LED light-emitting module and LED filament and compact LED bulb using LED light-emitting module

Abstract

The invention discloses a light-emitting diode (LED) light-emitting module, which comprises a substrate and a light-emitting circuit, the light-emitting circuit at least comprises an LED and a capacitor, the light-emitting circuit is arranged on the substrate, the substrate is made of an insulating material, a dielectric layer of the capacitor is formed by utilizing the insulating substrate, the dielectric layer of the capacitor is positioned between inner electrode layers of the capacitor, and the dielectric layer of the capacitor is positioned between the inner electrode layers of the capacitor. The inner electrode layer is electrically connected with an outer electrode of the capacitor, and the outer electrode of the capacitor is electrically connected into the light-emitting circuit. The invention further discloses a lamp filament and a bulb which are made of the LED light-emitting module. According to the invention, the circuit substrate space of the LED light-emitting module is integrated as the capacitor, and the capacitor is integrated with the circuit substrate and the LED, so that the capacitor can play a role of high voltage and large capacity and plays a role of filtering or voltage stabilization. Even, a plurality of ceramic capacitors can be integrated in a circuit substrate, and the functions of capacitance drop type voltage division, filtering voltage stabilization, high-frequency filtering and the like can be achieved in a complex driving control circuit.

Description

technical field [0001] The invention relates to the field of semiconductor lighting, in particular to an LED light-emitting module and an applied LED filament and a compact LED bulb. Background technique [0002] Now, LED light-emitting diode light-emitting technology has been widely used in the field of lighting, such as CN107477404A "AC LED Bulb" discloses an implementation of AC LED, such as figure 1 , In this scheme, the middle LED part is always on, and the two LEDs on the side are repeatedly switched in the half cycle of the alternating current, the LED life performance is very poor, the LED reverse shock withstand voltage difference, and the reliability of the rectifier circuit is poor. Another example is CN206247057U "An AC LED Lamp" which discloses an AC LED filament, such as figure 2 , A rectifier bridge module is introduced into the LED filament, and a resistor is also added for current limiting in the embodiment. This solution is used in scenarios with no power...

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Problems solved by technology

[0002] Now, LED light-emitting diode light-emitting technology has been widely used in the field of lighting, such as CN107477404A "AC LED light bulb" discloses a realization of AC LED, such as figure 1 , the middle LED part of this scheme is always on, and the two side LEDs are switched repeatedly in the half cycle of the alternating current, the LED life performance is very poor, the LED reverse impact withstand voltage is poor, and the reliability of the rectification circuit is poor.

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