Candle Lamp Base Latching Structure for Stable Assembly

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Solution Overview

Problem

Existing candle lamps suffer from unstable connections due to potential fracture of the protruding post or detachment of adhesive, which affects their operational lifespan.

Innovation Solution

A candle lamp design featuring a groove on one wall of the receiving cavity and a latching tab on the other, securing the base to the lamp body through engagement, along with a power driver board that moves synchronously to ensure a stable connection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a protruding post and recess structure with adhesive is used to connect the base and lamp body, then the assembly is simple to manufacture, but the connection stability deteriorates due to potential fracture or detachment over time

Engineering Contradiction:

Improveassembly simplicityVSAvoidconnection stability

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The connection structure is divided into multiple functional elements: a groove formed on the receiving cavity wall and a corresponding latching tab on the base. This segmentation allows the connection to be distributed across multiple engagement points rather than relying on a single post or adhesive bond, improving overall reliability while maintaining manufacturing simplicity

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The groove and latching tab are pre-formed as integral parts of the receiving cavity and base respectively during the molding process. This preliminary action ensures that the connection features are already in place before assembly, eliminating the need for separate fastening operations while providing a reliable mechanical interlock that prevents both fracture and detachment

Inventive Principle:

Principle #10Preliminary action

2Stability of the object's composition

If adhesive is used to fix the base and lamp body, then the connection is initially stable, but the operational lifespan deteriorates due to adhesive detachment over time

Engineering Contradiction:

Improveinitial connection stabilityVSAvoidoperational lifespan

Core Design Contradiction:

Stability of the object's compositionVSDuration of action of stationary object

Solution Approach 1:

The adhesive bonding system is replaced with a mechanical interlocking system consisting of a groove and a latching tab. The latching tab engages with the groove to provide a mechanical constraint that maintains connection stability throughout the operational lifespan, eliminating the degradation issues associated with adhesive aging and detachment

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS12546446B2Candle lamp

Publication Date: 2026.02.10 RUAN XIN

AI summary

The present disclosure provides a candle lamp (10). The candle lamp (10) comprises a lamp body (100), a wick (200), a base (310), and a power driver board (320). The wick (200) and the base (310) are disposed at opposite ends of the lamp body (100) along a longitudinal direction thereof. The power driver board (320), together with the base (310), is secured to a bottom portion of the lamp body (100). This configuration of the candle lamp (10) provides a stable connection, preventing unintended detachment of the base (310) and the power driver board (320) from the lamp body (100).