Recessed Spotlight Capping Device with Bayonet Locking Mechanism
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Solution Overview
Problem
Existing recessed spotlight capping devices require disassembly for lamp replacement, leading to potential alterations in tightness and increased complexity in maintaining thermal insulation, as they necessitate movement above the ceiling for installation and electrical connections.
Innovation Solution
A recessed spotlight capping device with a base having an annular shape and a capping element featuring a bayonet locking mechanism, allowing for removable fixing and improved sealing, enabling easier maintenance and reduced thermal bridging by allowing access from below, thus simplifying electrical connections and reducing the need for full disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the capping device is made as a single integrated unit, then the structure is simpler and easier to manufacture, but the maintenance and lamp replacement require full disassembly which alters sealing integrity
Solution Approach 1:
The capping device is divided into separate functional components: a base element fixed to the ceiling and a capping element that can be removed and reinstalled. This segmentation allows the base to remain fixed and maintain sealing while the capping element can be independently accessed for maintenance, resolving the contradiction between manufacturing simplicity and repair ease.
2Ease of operation
If the capping device requires movement from above the ceiling for installation, then the installation process is simpler, but the electrical connections become more complex and require ceiling access
Solution Approach 1:
The invention introduces a lateral access dimension by providing openings in the base element that allow electrical connections to be made from the side rather than from above the ceiling. This dimensional change simplifies electrical work while maintaining simple installation procedures.
3Loss of energy
If the capping device is fully assembled and sealed, then thermal insulation is improved, but access for maintenance requires full disassembly which compromises sealing
Solution Approach 1:
The separation of the base element and capping element allows the base to maintain permanent sealing and thermal insulation while the capping element can be independently removed for maintenance. This resolves the contradiction by maintaining the seal integrity of the fixed portion while enabling access to the removable portion.
Solution Approach 2:
The base element acts as an intermediary that provides both sealing functionality and access pathways. It maintains the thermal seal while incorporating openings that allow electrical connections and maintenance access without compromising the overall sealing integrity.
4Reliability
If the base element includes multiple receiving elements and locking mechanisms, then the fixing reliability is improved, but the device complexity increases
Solution Approach 1:
The locking mechanism is segmented into complementary parts: receiving elements in the base and corresponding protrusions on the capping element. This segmentation distributes the locking function across multiple simple interaction points rather than requiring a single complex mechanism, improving reliability while controlling complexity.
Data Source
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AI summary
The invention relates to a capping device (1) for a recessed spotlight, intended to be installed in a wall (60), comprising: - a base having an internal surface, an external surface, a thickness and an opening through the entire thickness; and - a capping element (20) suitable for capping a spotlight comprising an upper part (26) and at least one lateral part (24), said lateral part (24) having an upper end (25) in contact with the upper part and a lower end (22) being removably fixed to the internal surface of the base (10), characterized in that in the mounting position, the external surface is in contact with the wall.