Series-Connected Lamp String With Segmented Transformer Control
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Solution Overview
Problem
Existing decorative lamp strings are limited in length due to the number of bulbs that can be connected by a transformer, leading to uneven voltage and brightness across bulbs, and the inability to extend the string without risking overload.
Innovation Solution
An integrated series-connected lamp string design with multiple control boxes and light sources, each with a transformer module and control module, allowing for extension without overloading, and ensuring consistent brightness and voltage through a high-voltage and low-voltage circuit system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If multiple bulbs are connected through a single transformer to extend lamp string length, then the overall length of the lamp string increases, but the voltage becomes uneven across bulbs and the transformer becomes overloaded
Solution Approach 1:
The patent divides the lamp string into multiple independent segments, each with its own transformer module integrated into control boxes. Instead of using one transformer for all bulbs, each control box contains a transformer that independently powers its associated light sources, ensuring voltage stability while allowing the overall string to be extended by adding more control box segments.
2Device complexity
If a single transformer is used to power the entire lamp string, then the device complexity is reduced, but the lamp string length is limited and overload occurs
Solution Approach 1:
The patent integrates the transformer module inside each control box, creating a nested structure where the transformer is contained within the control box housing. This allows multiple control boxes to be connected in series, with each box containing its own power transformation capability, thereby extending the overall lamp string length without requiring a complex external transformer network.
3Area of stationary object
If the lamp string is extended to increase decoration coverage, then the area of coverage increases, but the transformer becomes overloaded and voltage becomes uneven
Solution Approach 1:
The patent segments the power supply function by placing a transformer module in each control box, so that each segment independently handles its own power requirements. This distributes the power load across multiple transformers rather than concentrating it in one, allowing the decoration coverage area to be extended without overloading any single transformer.
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 the lamp string to be safely extended to desired lengths with consistent brightness and voltage, preventing overload, and allows for remote control and varied lighting effects.
Implementation Method 1
a commercial power supply is electrically connected with the transformer module through the first high-voltage connection end, and a high-voltage circuit and a low-voltage circuit are formed through the transformer module
Data Source
AI summary
An integrated series-connected lamp string comprises light sources and control boxes, and each light source is provided with a control box; the control box comprises a power inlet connector, a power transmission connector and an accommodating space, wherein a circuit board is arranged in the accommodating space, and the circuit board is provided with a transformer module and a control module; the power inlet connector is provided with a first high-voltage connection end, the power transmission connector is provided with a low-voltage connection end and a second high-voltage connection end, and the commercial power forms a high-voltage circuit and a low-voltage circuit through the transformer module; the high-voltage circuit is connected to the first high-voltage connection end of the next stage through the second high-voltage connection end, and the low-voltage circuit is connected to the light source through the low-voltage connection end.


