Coil Assembly Layout With Avoiding Space for Compact IH Cookers
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing electromagnetic cooking appliances suffer from a large space occupation due to the bending corners of magnetic stripe supporters, which affect the appliance's size and increase manufacturing costs.
Innovation Solution
A coil assembly design with a segmental magnetic stripe supporter structure, featuring a first and second mounting part connected by a connecting part, forming an avoiding space that minimizes space usage and prevents interference with the circuit board supporter, while using annular recesses and separators for coil winding and fixation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional magnetic stripe supporter with bending corners is used, then the magnetic stripe can be fixed to the coil base, but the bending corner occupies a large space and forms a large gap with the coil base
Solution Approach 1:
The magnetic stripe supporter is divided into multiple parts: a flat mounting plate with mounting holes for securing the magnetic stripe, and separate connecting arms that connect to the coil base. This segmentation eliminates the need for large bending corners while maintaining fixing reliability through distributed mounting points.
Solution Approach 2:
The connecting part of the magnetic stripe supporter utilizes the vertical dimension by extending downward to connect with the coil base, rather than using horizontal bending corners. This dimensional change allows the magnetic stripe to be fixed reliably while minimizing the horizontal space occupation and eliminating large gaps.
2Object-affected harmful factors
If the base supporter is heightened to prevent interference with the bending corner, then the interference is avoided, but the appliance size increases and manufacturing cost increases
Solution Approach 1:
The magnetic stripe supporter is segmented into a flat mounting plate and separate connecting arms, allowing the circuit board supporter to be positioned closer to the coil base without interfering with the magnetic stripe fixation. This eliminates the need to heighten the base supporter, thereby reducing appliance size.
Solution Approach 2:
The connecting arms of the magnetic stripe supporter act as intermediaries that bridge the magnetic stripe and the coil base, allowing the circuit board supporter to pass through the resulting space without causing interference. This mediator structure prevents interference while maintaining compact appliance dimensions.
3Ease of manufacture
If the magnetic stripe supporter uses a bending corner structure, then the magnetic stripe can be connected to the coil base, but the structure occupies excessive mounting space
Solution Approach 1:
The magnetic stripe supporter is segmented into a flat mounting plate and separate connecting arms, which simplifies the manufacturing process by eliminating complex bending corner formations. The segmented structure occupies minimal mounting space while maintaining ease of manufacture through standard fabrication processes.
Solution Approach 2:
The geometric parameters of the magnetic stripe supporter are changed from large bending corners to a flat plate with extended connecting arms. This parameter change reduces the mounting space occupation from a large angular volume to a minimal footprint, while the structure remains simple to manufacture.
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 design effectively saves space, reduces the overall size of the appliance, prevents interference, and lowers manufacturing costs by optimizing the magnetic stripe supporter's layout and integration with the coil base.
Implementation Method 1
The electromagnetic induction heating mode has gradually been the main heating mode for its high heating efficiency and easy controlling of heating time. The currently induction heating (IH) products in use, such as, IH rice cooker, IH pressure cooker, and so on, are commonly provided with coil assembly located at the bottom of the cooker body including magnetic stripe to electromagnetic induction heat the cooker body.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Disclosed is a coil assembly and an electromagnetic cooking appliance, and the coil assembly includes: a coil base, including a bottom wall and a side wall; a first coil and a second coil, fixedly located at the bottom wall and the side wall respectively; a plurality of magnetic stripe supporters, located at the coil base along a circumferential direction, the magnetic stripe supporter includes a first mounting part, a second mounting part, and a connecting part connected with the first mounting part and the second mounting part, the first mounting part is mounted at a bottom side of the first coil, the second mounting part is mounted at a side of the second coil away from the side wall, an extending surface of a bottom surface of the first mounting part, an extending surface of an outer-side surface of the second mounting part, and a surface of the connecting part away from the coil base cooperatively form an avoiding space. The coil assembly in the disclosure can effectively reduce the mounting space for the magnetic stripe supporter, and prevent the interference between the magnetic stripe supporter and the circuit board supporter in the electromagnetic cooking appliance, and then the whole size of the electromagnetic cooking appliance is much smaller, further resulting a better appearance and a lower manufacture cost.