Recessed Heating Plate for Skin Treatment Assembly
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Solution Overview
Problem
Existing heating plates for thermal-medical treatment of skin are costly to manufacture and lack flexibility in design and assembly, with complex production processes limiting their application and attachment options.
Innovation Solution
A heating plate design featuring a recess on its bottom side for attachment to a printed circuit board, allowing for efficient production through ablative laser processing or ceramic powder molding, enabling one-sided assembly and the integration of components like LEDs for luminous heating, which reduces manufacturing costs and increases design freedom.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If heating plates are soldered onto printed circuit boards with metallized holes and ceramic materials, then thermal contact is achieved with low thermal resistance, but manufacturing costs are high and production is complex
Solution Approach 1:
The heating plate is divided into a ceramic acting section and a separate connecting section made of electrically conductive material. This segmentation allows each part to be optimized independently - the ceramic section for thermal contact with skin and the connecting section for electrical connection to the printed circuit board, simplifying manufacturing while maintaining thermal performance
Solution Approach 2:
The invention uses a cost-effective connecting section made of electrically conductive material that can be attached via conductive adhesive instead of expensive metallized holes and sintering processes. This approach accepts slightly higher thermal resistance in exchange for dramatically reduced manufacturing costs and complexity
2Reliability
If heating plates are made with ceramic material and metallic contacting layers, then thermal conductivity is maintained, but design flexibility and attachment options are limited
Solution Approach 1:
By separating the ceramic acting section from the connecting section, the invention allows the connecting section to be made from various electrically conductive materials (metal, conductive polymer, conductive adhesive) depending on the specific application requirements, greatly enhancing design flexibility while the ceramic section maintains thermal conductivity
Solution Approach 2:
The connecting section serves multiple functions: electrical connection to the printed circuit board, mechanical support, and thermal conduction. By making this section separate and customizable, it can be optimized for different attachment methods (adhesive, mechanical, soldering) and material requirements, increasing overall versatility
3Productivity
If heating plates are minimally dimensioned with heating element and plate in immediate vicinity, then heat transmission efficiency is maximized, but assembly flexibility is reduced
Solution Approach 1:
The separation of the ceramic acting section from the connecting section creates natural assembly zones. The connecting section can be pre-assembled with the printed circuit board using various methods, then the ceramic section is attached separately, allowing flexible assembly sequences while maintaining minimal dimensions for efficient heat transmission
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 recessed heating plate design simplifies assembly, reduces production costs, and enhances flexibility in attachment and illumination, providing improved heat transmission and user-friendly application, especially in dark environments, while maintaining mechanical stability and thermal conductivity.
Implementation Method 1
The heating element is coupled to a temperature sensor. The heating element, with the interposition of a control unit, is connected to an electrically conductive interface or, via a Bluetooth connection, to the data-processing unit in such a way that the heating element is energized via one or more accumulators integrated into the data processing unit so that the heating element can be heated to a temperature predefined via the control unit.
Implementation Method 2
heating plates are usually used to transmit heat from a heating element to the skin area to be treated. To heat the heating plate, it is thermally contacted with a heating element.
Data Source
AI summary
A heating plate for the thermal-medical treatment of skin includes an acting section for being applied to the skin on a top side of the heating plate; a connecting section for attaching the heating plate to a printed circuit board on a bottom side of the heating plate; and a recess on the bottom side of the heating plate. A device for the thermal-medical treatment of skin and a method of manufacturing a heating plate are also disclosed.