Rectifier Diode Encapsulation with Common Electrodes
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Solution Overview
Problem
Conventional full-bridge rectifier assemblies for LED lighting are bulky, inflexible, and costly due to the need for external protective shells and lengthy wiring when extending electrode distances, limiting their application in various scenarios.
Innovation Solution
A rectifier diode encapsulation structure with common electrodes, comprising two encapsulations (one with a common anode and one with a common cathode) each housing two rectifier diodes and a resin encapsulation body with three pins, allowing for flexible application and reduced material costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional full-bridge rectifier assembly is used, then the rectification function is achieved, but the volume is large and application flexibility is poor
Solution Approach 1:
The patent divides the conventional full-bridge rectifier assembly into two separate encapsulations: one with common anode and one with common cathode. Each encapsulation contains two rectifier diodes and is independently packaged with three pins. This segmentation reduces the volume of each individual component and improves application flexibility by allowing selective use of one or both encapsulations depending on the specific lighting scenario.
2Reliability
If a protective shell is welded externally for full-bridge rectifier, then protection is provided, but the welding process is troublesome and complex
Solution Approach 1:
The patent merges the protective shell function directly into the encapsulation body during the molding process. The resin encapsulation body simultaneously serves as both the structural housing and the protective element, eliminating the need for separate external protective shells and complex welding operations. This integration simplifies the manufacturing process while maintaining reliable protection of the internal rectifier diodes.
3Volume of stationary object
If integrated bridge stack is used, then volume is reduced, but it cannot be used without splitting and requires longer wires for extended electrode distance
Solution Approach 1:
The patent segments the rectifier function into two modular encapsulations with standardized three-pin interfaces. This allows the components to be used independently or combined based on application requirements. The common anode and common cathode configurations enable direct connection to LED strings without requiring complex wiring or extension wires, even when electrode distances need to be extended.
Solution Approach 2:
Each encapsulation is designed with universal three-pin configuration that can adapt to different application scenarios. The common anode and common cathode encapsulations can be used independently for single-string applications or combined for multi-string applications, providing multi-functionality without requiring additional components or complex wiring arrangements.
4Reliability
If conventional full-bridge rectifier assembly is used, then rectification is achieved, but material cost is high
Solution Approach 1:
By dividing the full-bridge rectifier into two separate encapsulations, the patent enables selective usage based on application needs. Users can employ only one encapsulation for simpler applications, reducing material consumption and cost. The segmentation allows for optimized material usage while maintaining the essential rectification function.
Solution Approach 2:
The modular design allows for selective deployment where only the necessary encapsulation(s) are used in each application. This enables discarding of unnecessary components and recovering of material costs by avoiding over-provisioning. The common anode and common cathode encapsulations can be independently selected and combined based on specific circuit requirements.
Data Source
AI summary
A rectifier diode encapsulation structure with common electrodes, comprises an encapsulation assembly with common electrodes, the encapsulation assembly with common electrodes comprises an encapsulation with a common anode and an encapsulation with a common cathode; the encapsulation with the common anode and the encapsulation with the common cathode both comprise two rectifier diodes and a encapsulation body covering outside of the rectifier diodes, and the encapsulation body is provided with three pins, in the encapsulation with a common anode one of the pins is electrically connected to the anode of the two rectifier diodes, the other two pins are electrically connected to the cathodes of the two rectifier diodes one-to-one respectively. The disclosure reduces the volume of the encapsulation by separating the traditional rectifier components, saves materials, reduces costs and makes the application more flexible.