Light-emitting diode module and a light apparatus

Patent metadata

Field	Value
Publication number	US-11417814-B2
Application number	US-202117236912-A
Country	US
Kind code	B2
Filing date	Apr 21, 2021
Priority date	Jun 2, 2017
Publication date	Aug 16, 2022
Grant date	Aug 16, 2022

Abstract

An LED chip module includes a first electrode plate and a second electrode plate. A first set of LED chip and a second set of LED chip are respectively set on the first electrode plate and the second electrode plate. The second set of LED chip is electrically connected to the first set of LED chip. A plastic shell is fixedly connected to the first electrode plate and the second electrode plate by injection molding to make the first electrode plate and the second electrode plate keep a predetermined space between each other and make a lower surface of the first electrode plate and a lower surface of the second electrode plate be respectively connected to two different polarity terminals of the power supply to drive the first set of LED chip and the second set of LED chip to emit light.

First claim

The invention claimed is:

1. An LED device, comprising:
a first electrode plate, wherein a first set of LED chips is set on an upper surface of the first electrode plate, the first set of LED chips are kept unaligned, the first electrode plate transmits heat of the first set of LED chips to a patterned conductor and receives a driving current transmitted via the patterned conductor;
a second electrode plate electrically connected to the first set of LED chip for transmitting the driving current from the first set of LED chips;
a plastic shell, wherein the plastic shell is fixedly connected to the first electrode plate and the second electrode plate by injection molding to make the first electrode plate and the second electrode plate keep a predetermined space between each other and make a lower surface of the first electrode plate and a lower surface of the second electrode plate be respectively connected to power to drive the first set of LED chip and the second set of LED chip to emit light; and
a fluorescent layer, wherein the fluorescent layer fills a groove of the plastic shell.

2. The LED chip module of claim 1 , wherein a second set of LED chip is set on the upper surface of the second electrode plate, and the second set of LED chip is electrically connected to the first set of LED chip.

3. The LED chip module of claim 2 , wherein the first set of LED chip and the second set of LED chip have a plurality of LED chips, the plurality of LED chips are electrically connected together in series, and two ends of the LED chip in series are each connected to the first electrode plate and the second electrode plate.

4. The LED chip module of claim 2 , wherein an area of the first electrode plate is larger than an area of the second electrode plate, and a number of LED chips in the first set of LED chip is larger than a number of LED chips of the second set of LED chip.

5. The LED chip module of claim 1 , wherein a direction which the first electrode plate and the second electrode plate are perpendicular to each other is an extending direction, length of the first electrode plate and the second electrode plate in an extending direction is larger than 90% with respect to the total length of a plastic shell in the extending direction.

6. A light apparatus, comprising:
a substrate;
a plurality of patterned conductors being set on the substrate; and
a plurality of LED chip modules, wherein each of the LED chip module comprises a first electrode plate, and a first set of LED chips is set on an upper surface of the first electrode plate, the first electrode plate transmits heat of the first set of LED chips to one patterned conductor and transmits a driving current of the first set of LED chips to the patterned conductor, the first set of LED chips are kept unaligned, each of the LED chip module comprises a second electrode plate electrically connected to the first set of LED chip, a plastic shell through the plastic shell is formed by injection molding and fixedly connected to the first electrode plate and the second electrode plate so that the first electrode plate and the second electrode plate are spaced apart from each other by a predetermined space, the lower surface of the first electrode plate and the lower surface of the second electrode plate are respectively connected to two different polarity terminals of the power supply for driving the first set of LED chip to emit light, and fluorescent coating covers the first set of LED chip and the second set of LED chip,
wherein the plurality of patterned conductors are thermally connected to the first electrode plate and the second electrode plate of plurality of LED chip modules.

7. The light apparatus of claim 6 , further comprising a second set of LED chips placed on the second electrode plate connecting to the first set of LED chips.

8. The light apparatus of claim 7 , wherein the first set of LED chip and the second set of LED chip have a plurality of LED chips, the plurality of LED chips are electrically connected together in series, and two ends of the LED chip in series are each connected to the first electrode plate and the second electrode plate.

9. The light apparatus of claim 7 , wherein an area of the first electrode plate is larger than an area of the second electrode plate, and a number of LED chips in the first set of LED chip is larger than a number of LED chips of the second set of LED chip.

10. The light apparatus of claim 6 , wherein the flat heat dissipation portion is the patterned wire extension portion electrically connected to the first electrode plate or the second electrode plate, and the plurality of patterns of the patterned conductors are distributed according to a distribution of heat to uniformly heat dissipation.

11. The light apparatus of claim 6 , wherein a direction the first electrode plate and the second electrode plate are perpendicular to each other is an extending direction, length of the first electrode plate and the second electrode plate in an extending direction is larger than 90% with respect to the total length of a plastic shell in the extending direction.

12. The light apparatus of claim 6 , wherein the plastic shell has a surrounding portion at a portion of four corners to strengthen adhesion for the first electrode plate and the second electrode plate.

Assignees

• Xiamen Eco Lighting Co Ltd

Inventors

• Cao Liangliang
• Chen Huiwu
• Wang Qiyuan

Classifications

• H10W90/756

  between a chip and a stacked lead frame, conducting package substrate or heat sink · CPC title

• H10W90/753

  between laterally-adjacent chips · CPC title

• H10W72/884

  Die-attach connectors and bond wires · CPC title

• H10W90/00

  Package configurations · CPC title

• H10H20/8512

  Wavelength conversion materials · CPC title