Separable Turbo Blower Enclosure with Segmented Airflow
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Solution Overview
Problem
Conventional outer enclosures for turbo blowers often use a single air flow path for both intake and cooling, leading to increased impeller air temperature, reduced performance, and poor cooling efficiency, especially in high-temperature or poor air quality conditions, and fail to effectively separate noise and cooling air streams.
Innovation Solution
The outer enclosure separates air flowing into the turbo blower from cooling air by incorporating a housing with distinct chambers for outside air inflow, inverter, motor, and refrigerant inflow, using partition walls and a refrigerant injector to ensure efficient cooling and noise reduction, allowing for separate intake and cooling air streams and enabling the use of a refrigerant for cooling even in poor air quality conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single common flow path is used for both turbo blower intake and cooling air intake, then the device complexity is reduced, but the cooling efficiency deteriorates and turbo blower performance decreases
Solution Approach 1:
The enclosure interior is divided into separate chambers: a first chamber for turbo blower air intake and a second chamber for cooling air intake. Partition walls with specific openings create independent flow paths, preventing mixing of cooling air with turbo blower intake air and ensuring dedicated cooling airflow for motor and inverter components.
2Device complexity
If cooling air is drawn through the same path as turbo blower intake, then the device complexity is reduced, but the turbo blower performance deteriorates due to increased impeller air temperature
Solution Approach 1:
The enclosure is segmented into distinct airflow zones using partition walls. The first chamber handles turbo blower intake separately from the second chamber that handles cooling air intake, ensuring that cooled air does not mix with the air entering the turbo blower impeller, thus maintaining impeller air temperature control and turbo blower performance.
3Device complexity
If a single common flow path is used for cooling, then the device complexity is reduced, but the cooling efficiency is lowered in high-temperature or poor air quality conditions
Solution Approach 1:
Separate chambers with independent airflow paths allow dedicated cooling airflow that is not contaminated by turbo blower intake air. The partition walls with strategically positioned openings ensure that cooling air can efficiently reach motor and inverter components without mixing with potentially warmer or poorer quality air from the turbo blower intake side.
4Object-generated harmful factors
If noise reduction materials are added to enclosure walls, then the noise level decreases, but the device complexity and manufacturing cost increase
Solution Approach 1:
The noise reduction function is extracted and concentrated into a specific sound absorption partition wall within the first chamber, rather than uniformly applying materials throughout the entire enclosure. This targeted approach places absorbing material only where noise generation occurs (near the turbo blower intake), reducing overall complexity while maintaining noise control effectiveness.
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 configuration enables more efficient cooling, maintains turbo blower performance, reduces noise below 75 dBm, prevents contamination, and allows for easy assembly and reinstallation by separating components, while effectively managing odor gases and ensuring continuous operation in high-temperature environments.
Implementation Method 1
using partition walls and a refrigerant injector to ensure efficient cooling
Implementation Method 2
a sound absorption partition wall which is positioned in an outside air inflow chamber configured to change the flow path of the outside air that gets sucked into the enclosure
Data Source
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AI summary
Provided is an outer enclosure for a turbo blower in which a turbo blower is installed, which includes a housing forming an exterior of the outer enclosure, an outside air inflow chamber which is a space partitioned in one side inside the housing and which communicates with the outside through an outside air inlet, an inverter chamber which is a space partitioned in the other side inside the housing, a motor chamber which is a space partitioned in an upper portion of a space positioned between an inverter chamber and the outside air inflow chamber, and in which a turbo blower including an intake nozzle communicating with the outside air inflow chamber is positioned, and a first refrigerant discharge port is positioned on one side, a refrigerant inflow chamber which is a space in a lower portion of the motor chamber and which communicates with the outside through a refrigerant inlet, in which the upper and lower portions of the inverter chamber are in communication with the motor chamber and the refrigerant inflow chamber, respectively, and the refrigerant inflow chamber is communication with the motor chamber.