Air Purifier Discharge Device with Variable Area and Direction Control
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Solution Overview
Problem
Conventional air purifiers lack the ability to discharge purified air in various directions and adjust the area for air discharge, limiting their flexibility and efficiency in different environmental conditions.
Innovation Solution
An air purifier with a discharge device that includes a movable second case and an opening and closing member, controlled by sensors and a controller, which adjusts the air discharging area based on temperature, illuminance, current consumption, carbon dioxide levels, smoke concentration, pressure, and dust levels to optimize air discharge direction and volume.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the air purifier uses a fixed discharge opening, then the structure is simple, but the air discharge direction and area cannot be adjusted
Solution Approach 1:
The discharge device incorporates movable cases (second case and third case) that can change position relative to fixed cases, enabling the discharge opening to dynamically adjust its orientation and the discharge portion to expose different areas. This dynamic structure allows the air purifier to discharge air in various directions and with adjustable area, resolving the contradiction between adaptability and structural simplicity.
2Productivity
If the air purifier discharges air through a large opening, then the air discharge volume is high, but noise and discomfort increase
Solution Approach 1:
The discharge device segments the discharge function into multiple paths: a discharge opening for high-volume air discharge and a discharge portion with multiple discharge holes for low-noise operation. The controller can selectively activate these paths based on operational requirements, enabling high productivity when needed while minimizing noise and discomfort during normal operation.
Solution Approach 2:
The system changes the discharge parameters by adjusting which discharge path is active. The discharge opening provides large-area high-volume discharge, while the discharge portion with multiple small holes provides distributed low-velocity discharge. This parameter change allows the system to optimize between air discharge volume and noise/discomfort levels.
3Productivity
If the air purifier operates at high power, then the air purification efficiency is high, but energy consumption increases
Solution Approach 1:
The discharge device dynamically adjusts its configuration based on operational needs. During high purification efficiency modes, the system can utilize the discharge opening for rapid air turnover. During lower priority modes, it switches to the discharge portion with multiple holes, reducing energy consumption while maintaining acceptable performance. This dynamic adjustment resolves the contradiction between productivity and energy consumption.
Data Source
AI summary
An air purifier includes a main body having an inlet and a discharge device mounted on the main body and configured to receive air introduced into the main body through the inlet and discharge the air from the air purifier, wherein the discharge device includes a discharge opening, an opening and closing member including a portion having a size and shape corresponding to the discharge opening, and configured to move out of the discharge opening and into the discharge opening to open and close the discharge opening, and a discharge portion including a plurality of discharge holes, wherein each discharge hole of the plurality of discharge holes has a size smaller than a size of the discharge opening, and wherein the discharge portion has an air discharging area that is variable.