Projector Air Filter Sliding Cover for Ceiling Maintenance
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Solution Overview
Problem
The existing projector-type display apparatuses, such as liquid crystal and CRT projectors, face difficulties in maintaining the air filter due to its screwed cap structure, which makes it hard to attach and detach, especially when the projector is hung on a ceiling, leading to dust accumulation and airflow issues.
Innovation Solution
A projector-type display apparatus design featuring a sliding assembly of the air-filter and filter-cover, which allows easy attachment and detachment, even when the projector is mounted vertically, with a filter-cover that blocks dust from entering the air-filter and includes a dust catcher to prevent dust from falling into the air-inlet-port during maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the filter-cover is screwed and fixed onto the housing, then the filter is securely attached, but it becomes difficult to attach and detach the filter for maintenance
Solution Approach 1:
The filter assembly is segmented into two main components: the filter-cover (cap) and the air-filter element. This segmentation allows the filter element to be easily replaced without removing the entire cap assembly, improving maintenance ease while maintaining secure attachment through the cap structure
Solution Approach 2:
The filter-cover is designed with a sliding mechanism that allows dynamic attachment and detachment. The cap can slide along the housing to secure or release the filter, providing both secure attachment when closed and easy removal when opened, resolving the contradiction between reliability and ease of operation
2Adaptability or versatility
If the projector is hung on a ceiling, then space is saved, but it becomes more difficult to attach and detach the filter
Solution Approach 1:
The sliding mechanism allows the filter-cover to be opened from the front, providing easy access to the filter element even when the projector is mounted on the ceiling. This dynamic opening mechanism eliminates the need for complex disassembly operations in difficult-to-reach locations
Solution Approach 2:
The filter element is extracted as a separate, easily removable component from the filter assembly. This allows users to access and replace the filter element by simply opening the sliding cap, making maintenance feasible even when the projector is ceiling-mounted and difficult to reach
3Ease of repair
If the filter is detached from the housing, then the filter can be cleaned or replaced, but dust may float up and flow into the air-inlet-port
Solution Approach 1:
The filter-cover is designed to cover and protect the air-inlet-port and filter assembly before dust can accumulate or enter. When the cover is in place, it prevents dust from entering the housing, and when opened for maintenance, the structure allows controlled access that minimizes dust disturbance
Solution Approach 2:
The filter-cover structure serves dual purposes: it protects the air-inlet-port from dust contamination during normal operation, and provides a controlled access mechanism for filter maintenance. The same cover that prevents dust entry also facilitates easy filter replacement, converting a potential harm (dust accumulation) into a benefit (protected access mechanism)
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 ease and prevents dust accumulation on the air-filter, ensuring consistent airflow and reducing the frequency of filter replacements, even when the projector is mounted on a ceiling or wall.
Implementation Method 1
The air-filter is attachable to and detachable from the housing, and covers the air-inlet-port
Implementation Method 2
Air from the air-inlet-port flows into an air-intake fan. The intake air flows into the housing, and cools down the components
Implementation Method 3
The filter-cover may include a top plate part facing the air-filter, a side wall part that blocks air from flowing into a space between the top plate part and the air-filter
Data Source
AI summary
[Object] To provide a projector-type display apparatus with ease of maintenance.[Solving Means] According to the present technology, a projector-type display apparatus includes an optical-system-for-projecting, a housing, a fan, an air-filter, and a filter-cover. The housing includes an air-inlet-port, and houses the optical-system-for-projecting. The fan is housed in the housing, air from the air-inlet-port flowing into the fan. The air-filter is attachable to and detachable from the housing, and covers the air-inlet-port. The filter-cover is attachable to and detachable from the air-filter.