Removable Resistor Unit for LED String Voltage Regulation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional LED light strings connected in series become inoperable if an LED is removed, and those connected in parallel require difficult and destructive resistor welding, leading to voltage regulation issues and potential LED damage.
Innovation Solution
An LED light string design featuring external, removably connected resistors between LEDs in series, allowing for easy replacement and maintaining constant voltage across loops, with resistors integrated into connecting wires and housed in protective casings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If LEDs are connected in series, then the light string can operate with simple circuit structure, but the entire series becomes inoperable when an LED is removed
Solution Approach 1:
The patent divides the LED string into multiple parallel groups, where each group contains series-connected LEDs. This segmentation means that if one LED fails or is removed from a particular group, only that group is affected, not the entire string. Each parallel group operates independently, maintaining overall system reliability while keeping individual group circuitry simple.
2Reliability
If LEDs are connected in parallel, then individual LEDs can be replaced without affecting the whole string, but resistor welding becomes difficult and destructive
Solution Approach 1:
The patent extracts the resistor from the LED assembly and places it externally in the circuit. Instead of welding resistors directly to LEDs during manufacturing, the resistor is positioned separately and connected through external wire leads. This extraction eliminates the need for destructive welding operations while maintaining the regulating function, and allows for easy replacement of resistors without affecting the LEDs.
3Stability of the object's composition
If a regulating resistor is firmly welded in the string, then the circuit is stable, but the resistor cannot be replaced when voltage requirements change
Solution Approach 1:
The patent transforms the static, fixed resistor connection into a dynamic, replaceable configuration. The resistor is connected through external wire leads that can be easily disconnected and reconnected, allowing the resistor value to be changed according to different voltage requirements. This dynamic connection method maintains circuit stability during operation while enabling adaptability when voltage conditions change.
4Use of energy by moving object
If voltage is insufficient, then LEDs can be powered, but luminosity becomes low; when voltage is excessive, LEDs will burn out
Solution Approach 1:
The patent introduces an external regulating resistor as an intermediary component between the power supply and the LED string. This resistor acts as a buffer that controls and stabilizes the voltage reaching the LEDs, preventing both voltage deficiency and excessive voltage conditions. The intermediary resistor ensures that voltage fluctuations cannot directly affect the LEDs, protecting them from damage while maintaining adequate power supply.
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
Enables flexible and efficient voltage regulation, preventing LED damage from voltage fluctuations and allowing for easy resistor replacement, ensuring consistent luminosity and extended LED lifespan.
Implementation Method 1
at least one first resistor connected to two first resistor wires, the first two resistor wires removably connected to two of the first connecting wires in any portion of the first loop
Data Source
AI summary
An LED light string including a first loop, which further includes a first plurality of LEDs in series successively connected by first connecting wires, and at least one first resistor connected to two first resistor wires, the first two resistor wires removably connected to two of the first connecting wires in any portion of the first loop.