Projector Light Source Cooling Ports with Rotating Shutter
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Solution Overview
Problem
Existing projector technologies face challenges in efficiently cooling the light source when installed in positions other than the standing or hanging position, as the cooling air may not reach the light source effectively, leading to inadequate heat dissipation.
Innovation Solution
A light source device with a rotating member that opens and closes introduction ports around a center shaft, ensuring cooling air is supplied to the light source in a consistent vertical direction regardless of the projector's position, using a light source housing with multiple introduction and outlet ports to facilitate efficient cooling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a fixed shutter mechanism is used for cooling the light source, then the cooling structure is simple, but the cooling efficiency deteriorates when the projector is installed in positions other than standing or hanging
Solution Approach 1:
The shutter mechanism is made rotatable around the optical axis to dynamically adjust the opening direction according to the projector's installation position. This allows the cooling air inlet to always face the correct direction regardless of whether the projector is mounted ceiling-down, wall-side, or in other orientations, thereby maintaining reliable cooling efficiency across all installation scenarios.
Solution Approach 2:
The rotating shutter mechanism enables the same cooling structure to function effectively across multiple installation positions (ceiling-mounted, wall-mounted, standing). By making the shutter rotatable, a single cooling system design can adapt to various orientations, eliminating the need for position-specific cooling configurations.
2Adaptability or versatility
If the projector is installed in positions other than standing or hanging, then the usage range is expanded, but the cooling air cannot reach the light source effectively
Solution Approach 1:
The shutter is designed to rotate around the optical axis based on the projector's installation position. This dynamic adjustment ensures that the cooling air inlet always opens in the correct direction relative to the light source, maintaining effective cooling whether the projector is ceiling-mounted, wall-mounted, or in other non-traditional positions.
Solution Approach 2:
The opening direction of the shutter is changed according to the installation position parameters. By adjusting the rotational angle of the shutter to match different mounting orientations, the system maintains optimal cooling effectiveness across various usage scenarios without compromising reliability.
3Productivity
If the outlet port is positioned above the light source, then cooling is efficient in standing position, but the cooling air flow becomes inadequate in other positions
Solution Approach 1:
The shutter mechanism dynamically repositions its opening based on the projector's installation orientation. This ensures that cooling air can always be supplied to the light source from the appropriate direction, whether the outlet port is positioned above, beside, or in other locations relative to the light source, thereby maintaining both cooling efficiency and position adaptability.
Solution Approach 2:
The opening direction parameter of the shutter is adjusted according to the relative position of the outlet port and the light source. This parameter change allows the cooling system to maintain effectiveness regardless of the outlet port's fixed position and the projector's variable installation orientation.
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 solution allows for stable and efficient cooling of the light source across various projector positions, including those rotated through 360 degrees, extending the projector's usage range and maintaining the light source's performance over time.
Implementation Method 1
a rotating member which selectively opens and closes the plural introduction ports by rotating around the center shaft in accordance with the position of the light source device
Implementation Method 2
The light source generates heat at the time of emission of light
Implementation Method 3
cooling air introduced through the opened introduction port can be discharged through the outlet port communicating with this introduction port, and supplied to the light source
Data Source
AI summary
A light source device includes a light source, a reflector that reflects light emitted from the light source, a light source housing accommodating the light source and the reflector and including a plurality of introduction ports through which cooling air is introduced, and a plurality of outlet ports communicating with the plural corresponding introduction ports, the outlet ports through which the introduced cooling air goes out, and an opening and closing device opening and closing the plural introduction ports. The plural introduction ports are disposed around a center shaft of the opening and closing device. The plural outlet ports are disposed along an opening of the reflector. The opening and closing device has a rotating member which rotates in accordance with the position of the light source device to selectively open and close the plural introduction ports.