Side-illuminating type panel lamp

Abstract

The invention aims to provide a side-illuminating type panel lamp. The hybrid connection mode that at least two LED lamp bodies are connected in series, then connected with other LED lamp bodies in parallel and then connected with other lamp bodies in series is adopted, and a circuit is a scheme formed by gathering the advantages of hybrid connection modes of series connection-to-parallel connection and parallel connection-to-series connection. When one LED in a series-connection lamp set loses efficacy and forms an open circuit, LEDs which are in series connection with the LED cannot illuminate, increased electric current of each of other residual LEDs in a parallel-connection lamp set is little, normal using of the other LEDs is not influenced, only a dark spot exists in overall illumination, and the overall light-emitting effect is not influenced; and when one LED loses efficacy and forms a short circuit, the LEDs which are in series connection with the LED is abnormally bright, the other residual LEDs in the parallel-connection lamp set are not bright, and after the functions of the abnormally-bright LED are aged and lose efficacy, the other LEDs can be normally lighted. According to the side-illuminating type panel lamp, the circuit has the characteristic of a multiple-series circuit that one part is connected in series and then in parallel, so that the light-shade difference phenomenon caused by the forward turn-on voltage value characteristic difference of part of the LEDs can be relieved; and the larger the series number is, the slighter the light-shade difference phenomenon is.

Description

technical field [0001] The invention relates to the field of LED lamps, in particular to a side-emitting panel lamp. Background technique [0002] Such as figure 2 As shown, most of the current LED panel lights adopt the hybrid connection method of LEDs in parallel first and then in series, which improves the reliability of each group of LEDs when a single LED fails and opens the circuit. The open circuit may only be a small dark spot, because after the light is equalized by secondary optical devices such as light guide plates, this small dark spot will not affect the overall luminous effect. If it is used as figure 1 As shown, the serial connection first and then the parallel connection mode, if a single LED fails to open circuit, it will affect other LEDs connected in series, causing the entire panel light to emit a black spot. Therefore, the current panel lights are used such as figure 2 As shown, there is still a problem with the hybrid connection method of parallel...

AI Technical Summary

Problems solved by technology

[0010] One object of the present invention is to provide a side-emitting panel light, which can solve the problem of light and dark differences on the side-emitting panel light while ensuring the reliability of each group of LEDs when a single LED fails and opens the circuit.

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