Light emitting device and light source module thereof

Abstract

The invention discloses a light emitting device and its light source module. The light source module includes a main circuit board, a plurality of light emitting units and a driving unit. A plurality of through holes are formed on the main circuit board, and the light-emitting unit includes a transparent substrate, a circuit layer, a plurality of light-emitting diode crystal grains and a transparent adhesive layer. The transparent substrate includes a first board surface, the transparent substrate is arranged on the main circuit board, and the first board surface of the transparent substrate and the main circuit board form a predetermined angle. The circuit layer is arranged on the first board surface; the light-emitting diode crystal grain is arranged on the first board surface and is electrically connected with the circuit layer. The transparent adhesive layer covers the LED crystal grains. The driving unit includes a driving circuit board and a driver. The driving circuit board includes a plurality of protrusions. The protrusions are correspondingly inserted into the through holes so that the driving circuit board is approximately perpendicular to the main circuit board. The driver is electrically connected to the driving circuit board. The light-emitting device and its light source module of the present invention have a large light-emitting angle, and the manufacturing process is simple.

Description

technical field [0001] The invention relates to a light emitting device and its light source module, in particular to a light emitting device using a light emitting diode as a light source and its light source module. Background technique [0002] Light emitting diode (light emitting diode, LED) is a kind of semiconductor element, which mainly converts electrical energy into light energy through semiconductor compounds to achieve luminous effect. Therefore, it has the advantages of long life, high stability and low power consumption, and has been widely used. It is widely used in home, office, outdoor and mobile lighting to replace traditional non-directional light sources such as lamp tubes, incandescent bulbs and halogen lamps. [0003] Cooperate with reference figure 1 , is a cross-sectional view of a known light-emitting device. The light emitting device 1 includes a casing 10 , a light source module 12 , a driving module 14 , a lampshade 16 and a plurality of connecti...

AI Technical Summary

Problems solved by technology

[0004] Since the light emitting diode 122 is a directional light source, the light emitted by the light emitting diode 122 can only emit light toward the front (that is, the direction opposite to the housing 10). The luminous angle of the device 1 is far lower than that of the non-directional light source emitted by the traditional halogen bulb, so it cannot meet the light output requirements of the non-directional light source such as the halogen bulb, and thus causes the user to reduce the use of the light-emitting diode 122 as a light source. The Will of Lighting Device 1

[0005] Secondly, the light source module 12 and the driving module 14 of the light-emitting device 1 are electrically connected through the connection wire 18, so when assembling the light-emitting device 1, it is necessary to check the connection points of the connection wire 18 and the light source module 12 and the driving module 14 respectively. The overall manufacturing process is relatively complicated for welding, and when the light emitting device 1 is impacted by an external force, the connecting wire 18 may fall off from the light source module 12 or the driving module 14, so that the light emitting device 1 cannot achieve the luminous effect.

Images