Vehicle Air Conditioner Blowing Device Wide Angle Design
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Solution Overview
Problem
Conventional air conditioner blowing devices have limitations in achieving a wide blowing angle, which restricts the effective distribution of air within a vehicle compartment.
Innovation Solution
The proposed blowing device incorporates a casing with an inclined portion, an intermediate portion, a wind direction variable member, and a cover member with hole portions, which accelerates the flow velocity of wind, allowing it to be blown out over a wider angle by enhancing the directivity of the airflow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a conventional blowing device with only a wind direction variable member is used, then the structure is simple, but the blowing angle of the wind is limited
Solution Approach 1:
The blowing device is segmented into multiple functional components: a wind direction variable member for directional control, an inclined portion for wind redirection, and a cover member with hole portions for vortex generation. Each segment performs a specific function that collectively achieves a wide blowing angle without excessive overall complexity.
Solution Approach 2:
The inclined portion redirects wind from a single-direction flow to a multi-directional flow by utilizing an inclined surface. This dimensional transformation of airflow path enables the wind to be blown in multiple directions simultaneously, increasing the blowing angle beyond what a simple directional variable member can achieve.
2Adaptability or versatility
If an inclined portion is added to increase the blowing angle, then the wind direction control is improved, but the device complexity increases
Solution Approach 1:
The cover member integrates multiple functions: it covers the outlet, provides structural support, and creates vortex flow through its hole portions. By merging these functions into a single component rather than adding separate elements, the device achieves enhanced blowing angle control without proportionally increasing complexity.
Solution Approach 2:
The cover member incorporates hole portions that allow selective airflow passage. This porous structure enables vortex generation and wind acceleration while maintaining a relatively simple overall component design, avoiding the need for complex mechanical systems to achieve the same effect.
3Speed
If the cover member with hole portions is added to accelerate wind flow, then the blowing angle increases, but the manufacturing complexity increases
Solution Approach 1:
The hole portions in the cover member are designed with specific parameters (size, shape, arrangement) that optimize vortex generation and wind acceleration. By carefully selecting these geometric parameters, the device achieves enhanced blowing performance through a relatively simple manufactured component rather than complex mechanical systems.
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 configuration increases the blowing angle of air, enabling more efficient air distribution within the vehicle compartment, improving both the effectiveness and design of the blowing device.
Implementation Method 1
The wind flows along the inside of the cover member and accelerates a flow velocity of a vortex inside the casing
Data Source
AI summary
A blowing device includes: a casing which is connected to an air conditioner of a vehicle; a ventilation path which is formed from an inlet to an outlet of the casing; a second inclined portion which is provided on the side of the outlet in the casing; an intermediate portion which is formed between the inlet and the second inclined portion; a wind direction variable member that is provided in the ventilation path and is able to change a wind direction of an inflow wind through the inlet toward the intermediate portion or the outlet; and a cover member that is provided with a hole portion penetrating therethrough in an X direction and the cover member is disposed in the +X direction in relation to an end portion of the second inclined portion in the −X direction.