Universal Bulb Cap with Nested Adapter for Screw and Bayonet Fittings
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Solution Overview
Problem
The existing lighting solutions require bulbs with specific cap fittings and sizes to match the lamp holders, leading to inconvenience and potential errors in lighting setups, especially in industries where time is critical and precise lighting is necessary.
Innovation Solution
A bulb cap that can be selectively configured to fit different standard lamp holders, such as E27, E14, and B22, by adjusting its mount and collar positions, allowing it to function as either a screw or bayonet fitting, enabling compatibility with various lighting fixtures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a bulb cap is designed for a specific fitting type (e.g., E27, E14, B22), then it ensures reliable connection and proper electrical contact, but it requires multiple different bulb caps to fit different lamp holders, increasing complexity and potential for error
Solution Approach 1:
The bulb cap is designed with a universal structure that can accommodate multiple fitting types (E27, E14, B22) through a single cap design. The cap includes an adapter element with a first fitting portion and a second fitting portion, allowing it to interface with different lamp holder types without requiring multiple specialized caps, thus resolving the contradiction between reliability and versatility
Solution Approach 2:
The adapter element is nested within the bulb cap structure, with the first fitting portion and second fitting portion arranged in a nested configuration. This allows the bulb cap to contain multiple functional elements that enable compatibility with different fitting types while maintaining a compact, integrated structure
2Adaptability or versatility
If multiple bulb caps are kept for different fitting types, then compatibility with various lamp holders is ensured, but it increases the quantity of components needed and potential for selection errors
Solution Approach 1:
A single bulb cap design incorporates multiple fitting types through the adapter element, eliminating the need to stock and manage multiple different bulb cap types. The universal cap can be used across all standard lamp holders (E27, E14, B22), reducing the quantity of components from multiple specialized caps to just one universal cap
Solution Approach 2:
The adapter element merges the functionality of multiple different fitting adapters into a single integrated component. By combining the first fitting portion and second fitting portion in one adapter element within the bulb cap, the design consolidates what would otherwise require separate bulb caps for each fitting type
3Adaptability or versatility
If a universal adapter element is added to the bulb cap, then compatibility with multiple lamp holders is achieved, but the device complexity increases
Solution Approach 1:
The adapter element is nested within the bulb cap in a space-efficient configuration, with the first fitting portion and second fitting portion arranged to minimize overall complexity. This nested structure allows the universal functionality to be added without proportionally increasing the external dimensions or structural complexity of the bulb cap
Data Source
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AI summary
A lightbulb comprising a bulb portion (10) in which is housed an illuminating component configured to selectively emit visible light, the lightbulb having a cap portion (16) configured to mount the lightbulb in a light fitting or lamp holder, the cap portion incorporating a adaptor element configured to selectively alter the configuration of the cap portion between a screw fitting and a bayonet fitting.