Concealed Rotary Fan Mechanism for Wider Air Outlet Coverage
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Solution Overview
Problem
Current rotary fans face limitations in expanding outlet area vertically, requiring more space and reducing applicability, and suffer from reduced air supply efficiency due to oblique planes impeding air currents, while manual direction changes pose safety risks.
Innovation Solution
A concealed rotary fan design that couples the drive motor with the rotary vane to enable axial and oblique rotation, automatically changing outlet direction along a circular path, using thin levers to minimize wind resistance and reduce the need for manual adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If oscillating motion is used to change outlet direction, then the fan can adjust wind direction, but the outlet area cannot be expanded vertically and the fan requires greater volume and space
Solution Approach 1:
The patent applies dynamics by enabling the rotary vane to rotate around a vertical axis in addition to its horizontal oscillation, creating a concealed rotary mechanism that dynamically adjusts the outlet direction along a circular path. This dynamic rotation capability allows the fan to cover a wider vertical outlet area without increasing the overall fan volume, as the rotary vane itself performs the directional adjustment rather than requiring a larger housing or support structure.
2Adaptability or versatility
If guide cage with inclined plates is used to change outlet direction, then the fan can redirect air flow, but the oblique plane impedes air current and reduces air supply effect
Solution Approach 1:
The patent extracts and removes the guide cage with inclined plates from the system, replacing it with a concealed rotary mechanism. By taking out the harmful inclined plates that impede air current, the invention allows air to flow more freely while still achieving outlet direction control through the rotational movement of the rotary vane around the vertical axis, thus maintaining air supply effectiveness.
3Device complexity
If manual direction change is required for industrial rotary fans, then the structure can be simpler, but safety issues arise from sharp rotary vane exposure
Solution Approach 1:
The patent applies self-service by implementing an automated concealed rotary mechanism that automatically adjusts the outlet direction without requiring manual intervention. The drive motor directly couples with the rotary vane to enable automatic rotation around the vertical axis, allowing the system to serve itself in terms of direction control. This eliminates the need for operators to manually handle or adjust the sharp rotary vane, thereby resolving the safety issue while maintaining operational simplicity.
4Device complexity
If oscillating fan design is used, then the pivot point structure is simpler, but the rotary vane shifts extensively around the lower rear pivot point requiring greater space
Solution Approach 1:
The patent applies dimensionality change by introducing a vertical axis of rotation, transforming the traditional horizontal oscillation into a three-dimensional concealed rotary motion. The rotary vane now rotates around a vertical axis passing through or near the drive motor, creating a compact circular path for outlet direction adjustment. This dimensional shift from horizontal plane oscillation to vertical axis rotation significantly reduces the space required, as the rotary vane no longer needs to shift extensively around a lower rear pivot point but instead rotates in a confined circular area.
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 design enhances multidirectional air supply performance, reduces space requirements, and improves safety by automating direction changes, minimizing the risk of injury and optimizing air flow.
Implementation Method 1
the rotary fan A allows the drive motor 30 to be coupled with the rotary vane 20, making it possible to rotate axially and obliquely. The outlet direction is also automatically changed. Moreover, the outlet direction may vary uniquely along a circular path
Implementation Method 2
the casing is made of thin levers to minimize wind resistance. As the inclined surface construction of the inclined plate will lead to impediment of air current, the rotary fan of the present invention resolves the problem by greatly improving the air supply performance
Data Source
AI summary
The concealed rotary fan includes a rotary vane, a drive motor and a base. The drive motor is assembled into the base. The first end of the drive motor with the revolving shaft can be assembled onto a front support in a rotary state. The second end of the drive motor is fitted with a crank link, the first end of which can be driven to make the second end rotate. The second end is screwed onto a pivot point on to the base. When the revolving shaft of the drive motor rotates, the second end of the crank link will rotate synchronously, enabling the drive motor and revolving shaft to rotate axially and obliquely along with the rotary vane. Thus, the rotary fan allows automatic change of the outlet direction through the axial rotation of the rotary vane, the outlet area being expanded to improve the actual applicability.