LED circuit board capable of being cut and LED bead unit

Abstract

The invention discloses an LED circuit board capable of being cut and an LED bead unit. The LED circuit board capable of being cut comprises LED beads and a circuit board; an LED bead unit is formed by connecting two positive electrode terminals to the positive electrode of each LED bead and connecting two negative electrode terminals to the negative electrode of each LED bead, wherein the two positive electrode terminals and the two negative electrode terminals are arranged on the two sides of the LED bead unit respectively; and the circuit board is provided with multiple LED bead units whichare arranged in a matrix mode, the positive electrode terminals of all the LED bead units are arranged in the same direction, and the LED bead units are connected in parallel. Due to the special connection relation between the LED bead units and the circuit board of an overall lamp panel, the lamp panel can be cut into any shapes capable of being lighted, and the brightness of the lamp panel meets the requirement; and the lamp panel still can normally work even if the minimum unit after the lamp panel is cut is one bead, and when any one or more beads on the circuit board are damaged, normalwork of the other beads cannot be influenced.

Description

technical field [0001] The invention relates to the field of LED circuit boards, in particular to a cuttable LED circuit board. Background technique [0002] At present, LED light board manufacturers on the market have designed large-area monolithic LED light boards for lighting fields such as ceiling lamps and large-area surface light sources. Such light boards use three structures for circuit connection: [0003] 1. A group of 3 strings and several parallels; [0004] 2. A number of lamp beads are combined into a group, and then every 3 groups or 4 groups are connected again; [0005] 3. The whole string of 20 to 100 lamp beads is powered by constant current switching power supply, resistance-capacitance power supply or +300V high-voltage driving mode. [0006] However, this kind of board cannot be cut, any form of cutting will destroy the connection lines of the LED lamp beads on the board, and the high-voltage driving method will also bring the danger of electric shock...

AI Technical Summary

Problems solved by technology

[0006] However, this type of board cannot be cut, and any form of cutting will destroy the connection line of the LED lamp beads on the board, and the high-voltage driving method will also bring the risk of electric shock

[0007] There are cuttable boards in the field of LED light strips, and the smallest unit cut out is a light strip that can be used independently, but this cutting method must be cut in strict accordance with the cutting line specified in the early stage of board design, otherwise it will damage the minimum The independence of the unit causes partial or overall failure of the board and affects normal work

Sometimes users need to customize a suitable light bar if they want to use it, which is very inconvenient

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