Pluggable PTC Heating Module for Direct Liquid Heating
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Solution Overview
Problem
Conventional electrical heating devices for electric automobiles have inefficient heating due to indirect heat transfer and complex replacement processes, leading to suboptimal performance and high maintenance costs when the heating module is damaged.
Innovation Solution
A pluggable heating module with a positive temperature coefficient (PTC) heating component and heat conducting components that directly contact the liquid, utilizing electric conductive and insulation heat conducting glues to enhance heat transfer and prevent electrical leakage, along with fluid passages for improved liquid flow and extended heating time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the heating module is directly fixed to the box body, then the structural stability is improved, but the ease of repair deteriorates because the entire device must be replaced when the heating module is damaged
Solution Approach 1:
The heating module is designed as a separable component that can be independently removed from the box body through a slot structure. This segmentation allows the heating module to be replaced without replacing the entire device, resolving the contradiction between structural stability and ease of repair.
Solution Approach 2:
The heating module is nested within the box body through a slot structure that allows insertion and removal. This nested design maintains structural integrity during operation while enabling easy replacement when needed, addressing both structural stability and repairability requirements.
2Device complexity
If the heating module heats the liquid by transferring heat to the box body, then the structural simplicity is improved, but the heating efficiency deteriorates due to indirect heat transfer
Solution Approach 1:
A heat conducting component is introduced as an intermediary between the heating module and the liquid. This component directly contacts the liquid and conducts heat from the heating module to the liquid, improving heating efficiency while maintaining relatively simple device structure.
Solution Approach 2:
The heating approach transitions from indirect heating through the box body wall to direct heating by introducing a heat conducting component that extends into the liquid. This dimensional change in heat transfer path significantly improves heating efficiency.
3Ease of repair
If the heating module is made as a separate replaceable component, then the ease of repair is improved, but the device complexity increases due to additional assembly and disassembly mechanisms
Solution Approach 1:
The device is segmented into a box body and a separable heating module connected through a simple slot structure. This segmentation enables easy replacement of the heating module without requiring complex assembly or disassembly mechanisms, thus improving ease of repair while minimizing device complexity.
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 improves the heating efficiency and reduces maintenance costs by allowing for easy replacement of the heating module and direct liquid heating, while preventing electrical leakage and enhancing heat conduction, resulting in a more effective and cost-efficient heating process.
Implementation Method 1
The heating module includes a positive temperature coefficient (PTC) heating component
Implementation Method 2
a heat conducting component covering the outside of the PTC heating component
Data Source
AI summary
An electrical heating device with pluggable heating module includes a box body (10) and a heating module (20). The box body (10) has an accommodation space (14) for the liquid (74) contained therein, which is provided with a slot (111) communicating the accommodation space (14). The heating module (20) is received in the slot (111) in a pluggable way and separates the accommodation space into a first chamber (141) and a second chamber (142). The heating module (20) includes a positive temperature coefficient (PTC) heating component (21) and a heat conducting component (22) covering the outside of the PTC heating component (21). By this arrangement, the time for maintaining the electrical heating device (1) can be saved and the liquid (74) heating effect of the electrical heating device (1) can be improved as well.