LED Light Strip With Parallel Protective Circuit
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Solution Overview
Problem
Existing LED light strips have structural issues such as thickness, ease of short-circuiting, complex production processes, air bubbles affecting appearance, and the need for frequent replacement due to damaged LED light sources.
Innovation Solution
An LED light strip design featuring a flexible protective sleeve with a soft light board composed of insulating films and LED light sources, a protective circuit for maintaining operation in case of damage, and a transparent baffle and stripe grooves to prevent air bubbles and enhance aesthetics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the soft light board is made wide to accommodate LED light sources, then the light board can hold more LED components, but the light body becomes thick and unfavorable to bend
Solution Approach 1:
The patent transitions from a planar soft light board to a three-dimensional hollow spherical structure. LED light sources are arranged on the spherical surface rather than being confined to a flat plane, allowing more LEDs to be accommodated without increasing linear dimensions. The spherical geometry provides volumetric space while maintaining a compact form factor that remains flexible and bendable.
Solution Approach 2:
The soft light board is embedded within a hollow flexible protective sleeve, creating a nested structure where the light board occupies the internal cavity. This nesting approach allows the light board to be contained within a flexible outer shell, maintaining flexibility while providing structural support for multiple LED components.
2Reliability
If the accommodation chamber dimension is the same as or slightly smaller than the soft light board to prevent detachment, then the soft light board is securely held, but air bubbles form between the bottom surfaces affecting appearance
Solution Approach 1:
The bottom surface of the accommodation chamber is segmented into multiple regions: a first bottom surface that contacts the soft light board, a second bottom surface that forms the outer boundary, and lateral surfaces connecting them. This segmentation creates a controlled cavity space that allows air to be trapped in a defined region away from the visible exterior, preventing air bubbles from affecting the appearance while maintaining secure attachment.
Solution Approach 2:
The lateral surface of the accommodation chamber acts as an intermediary structure between the first and second bottom surfaces. This intermediate surface creates a transition zone that manages the air cavity, allowing air to be contained in a controlled space rather than forming visible bubbles on the exterior surface.
3Device complexity
If all LED light sources are arranged in series on the soft light board, then the circuit is simple to construct, but if one or some LED light sources are damaged, the entire LED light strip fails and needs replacement
Solution Approach 1:
The circuit is segmented into multiple independent groups, with each group containing one or more LED light sources. These groups are connected in parallel rather than in series, allowing individual groups to operate independently. When one group fails due to damaged LED light sources, other groups continue to function, extending the overall service life of the light strip.
Solution Approach 2:
The patent enables selective replacement of damaged LED light source groups while retaining functional groups. Instead of replacing the entire light strip when one LED fails, users can replace only the affected group, recovering the value of the remaining functional LEDs and reducing maintenance costs.
Data Source
AI summary
The present invention relates to the field of LED light strip. This invention provides an LED light strip, which includes a flexible protective sleeve and a soft light board, at least one protective circuit being arranged on the soft light board. The soft light board includes in sequence a first insulating soft film, an LED light source and a second insulating soft film. The protective circuit is provided with a zener diode or a voltage stabilizing unit which is connected in parallel with the at least LED light source and which maintains the electrical circuit to be on to keep the soft light board in operation when the LED light source is disconnected. When one or some of the LED light sources is/are damaged, the protective circuit conducts electricity in place of the damaged LED light sources, the LED light strip can continue to be energized and emit light.