Single-color COB light source without positive and negative
CN224698216UActive Publication Date: 2026-08-28JIANGMEN LECCO SEMICON TECH CO LTD
Patent Information
- Application Number
- CN202521552650.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-24
- Publication Date
- 2026-08-28
- Estimated Expiration
- 2035-07-24
AI Technical Summary
Technical Problem
[0004]现有的上述COB虽然能够满足基本的使用需求，但是其都是通过单向的发光芯片进行串联，这样与发光芯片串接的电源必须与发光芯片的正负极对应，否则会导致整个COB不亮甚至将其损坏，使用效果较差
Benefits of technology
[0013]采用上述技术方案，本实用新型提供的一种不分正负单色COB光源，具有以下有益效果：该不分正负单色COB光源中的发光芯片组分别与正极电源焊盘及负极电源焊盘电性连接，基板上设置有第一单向导通二极管、第二单向导通二极管、第三单向导通二极管及第四单向导通二极管，该第一单向导通二极管及第二单向导通二极管均分别与正极电源焊盘及发光芯片组电性连接，该第三单向导通二极管及第四单向导通二极管均分别与负极电源焊盘及发光芯片组电性连接，通过设置至少4颗单向二极管控制电流在不同方向输入时保障其正向流向发光芯片组，无需分辨电源正极与负极进行接电，正接、反接电源都能进行通电发光，确保发光芯片组正常工作，能够有效保护发光芯片组，安全性高，使用效果好。
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224698216U_ABST
Abstract
The utility model relates to COB light source technical field, specifically disclose a kind of not positive and negative single color COB light source, including substrate, positive electrode power supply pad, negative electrode power supply pad and light emitting chip group are arranged on the substrate, the light emitting chip group is respectively with the positive electrode power supply pad and negative electrode power supply pad electric connection, first unidirectional conducting diode, second unidirectional conducting diode, third unidirectional conducting diode and fourth unidirectional conducting diode are arranged on the substrate, the first unidirectional conducting diode and second unidirectional conducting diode are electrically connected with the positive electrode power supply pad and light emitting chip group respectively, the third unidirectional conducting diode and fourth unidirectional conducting diode are electrically connected with the negative electrode power supply pad and light emitting chip group respectively.The utility model does not need to distinguish power supply positive and negative to connect electricity, positive connection, reverse connection power supply can be energized to emit light, safety is high, and use effect is good.
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Citation Information
Patent Citations
Constant-voltage normal single-color COB (Chip On Board)
CN222335241U