Indoor Unit Assembly for Independent Fan and Heat Exchanger Cleaning
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Solution Overview
Problem
The existing indoor units for air conditioners have complex operations for dismounting the heat exchanger and fan, leading to potential breakdowns during maintenance and increased failure rates due to the need to disassemble and reassemble these components.
Innovation Solution
The design includes a detachable fan and heat exchanger system with positioning elements and elastic cantilevers to facilitate easy assembly and disassembly, allowing for independent cleaning of the fan wheel without affecting the heat exchanger, thus simplifying maintenance and reducing failure rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the heat exchanger and fan are mounted in a fixed integrated structure, then the structural stability is improved, but the ease of operation for maintenance and cleaning deteriorates
Solution Approach 1:
The indoor unit is divided into modular components: the heat exchanger assembly (including heat exchanger and supporting seat) can be detached from the base plate, and the fan assembly can be detached from the lower base plate. This segmentation allows each component to be independently maintained or cleaned without affecting the entire system, resolving the contradiction between structural stability and ease of operation.
2Ease of operation
If the heat exchanger is dismounted for fan wheel cleaning, then the ease of operation for cleaning is improved, but the reliability of the heat exchanger deteriorates due to repeated dismounting and mounting
Solution Approach 1:
The fan assembly is separated from the heat exchanger assembly through the detachable lower base plate design. The fan wheel can be cleaned by simply detaching the fan assembly from the lower base plate, while the heat exchanger remains mounted on the upper base plate and is not subjected to repeated dismounting and mounting operations, thus maintaining its reliability.
Solution Approach 2:
The fan assembly is extracted as an independent removable module from the overall system. By taking out the fan assembly through the detachable lower base plate, the cleaning operation can be performed on the fan wheel without involving the heat exchanger, thereby avoiding damage to the heat exchanger from repeated assembly and disassembly.
3Ease of repair
If the heat exchanger and fan are made detachable for easy maintenance, then the ease of repair is improved, but the device complexity increases
Solution Approach 1:
The indoor unit is segmented into modular assemblies (heat exchanger assembly, fan assembly, base plates) that can be independently detached and reattached. Simple positioning portions and elastic cantilevers provide automatic alignment and securing functions, reducing the complexity of the detaching and attaching operations while maintaining ease of repair.
Solution Approach 2:
The positioning portions and elastic cantilevers are designed to automatically guide and secure the heat exchanger and fan assemblies during attachment. The elastic cantilevers deform to accommodate the components and then restore to lock them in place, providing self-aligning and self-securing functions that simplify the repair process without requiring complex tools or procedures.
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 enhances maintenance efficiency by allowing for the independent cleaning of the fan and heat exchanger components, reducing the risk of damage during maintenance and lowering the failure rate of the indoor unit.
Implementation Method 1
an elastic cantilever is provided in the positioning mounting hole, and is configured to avoid the bent pipe structure when the heat exchanger core body is mounted and configured to be restored to position a corresponding bent pipe structure after the heat exchanger core body is mounted in place
Data Source
AI summary
An indoor unit of an air conditioner includes a housing, a fan and a heat exchanger. The housing includes an upper base plate provided with an air inlet, a lower base plate detachably mounted to the upper base plate, and a front cover detachably mounted to the upper base plate; the fan is detachably mounted to the lower base plate; and the heat exchanger is detachably mounted to the upper base plate, in which the heat exchanger includes a supporting seat and a heat exchanger core body mounted to the supporting seat. The upper base plate is provided with a first positioning portion; the supporting seat is provided with a second positioning portion; and the first positioning portion cooperates with the second positioning portion to position the heat exchanger core body on the upper base plate.