Heating Body With Insulated Element for Uniform Atomization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electronic atomization devices, such as e-cigarettes, face issues with heating bodies that are not rigid enough, prone to damage, and uneven heating due to the circuit being directly printed on a ceramic substrate or metal sheet, leading to potential peeling and unequal heating on opposite sides.
Innovation Solution
A heating body design comprising a first and second heat-conducting substrate forming a recess with a receiving space for a heating element, insulated by an outer insulating layer, ensuring stability, reliability, and uniform heat distribution through transverse and longitudinal heating portions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If resistance paste is directly screen printed on a ceramic substrate or metal sheet to form a circuit, then the manufacturing process is simple, but the heating body is not rigid enough and the circuit is easily damaged, broken and peeled off
Solution Approach 1:
The heating body is divided into multiple independent layers: a substrate layer, a heating element layer with screen-printed resistance paste, and a protective coating layer. This segmentation allows each layer to perform its specific function while contributing to the overall structural strength, preventing the circuit from being easily damaged or peeled off while maintaining manufacturing simplicity.
Solution Approach 2:
The heating body uses a composite structure combining a ceramic substrate or metal sheet base with a specially formulated resistance paste containing binding agents and fillers. This composite material approach enhances the rigidity and adhesion of the circuit while maintaining the screen-printing manufacturing process, resolving the contradiction between ease of manufacture and structural strength.
2Ease of manufacture
If the heating body is formed by direct screen printing on a substrate, then the manufacturing cost is low, but the heating temperatures of two opposite sides of the heating body are unequal
Solution Approach 1:
The heating element is designed with non-uniform resistance paste distribution, where the paste concentration, thickness, or composition varies in different regions of the substrate. This local quality adjustment compensates for heat loss to the substrate, ensuring that both opposite sides of the heating body achieve uniform heating temperatures while maintaining the cost-effective screen-printing manufacturing method.
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 provides a highly stable, reliable, and cost-effective heating body with uniform heat distribution, preventing damage and ensuring consistent heating performance.
Implementation Method 1
the heating element comprises an insulating layer formed on an outer surface of the electrically conductive body, such that the heating element is insulated from the substrate
Implementation Method 2
a first heat-conducting substrate, wherein a side of the first heat-conducting substrate defines a recess; a second heat-conducting substrate, wherein the second heat-conducting substrate and the first heat-conducting substrate cooperatively form a substrate having a receiving space
Data Source
Figure 1
Figure 2~3
Figure 4~7
AI summary
A heating body includes: a first heat-conducting substrate (110), a second heat-conducting substrate (120), and a heating element (130). A side of the first heat-conducting substrate defines a recess (111). The second heat-conducting substrate and the first heat-conducting substrate cooperatively forms a substrate (101) having a receiving space. The heating element is received in the receiving space and comprising an electrically conductive body and an insulating layer wrapping an outer surface of the electrically conductive body, such that the heating element is insulated from the substrate. The heating body has a simple structure and can be easily assembled. Heat generated by the heating body may be distributed more uniformly.