Segmented LED Module with Independent Chip Groups
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Solution Overview
Problem
Existing LED modules require multiple units to achieve high light output, leading to increased complexity and power consumption, especially in applications like emergency lighting where power is limited.
Innovation Solution
An LED module design with two groups of LED chips, where one group is operated independently using a separate electrical supply, allowing for reduced light output and power consumption by selectively activating either group based on need, with a color conversion substance in the covering layer to adjust spectrum.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If multiple LED modules are used to achieve high light output, then the light output is improved, but the device complexity and power consumption increase
Solution Approach 1:
The LED module is segmented into multiple independently controllable groups of LED chips (first group, second group, etc.) that can be selectively activated. This allows the module to achieve high light output by activating multiple groups simultaneously while maintaining the capability to reduce complexity and power consumption by activating only one group when lower light output is sufficient, thus resolving the contradiction between light output and device complexity
Solution Approach 2:
The LED module implements dynamic control by allowing selective activation of different LED chip groups based on lighting requirements. The module can transition between different operational states (single group active, multiple groups active, all groups active) to match the actual lighting needs, thereby avoiding the fixed complexity of always operating at full capacity with all groups
2Illumination intensity
If multiple LED modules are used to achieve high light output, then the light output is improved, but the power consumption increases
Solution Approach 1:
By dividing the LED module into separable groups of LED chips with independent control, the system can segment power consumption according to actual lighting needs. When high light output is required, multiple groups are activated simultaneously; when lower light output suffices, fewer groups are activated, thereby reducing overall power consumption while maintaining the capability for high output when needed
Solution Approach 2:
The invention applies partial action by activating only the necessary number of LED chip groups required to achieve the desired light output level. Instead of always operating all LED chips at full capacity (excessive action), the system activates only the minimum necessary groups, thereby reducing power consumption while still meeting lighting requirements
3Adaptability or versatility
If LED chips are divided into multiple groups with independent electrical supplies, then flexibility in lighting modes is improved, but the device complexity increases
Solution Approach 1:
The electrical supply system is segmented into multiple independent supplies (first electrical supply, second electrical supply, etc.), each connected to a specific group of LED chips. This segmentation enables flexible lighting modes by allowing selective activation of different supply groups, while the modular structure keeps the complexity manageable through standardized connection patterns and independent control units
4Illumination intensity
If the number of LED chips is increased to achieve higher light output, then the light output is improved, but the power consumption increases
Solution Approach 1:
LED chips are organized into distinct groups that can be selectively activated. This segmentation allows the system to achieve high light output by activating multiple groups simultaneously when needed, while reducing the effective number of active LED chips (and thus power consumption) by activating only one or a few groups when lower light output is sufficient, thereby decoupling the relationship between total chip count and actual power consumption
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
This design reduces the number of LED modules needed, lowers power consumption, and allows for flexible lighting modes by varying the activation of LED chip groups, extending the service life of emergency lighting fixtures and enabling efficient use of energy storage.
Implementation Method 1
The covering layer has a color conversion substance, in particular at least one phosphor, which converts radiation emitted by the LED chips into radiation in a different spectrum
Data Source
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AI summary
In one embodiment, the invention provides an LED module, having a carrier, a first group and a second group of LED chips arranged on the carrier, optionally one or more further groups of LED chips, and a layer covering all LED chips and containing at least one colour conversion material, which converts the spectrum of the LEDs of one or all groups into a spectrum with a different dominant wavelength. Every group comprises at least one LED chip, preferably a plurality of LED chips. The LED chips of one group are preferably connected in series and can be supplied starting from the same electrical supply. The LED chips of different groups can be supplied independently of one another, starting from different electrical supplies.