Modular PTC Heating Assembly for Variable Thermal Output
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing heating devices require multiple heat exchanger bodies for different thermal outputs, leading to increased manufacturing complexity and costs, as well as challenges in handling and aligning resistance heating elements for efficient heat transfer.
Innovation Solution
A modular heating device design featuring a single heat exchanger body with a frame that allows for adjustable placement of heating elements, including PTC elements, and a plastically deformable connecting section for improved heat transfer, enabling a single heat exchanger body to serve multiple thermal outputs and simplifying assembly and alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple heat exchanger bodies are used for different thermal outputs, then the heating device can achieve different heat outputs, but the manufacturing complexity and cost increase
Solution Approach 1:
The heating device is segmented into a standardized heat exchanger body and separate heating elements that can be independently configured. This allows different thermal outputs to be achieved by varying the number of heating elements rather than creating different heat exchanger bodies, thereby reducing manufacturing complexity while maintaining versatility
Solution Approach 2:
The heat exchanger body is designed as a universal component that can accommodate different numbers of heating elements. The receiving cavity and pressing mechanism are standardized to work with any configuration of heating elements, enabling a single heat exchanger body design to serve multiple thermal output requirements
2Adaptability or versatility
If multiple heat exchanger bodies are used for different thermal outputs, then the heating device can achieve different heat outputs, but the manufacturing cost increases
Solution Approach 1:
By separating the heating elements from the heat exchanger body, the manufacturing process is simplified. The heat exchanger body can be produced in large quantities as a standardized component, while heating elements are added in the required number for each thermal output level, reducing overall manufacturing cost
Solution Approach 2:
Heating elements are pre-assembled in frames with power supply devices and insulating devices before being inserted into the heat exchanger body. This preliminary assembly simplifies the final manufacturing step and reduces labor costs while maintaining the ability to configure different thermal outputs
3Manufacturing precision
If resistance heating elements are directly placed in the receiving cavity, then the heat transfer can be efficient, but the handling and alignment during assembly becomes difficult
Solution Approach 1:
Multiple heating elements, power supply devices, and insulating devices are merged into a single integrated frame assembly. This combination makes the assembly easier to handle as a single unit while ensuring proper alignment and contact with the heat exchanger body surfaces, thereby maintaining heat transfer efficiency
Solution Approach 2:
The frame provides a three-dimensional structure that holds heating elements in precise positions. This spatial framework ensures proper alignment with the receiving cavity surfaces during assembly, making handling easier while maintaining the required manufacturing precision for efficient heat transfer
4Ease of manufacture
If a single heat exchanger body is used for different thermal outputs, then the manufacturing cost and complexity are reduced, but the heating elements must be precisely positioned and pressed uniformly
Solution Approach 1:
The frame is designed with asymmetric features including guide devices that interact with corresponding features in the heat exchanger body. This asymmetric design ensures that the frame assembly is positioned correctly and uniformly pressed against the heat exchanger body surfaces, maintaining manufacturing precision while using a standardized heat exchanger body
Solution Approach 2:
The frame acts as an intermediary component between the heating elements and the heat exchanger body. It provides a standardized interface with guide devices and pressing surfaces that ensure uniform positioning and pressing, allowing a single heat exchanger body design to work with different thermal output configurations
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 reduces manufacturing costs and complexity by allowing a single heat exchanger body to be used for various thermal outputs, enhances handling and alignment of heating elements, and improves heat transfer efficiency through precise positioning and pressure distribution.
Implementation Method 1
the heating element is arranged in a thermally conductive connection to the heat exchanger body in the receiving cavity
Implementation Method 2
resistance heating elements arranged in a receiving cavity of the heat exchanger body
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The heating unit (100) comprises a heating element (1), particularly PTC element, with current supplying unit (3) and insulating unit (10).The heating element in heat conducting connection to heat exchanger body (200) is arranged in receiving cavity (20).The heating element is arranged in the framework (2) as a seperately managebale component.The framework with the heating element is inserted into the receiving cavity for the assembly of heating unit.