Heating module for air circulation system
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Solution Overview
Problem
Conventional air circulation systems face issues with foreign substances adhering to heaters, leading to soot, odor, fire risks, and increased costs due to filter maintenance, and inefficiencies in heat transfer.
Innovation Solution
A heating module with a heater unit on the housing surface, utilizing a heat generation electrode and resistance electrode layers to control temperature, and core portions and fins for enhanced heat transfer without direct air contact, eliminating the need for separate filters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a filter is installed before the heater to remove foreign substances, then the risk of soot and fire is reduced, but the filter requires periodic cleaning and replacement, increasing maintenance costs and complexity
Solution Approach 1:
The harmful function of the heater surface (where dust accumulates and burns) is extracted and separated from the heating function. The heater wire is moved inside the ceramic bead cavity, so only the ceramic bead surface contacts the air flow, not the heating element itself.
Solution Approach 2:
Ceramic beads serve as an intermediary substance between the heater wire and the air flow. The heater wire is embedded within the ceramic bead cavity, allowing heat transfer to air while preventing direct contact between combustible dust and the heating element.
2Reliability
If a filter is installed before the heater, then foreign substances are filtered out, but the system requires periodic filter maintenance, increasing operating costs and time consumption
Solution Approach 1:
The harmful function of the heater surface (where dust accumulates and burns) is extracted and separated from the heating function. The heater wire is moved inside the ceramic bead cavity, so only the ceramic bead surface contacts the air flow, not the heating element itself.
Solution Approach 2:
The ceramic bead structure provides self-cleaning functionality. Since the heater wire is enclosed within the ceramic cavity, any dust that accumulates on the external ceramic surface can be easily removed without disassembling the heater, and the enclosed heater wire is protected from direct dust accumulation.
3Productivity
If the heater is directly exposed to air flow, then heating efficiency is high, but foreign substances can adhere to the heater surface and cause soot, odor, and fire risks
Solution Approach 1:
Ceramic beads serve as an intermediary substance between the heater wire and the air flow. The heater wire is embedded within the ceramic bead cavity, allowing heat transfer to air while preventing direct contact between combustible dust and the heating element.
Solution Approach 2:
Different parts of the heater structure have different functions: the ceramic bead external surface contacts air flow and can be easily cleaned, while the internal cavity houses the heater wire protected from direct dust contact, creating localized functional zones with different exposure levels.
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
Prevents heater damage from foreign substances, enhances heating efficiency, and reduces installation and operating costs by avoiding direct air contact and filter requirements.
Implementation Method 1
a heat generation electrode layer in which a conductive heat generation material having a predetermined resistance is printed on the outer surface of the housing to generate heat by electric power supplied from an outside
Implementation Method 2
a heater unit formed on an outer surface of the housing to transfer heat to the housing
Data Source
Figure 1~2
Figure 3
AI summary
The present invention relates to a heating module for an air circulation system, which is applied to a device for purifying and circulating air to instantaneously heat air flow along a circulation path so that the air can be used for heating. The present embodiment provides a heating module installed in an air circulation path of an air circulation system to heat circulating air, the heating module comprising: an upper housing and a lower housing which form a cylindrical shape and have a flow channel formed in the inner space thereof to allow air to flow therethrough; and a heater unit formed on the outer surface of the upper housing to transfer heat to the upper housing, wherein the heater unit includes: a heating plate which is in contact with the surface of the upper housing to dissipate heat to a predetermined area thereof; and a heat generation electrode layer having a conductive heat generation paste having a predetermined resistance, which is printed on the surface of the heating plate, to generate heat by electric power supplied from the outside.