Indoor AC Dust Transfer Using Fan Airflow Instead of Suction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing air conditioner systems with dust removal units require a vacuum suction fan to transfer dust from the indoor unit to the outdoor unit, increasing costs and apparatus size, and are not economically viable due to infrequent dust disposal.
Innovation Solution
An indoor air conditioner unit with a dust transfer unit that uses air blowing from the indoor fan to transfer dust from the air filter to a predetermined location, eliminating the need for a vacuum suction fan and reducing apparatus size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a vacuum suction fan is used to transfer dust from the indoor unit to the outdoor unit, then dust transfer capability is improved, but the cost and apparatus size increase
Solution Approach 1:
The indoor fan, originally designed for air circulation and cooling functions, is made multi-functional by utilizing it for dust transfer as well. The fan operates in a dust discharge mode where it creates positive pressure to blow dust through a discharge port to the outdoor unit, eliminating the need for a separate vacuum suction fan while maintaining dust transfer capability
Solution Approach 2:
The dust transfer function is extracted from the required components by using the existing indoor fan's air blowing capability instead of adding a vacuum suction fan. The dust discharge port and control mechanism are the only additional components needed, significantly reducing the apparatus size compared to the conventional approach
2Extent of automation
If a vacuum suction fan is installed for dust transfer, then dust disposal function is improved, but the cost increases
Solution Approach 1:
The indoor fan serves multiple functions including air circulation, cooling, and dust discharge. By controlling the fan's rotation direction and speed, the system achieves automated dust disposal without requiring an additional vacuum suction fan, thereby reducing manufacturing costs while maintaining automated dust transfer capability
Solution Approach 2:
The system uses its own existing resources (indoor fan and air flow) to perform the dust transfer function that would otherwise require separate dedicated equipment. The indoor unit's fan creates positive pressure to self-propel dust through the discharge port, making the system self-sufficient and eliminating the need for external vacuum equipment
3Reliability
If the indoor unit size is increased to accommodate dust transfer mechanisms, then dust transfer capability is improved, but the installation space requirement increases
Solution Approach 1:
The indoor fan is designed to perform both air circulation and dust discharge functions. By controlling the fan's rotation direction, the same component serves dual purposes, eliminating the need for additional space-consuming vacuum suction fans and maintaining compact indoor unit dimensions
Solution Approach 2:
The indoor fan's rotation direction is dynamically controlled to switch between normal air circulation mode and dust discharge mode. This dynamic control allows the same physical space and component to serve different functions at different times, maximizing space utilization and avoiding the need for increased apparatus size
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 allows for efficient and cost-effective dust disposal without upsizing the unit, improving user convenience, especially for elderly and female users, by using existing air flow to transfer dust, thus reducing labor and operational costs.
Implementation Method 1
a dust transfer unit (70) for transferring the dust removed by the dust removing unit (50) to a predetermined location using air blowing from the indoor fan (39)
Data Source
AI summary
A casing (34) contains a rotating brush (151) for removing dust on an air filter (40), and a dust container (160) for containing the removed dust. A supply duct (71) through which air blowing from an indoor fan (39) enters the dust container (160), and a discharge duct (74) through which the dust contained in the dust container (160) is discharged out of the casing (34) together with the air are provided.