Hood System with Movable Arm for Targeted Air Suction Efficiency
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Solution Overview
Problem
Household hood systems often require greater energy consumption and noise due to the need for increased motor force to effectively capture odors and smoke from cooking vessels, as they are typically installed at a distance from the cooktop, leading to inefficient air suction.
Innovation Solution
A hood system with a movable arm and sensor module that adjusts the intake port position based on the sensed position of the cooking vessel and environmental changes, allowing for targeted air suction and optimized fan operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the hood system is installed at a distance from the cooktop, then it is easier to install and less intrusive, but air suction efficiency deteriorates
Solution Approach 1:
The patent applies the dynamics principle by making the arm movable rather than fixed. The arm can dynamically adjust its position to extend closer to the cooking vessel when needed, while maintaining its ability to be installed at a distance from the cooktop. This resolves the contradiction by allowing the system to have both installation convenience and effective air suction capability through dynamic repositioning.
2Productivity
If the motor force is increased to capture odors and smoke from a distance, then air suction efficiency improves, but energy consumption and noise increase
Solution Approach 1:
The movable arm allows the intake port to dynamically reposition closer to the cooking vessel, improving air suction efficiency without requiring increased motor force. The system achieves better productivity through positional adjustment rather than increased energy input, thereby reducing energy consumption and noise.
Solution Approach 2:
The arm acts as an intermediary mechanism that transfers the intake port closer to the cooking vessel. This intermediary structure enables improved air suction efficiency by reducing the distance between the fan and the odor source, allowing the motor to operate at lower power levels while maintaining effective performance.
3Productivity
If the intake port is positioned closer to the cooking vessel, then air suction efficiency improves, but the device complexity increases
Solution Approach 1:
The patent introduces a movable arm with a driving unit that enables dynamic positioning of the intake port. While this adds some structural complexity, it provides the benefit of improved air suction efficiency by allowing the intake port to be positioned closer to the cooking vessel when needed. The complexity is justified by the significant improvement in productivity.
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 enhances air suction efficiency in localized areas, reducing energy consumption and noise while improving user convenience by dynamically positioning the intake port to match the cooking activity, thereby enhancing the hood system's performance.
Implementation Method 1
a sensor module configured to sense an environmental state of the hood system
Implementation Method 2
a fan configured to generate airflow in the exhaust duct
Data Source
AI summary
A hood system including a main body comprising an exhaust duct, a fan configured to generate airflow in the exhaust duct, an arm including an intake port and configured to allow air to be sucked into the intake port so as to pass through the arm and thereafter in the exhaust duct, a driving unit configured to be driven to move the arm, a sensor module configured to sense an environmental state of the hood system, and at least one processor configured to control driving of the driving unit based on the sensed environmental state to move the arm and thereby position the intake port based on the sensed environmental state.