Electric Steamer Pressure Feedback for Adaptive Steam Control
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Solution Overview
Problem
Conventional electric steamers produce a constant amount of steam regardless of food quantity, leading to excessive steam generation and energy inefficiency, and are unable to adjust steam output promptly to accommodate varying food demands, resulting in inadequate cooking and safety hazards.
Innovation Solution
An electric steamer equipped with a pressure sensor and steam arrangement that adjusts steam production based on food quantity, using a control circuit to manage the heating unit and prevent excessive steam emission, featuring a steam channel and pressure detecting chamber to buffer steam flow and prevent water condensate entry, ensuring optimal steam conditions and enhanced sealing properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional electric steamer generates a constant amount of steam, then the steaming process is simple to control, but the steam amount does not match the food quantity leading to excessive steam generation and energy waste
Solution Approach 1:
The patent employs a pressure sensor to detect steam chamber pressure and feeds this information back to the control circuit. The control circuit adjusts heating power based on pressure feedback signals, enabling dynamic steam generation that matches actual cooking needs rather than operating at constant power, thus reducing energy waste while maintaining operational simplicity
Solution Approach 2:
The patent transitions from static constant-power steaming to dynamic adaptive steaming. The heating unit's power output dynamically adjusts according to real-time pressure sensor readings, allowing the system to optimize steam generation rates based on current cooking conditions and food quantity, thereby eliminating excessive steam production and associated energy waste
2Device complexity
If a conventional electric steamer produces constant steam, then the device structure is simple, but it cannot promptly adjust steam output when food quantity changes resulting in inadequate cooking
Solution Approach 1:
The pressure sensor continuously monitors steam chamber pressure and provides real-time feedback to the control circuit. When food quantity increases and steam demand rises, the system detects pressure changes and promptly increases heating power to generate additional steam, ensuring adequate cooking performance without requiring complex manual intervention
Solution Approach 2:
The patent replaces manual monitoring and adjustment mechanisms with an automated electronic control system comprising a pressure sensor and control circuit. This substitution enables rapid, precise adjustment of steam output in response to changing cooking conditions, significantly improving cooking efficiency while adding only moderate device complexity
3Power
If a conventional electric steamer generates excessive steam, then the steaming power is sufficient, but the excessive steam and hot water are ejected causing safety hazards and dirtiness
Solution Approach 1:
The pressure sensor detects when steam chamber pressure approaches levels that could cause ejection and immediately signals the control circuit to reduce heating power. This feedback control prevents excessive steam generation and hot water ejection, eliminating safety hazards while maintaining sufficient steaming power for effective cooking
Solution Approach 2:
The system proactively monitors pressure buildup and takes preventive action by reducing power before dangerous pressure levels are reached. This beforehand cushioning approach prevents the formation of excessive steam and hot water ejection, thereby preventing safety hazards before they occur rather than reacting after problems arise
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
The solution allows for controlled steam generation tailored to food quantity, reducing energy waste, ensuring proper cooking, and enhancing safety by preventing excessive steam and hot water ejection, while maintaining energy efficiency and effective sealing.
Implementation Method 1
a pressure sensor and a steam arrangement are provided in the base
Implementation Method 2
the heating unit is controlled to operate on the basis of the signal from the pressure sensor
Implementation Method 3
heat up the water stored therein for steaming the food
Implementation Method 4
prevent water condensate entry
Data Source
AI summary
An electric steamer includes a cover (1), at least one steamer (2), a juice accumulating plate (3) and a base (4) which are overlapped sequentially from top to bottom. A water storage pool (41) and a control circuit are arranged in the base (4). A pressure sensor (7) is also mounted in the base (4). A steam inlet pipe (72) of the pressure sensor (7) is connected with the juice accumulating plate (3) and a signal output terminal of the pressure sensor (7) is connected with the control circuit through a wire. A steam delivering device (8) is provided between the steam inlet pipe (72) and the juice accumulating plate (3). An upper end of a steam channel (81) is connected with the juice accumulating plate (3). A method for controlling the electric steamer is further provided.