arranged between an inner side wall (21) of the working container (2) and the inlet (96), and the distance between the wall inner side wall (21) and the deflecting side wall (31) is greater than 5% of the distance between the inner side wall (21) and the axis of rotation (58), and preferably greater than 10% of said distance.