Kitchen hood with height adjustment
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Solution Overview
Problem
Kitchen hoods often fail to maintain indoor air quality due to improper maintenance, leading to the accumulation of harmful pollutants like bacteria and gases, which can pose health risks and reduce efficiency.
Innovation Solution
A kitchen hood design featuring a sliding suction grill and steam cleaning assembly, along with an air quality sensor and automatic height adjustment, to enhance filtration and cleaning efficiency by adjusting the suction position and performing regular steam cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the kitchen hood is installed at a fixed height, then the structure is simple and easy to install, but it cannot adapt to different cookware heights and reduces suction efficiency
Solution Approach 1:
The patent implements a movable inner case that can slide vertically along the outer case, transforming the fixed-height hood into a dynamic system. The inner case with suction grill can be positioned at different heights to adapt to various cookware, while the outer case remains stationary for simple installation. This dynamic structure resolves the contradiction by allowing height adjustment without complicating the overall installation process.
Solution Approach 2:
The hood is divided into two separate cases: an outer case that remains fixed and an inner case that moves. This segmentation allows the outer case to maintain simple installation while the inner case provides adaptability through vertical movement. The suction grill is part of the movable inner case, enabling independent adjustment of the suction position.
2Productivity
If the suction grill is fixed, then the structure is simple, but it cannot maintain optimal suction position when cookware height varies, reducing air quality efficiency
Solution Approach 1:
The suction grill is integrated into the movable inner case, making it dynamic rather than fixed. The entire inner case including the suction grill can be positioned at different heights to maintain optimal suction distance from the cookware surface, thereby improving air quality efficiency without requiring a complex adjustable grill mechanism.
3Reliability
If manual cleaning is used, then the device complexity is low, but cleaning effectiveness is insufficient and time-consuming
Solution Approach 1:
The patent implements an automatic cleaning system where the movable inner case can be pulled out for easy access, and a steam cleaning function is provided to automatically clean the suction grill and internal components. This self-service cleaning mechanism improves cleaning effectiveness and reliability while minimizing the need for complex manual intervention.
Solution Approach 2:
The design allows the inner case to be easily pulled out before cleaning operations, preparing the cleaning area in advance. This preliminary action of extending the inner case makes subsequent cleaning more effective and accessible, whether performed manually or through automatic steam cleaning functions.
4Adaptability or versatility
If the hood structure is compact and fixed, then installation is simple, but it cannot accommodate varying kitchen spaces and cookware sizes
Solution Approach 1:
The movable inner case within the fixed outer case provides a dynamic solution that adapts to varying kitchen spaces and cookware sizes. The inner case can be positioned at different heights and extended outward, allowing the hood to accommodate different spatial requirements while the outer case remains fixed for simple installation.
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
Improves air filtration and cleaning efficiency by ensuring proper suction and regular cleaning, reducing health risks and maintaining better indoor air quality.
Implementation Method 1
a steam cleaning assembly (600) configured to release steam to clean an interior of the kitchen hood
Implementation Method 2
an evaporator configured to heat water to produce steam for the steam cleaning assembly
Implementation Method 3
a condenser configured to condense water vapor from air that is suctioned by the kitchen hood
Implementation Method 4
a fan configured to suction air from a kitchen environment
Data Source
AI summary
A kitchen hood has a first housing and a second housing that slides into and out of the first housing to adjust a length of the kitchen hood. The first housing has a fan to suction air, an outlet, and an air quality sensor assembly to continuously detect air quality in a kitchen. The second housing has an inlet and suction grill through which air is suctioned, a steam cleaning assembly to automatically steam clean an interior of the kitchen hood, and a height sensing assembly to sense a height of cookware seated on a cooktop surface below the second housing. The kitchen hood may be lengthened or shortened based on the sensed height of the cookware, and a speed of the fan and the height of the kitchen hood may be automatically adjusted based on detections by the air quality sensor assembly.