Electric range
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Solution Overview
Problem
Existing electric ranges face challenges in adjusting the range and intensity of the magnetic field generated by the heating portion, and the brackets supporting these components often deform due to load and external forces, necessitating a structure that enhances rigidity and allows for flexible adjustment of the working coil's windings.
Innovation Solution
The electric range incorporates a core frame with a withdrawal portion that allows for adjusting the number of windings, total winding length, and winding range of the working coil, while maintaining the heating portion's size, using a guide rail system with removable sections to facilitate easy coil withdrawal and insertion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the number of windings, total winding length, and winding range of the working coil are adjusted to change magnetic field range and intensity, then the magnetic field adjustment capability is improved, but the device complexity increases
Solution Approach 1:
The guide rail system enables dynamic adjustment of the working coil's winding parameters. The coil can be moved along the guide rail to change the winding range and number of windings, transforming a static coil structure into a dynamic one that can adapt to different magnetic field requirements without complex mechanisms
Solution Approach 2:
The guide rail is divided into multiple sections with different geometries (first guide rail section, second guide rail section, third guide rail section), each providing different winding patterns. This segmentation allows the coil to be positioned at different locations to achieve different winding configurations, simplifying the overall adjustment mechanism
2Stability of the object's composition
If the heating portion size is kept constant while adjusting magnetic field parameters, then the heating area stability is improved, but the magnetic field adjustability is limited
Solution Approach 1:
Different sections of the guide rail provide different winding densities and patterns. By positioning the coil at different locations along the guide rail, the local winding density changes while the overall heating portion size remains constant, enabling magnetic field intensity adjustment without changing the heating area
Solution Approach 2:
Instead of adjusting magnetic field parameters by changing the heating portion size (one-dimensional adjustment), the invention uses the spatial position along the guide rail (adding a positional dimension) to control the winding range and number of windings, thereby adjusting magnetic field characteristics while maintaining constant heating area
3Ease of manufacture
If brackets are made with plate-shaped structure to support heating components, then the manufacturing simplicity is improved, but the structural rigidity deteriorates due to deformation under load
Solution Approach 1:
The guide rail incorporates curved and circular geometric features (circular cross-section, curved winding paths) that provide structural strength while maintaining manufacturing feasibility. The curved geometry of the guide rail enhances its rigidity to support the coil during winding adjustments without requiring complex bracket structures
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 design enables flexible adjustment of the magnetic field range and intensity, enhances coil support and stability, and maintains the heating portion's integrity, improving the electric range's performance and durability.
Implementation Method 1
An induction heating method may include a method of generating a magnetic field around a working coil 31 by applying high-frequency power to the working coil 31
Implementation Method 2
heat an object made of metal using an eddy current generated from the magnetic field
Implementation Method 3
A plurality of ferrite cores 330 may be disposed on the plurality of channels 323
Data Source
Figure 1
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AI summary
According to an embodiment, an electric range includes a core frame. The core frame includes a withdrawal portion on a top surface thereof, formed by removing a portion of a guide rail. The withdrawal portion is configured to guide withdrawal of a working coil to outside of the core frame. A portion of the working coil is disposed on the withdrawal portion. Thus, the number of windings of the working coil around the guide rail of the core frame, a total winding length of the working coil, and a winding range of the working coil is easily adjusted.