Heating Element Cooling Assembly for Reliable Cooking Appliances
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Solution Overview
Problem
Existing cooking appliances suffer from malfunction and damage due to overheated electric elements, which are not efficiently cooled.
Innovation Solution
A cooking appliance design that includes a heat sink connected to the heating element, a cooling fan, and a flow guide to direct cooling air towards the heating element, creating separate cooling passages to efficiently dissipate heat.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cooling system is added to cool electric heating elements, then the reliability of the cooking appliance is improved, but the device complexity increases
Solution Approach 1:
The cooling system components (heat sink, cooling fan, and flow guide) are merged into an integrated cooling assembly that works together as a unified system. The flow guide is integrated with the heat sink structure, and the cooling fan is positioned to work in conjunction with both the heat sink and flow guide, creating a compact combined cooling system that cools the heating element while avoiding the need for separate independent cooling mechanisms.
2Productivity
If a flow guide is used to direct cooling air to the heating element, then the cooling efficiency is improved, but the device complexity increases
Solution Approach 1:
The flow guide is designed with specific local structures including a first surface facing the heating element, a second surface facing the cooling fan, and side surfaces connecting them. The flow guide has a thickness that varies in different regions, with the thickness being greater near the heating element to maintain pressure and directed toward the cooling fan for efficient air intake. This localized structural optimization directs cooling air precisely where needed without requiring a complex overall system design.
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 effectively cools electric heating elements, preventing overheating and malfunctions, thereby extending the lifespan and reliability of the cooking appliance.
Implementation Method 1
a heat sink connected to the heating element, to radiate heat generated by the heating element
Implementation Method 2
a cooling fan located at one side of the heat sink, to blow cooling air to the heat sink
Implementation Method 3
a flow guide covering at least a portion of the heat sink and guiding a portion of the cooling air to flow to the heating element
Data Source
AI summary
A cooking appliance includes at least one heating element; a heat sink connected to the heating element, to radiate heat generated by the heating element; a cooling fan located at one side of the heat sink, to blow cooling air to the heat sink; and a flow guide covering at least a portion of the heat sink and guiding a portion of the cooling air to flow to the heating element.