Ring-Shaped Air Cleaner Channel Switching for Compact Air Distribution
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Solution Overview
Problem
Conventional air cleaners with rectangular cross-sectional channels for channel switching members face limitations in discharge port shape and housing design, requiring substantial space due to the large distance between the channel switching member and discharge ports, and lack the ability to instantly control air distribution between multiple discharge ports.
Innovation Solution
An air cleaner with a ring-shaped air channel and a channel switching member that includes an elevating member and an opening/closing member, allowing air to be selectively directed through first and second discharge ports by moving the elevating member up and down and sliding the opening/closing member radially, reducing space occupation and enabling instant adjustment of air distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a channel switching member rotates about a horizontal shaft to open and close rectangular channels, then air flow to discharge ports can be controlled, but the distance between the discharge port and channel switching member becomes large, requiring substantial space
Solution Approach 1:
The patent changes the rotation axis from horizontal to vertical direction, and transforms the rectangular channel cross-section to a ring-shaped channel cross-section. This dimensional change allows the channel switching member to be positioned closer to the discharge port while maintaining effective air flow control, thereby reducing the space occupied.
Solution Approach 2:
The patent employs a ring-shaped channel cross-section instead of a rectangular one. The curved, circular geometry of the ring-shaped channel allows for more compact arrangement around the vertical rotation axis, enabling shorter distance between the channel switching member and discharge port while maintaining structural integrity and flow control effectiveness.
2Ease of operation
If a rectangular cross-sectional channel is used, then the channel switching member can rotate to control air flow, but the shape of the discharge port and housing design are limited
Solution Approach 1:
The ring-shaped channel cross-section provides universal adaptability for various discharge port configurations. The circular geometry can accommodate different numbers and arrangements of discharge ports (e.g., multiple ports around the ring), enabling the same channel switching mechanism to serve multiple discharge configurations without structural modification.
Solution Approach 2:
By transitioning from rectangular to ring-shaped channels, the patent enables discharge ports to be arranged in circular patterns around the vertical axis, providing greater design flexibility for housing shapes and discharge port configurations compared to the linear arrangement constrained by rectangular channels.
3Adaptability or versatility
If the channel switching member rotates over approximately 180 degrees, then air can be directed to different ports, but the large distance between components requires substantial installation space
Solution Approach 1:
The vertical rotation axis allows the channel switching member to sweep through different angular positions in a compact vertical space, directing air to multiple discharge ports arranged around the circumference. This reduces the horizontal installation footprint compared to horizontal rotation requiring large lateral clearance for 180-degree movement.
Data Source
AI summary
Disclosed is an air cleaner comprising: a housing (H); an air-purifying filter (20); a blowing unit (30); and a channel switching member (200) for switching a discharge channel such that air supplied from the blowing unit (30) flows to at least one of a first discharge port (A51) to discharge air in a first direction and the second discharge port (A52) to discharge air in a second direction. The channel switching member (200) comprises: an elevating member (210) having a first communication unit (216) that is open such that air flows to a first discharge port-side channel (A3), and having a blocking unit (215) for blocking a flow thereof to a second discharge port-side channel (A4); and an opening/closing member (220). The first discharge port-side channel (A3) and the second discharge port-side channel (A4) are opened/closed by ascending/descending of the elevating member (210) and moving of the opening/closing member (220).