Flexible Substrate Lamp with Connecting Strips for Heat Dissipation
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Solution Overview
Problem
Existing lamps with flexible circuit substrates are prone to tilting, leading to elevated temperatures and a shortened service life due to inadequate heat dissipation and structural support.
Innovation Solution
A lamp design featuring a heat dissipation base with a heat dissipation column and flexible substrate, where connecting strips from the top plate abut against the heat dissipation column and are wrapped inside the side plate, along with a thermal conductive sleeve for enhanced heat dissipation, preventing the flexible substrate from tilting and reducing temperature-related issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a flexible circuit substrate is used to arrange light sources, then the lamp structure becomes more flexible and adaptable, but the substrate is easily tilted which causes the temperature of the light source to be too high and affects service life
Solution Approach 1:
The flexible substrate is divided into multiple plates (first plate, second plate, third plate) that are connected through connecting strips. This segmentation allows each plate to be positioned and secured independently, preventing tilting while maintaining overall flexibility. The connecting strips act as separate structural elements that provide support without rigidifying the entire substrate.
Solution Approach 2:
Connecting strips are introduced as intermediary elements between the flexible substrate plates and the heat dissipation column. These connecting strips serve as mediators that provide structural support and prevent tilting, while still allowing the substrate to maintain its flexible nature for adapting to the heat dissipation column's surface.
2Stability of the object's composition
If the flexible substrate is tilted, then the structure may accommodate irregular surfaces, but the temperature of the light source becomes too high due to inadequate heat dissipation
Solution Approach 1:
The connecting strips are pre-positioned to extend from the heat dissipation column before the substrate plates are fully assembled. This preliminary positioning ensures that the substrate is secured in the correct orientation before operation, preventing tilting that would compromise heat dissipation. The adhesive layer is also applied in advance to ensure proper bonding.
Solution Approach 2:
The patent replaces rigid mechanical support structures with an adhesive bonding system. The adhesive layer provides continuous contact and bonding between the substrate and heat dissipation column, ensuring stable thermal contact without requiring rigid mechanical fixtures that would reduce flexibility.
3Reliability
If connecting strips are added to prevent tilting, then the service life is extended, but the device complexity increases
Solution Approach 1:
The connecting strips serve multiple functions simultaneously: they provide structural support to prevent tilting, maintain electrical connectivity between substrate plates, and facilitate thermal conduction from the heat dissipation column. This merging of functions reduces the need for separate components, thereby limiting the increase in device complexity.
Solution Approach 2:
The connecting strips are designed as multi-functional elements that combine mechanical support, electrical connection, and thermal conduction properties. This universality allows a single component to address multiple requirements, preventing the need for additional specialized parts and thus limiting complexity increases.
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 effectively prevents the flexible substrate from tilting, thereby maintaining lower temperatures for the lamp beads and extending the lamp's service life through improved heat dissipation and structural stability.
Implementation Method 1
a thermal conductive sleeve sleeved outside the heat dissipation column
Implementation Method 2
a back surface of the flexible layer is provided with an adhesive layer; and the adhesive layer is attached to the heat dissipation column for fixation
Data Source
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AI summary
A lamp, comprising: a heat dissipation base (10), a light source assembly (20), and a lampshade (30); wherein the heat dissipation base (10) comprises: a heat dissipation column (12) arranged on a base (11); the light source assembly (20) comprises: lamp beads (22), and a power driven module (23) both arranged on a flexible substrate (21); the flexible substrate (21) comprises: a side plate (211) wrapping outside a sidewall of the heat dissipation column (12), and a top plate (212) connected to the side plate (211) and covering a top of the heat dissipation column (12); the lamp beads (22) are arranged on the side plate (211) and the top plate (212), respectively; and connecting strips (213) extend from a periphery of the top plate (212), and the connecting strips (213) abut against an outer side of the heat dissipation column (12) and are wrapped inside the side plate (211).