TW201432951A - Integrally multilayered LED lamp tube - Google Patents

Abstract

An integrally multilayered LED lamp tube comprises a holder and an illuminating unit. A slot is formed on the holder, the bottom surface of the slot disposed with an illuminating unit composed of LED dies. The invention further forms an optical layer and a protective layer in the slot, and a conductive unit composed of two conductive rods. The conductive rods and the illuminating unit, the circuit adaption board are formed into electric connection. While finishing the packaging process of the conductive rod, the optical layer and the protective layer for the LED dies on the holder, the LED lamp tube can be completed accordingly, preventing final assembling process and transportation process. Accordingly, it effectively reduces production time, simplifies process and improves yield.

Description

Integrated multi-layer LED tube

An LED tube, in particular, an integrated multi-layer LED tube that effectively reduces production time and manufacturing cost, simplifies process and improves yield.

Light-emitting diodes (LEDs) have the characteristics of low energy consumption, long service life, small size, and fast response. In recent years, the development of their technology has become increasingly mature, so they have gradually replaced traditional lamps. In particular, the application of LEDs to the most used fluorescent tubes, namely LED tubes, is currently the mainstream topic in the industry.

The conventional lamp type LED lamp mainly comprises: a lamp tube, a heat dissipation plate, a circuit board, a plurality of LED light-emitting elements, and two conductive end covers. The heat dissipation plate is placed in the lamp tube, the circuit board is attached to the heat dissipation plate, and the plurality of LED light-emitting elements are electrically connected to the circuit board.

When assembling, the LED light-emitting component must be electrically soldered to the circuit board, and then the components of the LED light-emitting component and the circuit board are fixed to the heat dissipation plate. The components mentioned above are all finished products, and the LED light-emitting elements can be produced one by one through a plurality of processes such as upstream wafer fabrication, midstream grain fabrication, and downstream die packaging. In addition, the circuit board is fabricated by attaching an etch resist (pressing film or coating), and performing multiple processes such as exposure development, etching, and the like.

The LED light-emitting components and circuit boards in the conventional light-tube type LED lamps are all assembled through the multi-pass process and assembled into the existing lamp-type LED lamps. For example, in the production of LED light-emitting components, after the upstream factory molds the wafers, the wafers are transported to the midstream factory to form the crystal grains, and finally the downstream wafers are packaged into the crystal grains. A package of lead frame and fluorescent glue and other materials and components, and the die needs to be packaged, so when packaging A large amount of raw materials and a large number of components must be used. In addition, the existing process of LED light-emitting elements must also consider the transportation costs between the upper, middle and lower reaches and the problem of grain damage during transportation. UUP Therefore, the conventional technology has problems such as excessive process complexity, high production cost, long production time, and yield.

The main object of the present invention is to provide an integrated multi-layer LED lamp tube, comprising a base having a light exiting side, a groove formed on the light exiting side, the base passing through at least one pair of through holes; and at least A lighting unit is disposed on a bottom surface of the groove. At least one lighting unit is composed of a plurality of LED dies.

The invention further includes an optical layer overlying the at least one illumination unit; a protective layer overlying the optical layer. A circuit adapter plate is disposed on a side of the base opposite to the light exiting side. At least one conductive unit consisting of two conductive rods, the two conductive rods are respectively disposed in the pair of through holes, and the top ends of the two conductive rods are electrically connected with the at least one lighting unit, and the bottom ends of the two conductive rods are The circuit adapter board forms an electrical connection.

The present invention utilizes the narrow space of the trench to accommodate the optical layer and the protective layer, so that the trench can be filled with a small amount of raw materials, and the optical layer can be formed on the LED dies. The protective layer further achieves the purpose of greatly reducing the amount of raw materials and reducing the production cost.

Moreover, the present invention only needs to use two conductive rods, that is, can be electrically connected with a plurality of LED dies, and the amount of components can be greatly reduced compared with the manner in which each of the dies of the prior art is provided with a set of lead frames. And the goal of reducing production costs can also simplify the process.

A feature of the present invention is that when the LED die is finished with a package process of two conductive rods, the optical layer and the protective layer on the pedestal, the usable LED tube is completed, and the final assembly procedure is eliminated. And the transportation process, etc., thereby effectively reducing the production time, simplifying the process and improving the yield.

Another feature of the present invention is that the susceptor can be modularly fabricated and directly mounted on the lamp tube, and can be provided with an appropriate number of pedestals or pedestals according to different lengths of lamps. Set up multiple lighting units to meet various usage needs.

10‧‧‧Integrated multi-layer LED tube

1‧‧‧Base

2‧‧‧Wiring

11‧‧‧ trench

13, 15‧‧‧through holes

17‧‧‧Flange

3‧‧‧LED dies

5‧‧‧Circuit Adapter Board

51‧‧‧ positive line

53‧‧‧Negative line

61, 63‧‧‧ Conductive rod

611‧‧‧Perforation

613‧‧‧Silver

7‧‧‧Package colloid

8‧‧‧ Heat sink

81‧‧‧ Groove

9‧‧‧Diffuse cover

100‧‧‧Optical layer

200‧‧‧protection layer

ES‧‧‧light side

The first figure is a top view of the integrated multi-layer LED tube of the present invention.

The second figure is a cross-sectional view of the integrated multi-layer LED tube of the present invention.

The third figure is a schematic view of a preferred embodiment of the integrated multi-layer LED lamp of the present invention.

The fourth figure is a schematic view of another preferred embodiment of the integrated multi-layer LED lamp of the present invention.

Figure 5 is a schematic view of a preferred embodiment of the base of the present invention.

Figure 6 is a schematic view showing the use of a plurality of pedestals of the present invention.

Figure 7 is a schematic view of a preferred embodiment of the base of the present invention.

The eighth figure is a schematic view of the use of a plurality of pedestals

The embodiments of the present invention will be described in more detail below with reference to the drawings and the <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt;

Referring to the first figure, a top view of the integrated multi-layer LED lamp of the present invention, referring to the second figure, is a cross-sectional view of the integrated multi-layer LED lamp of the present invention. As shown in the first figure, the integrated multi-layer LED tube 10 of the present invention comprises a base 1 and at least one illumination unit. The base 1 is hollow and has a light exit side ES, and the light exit side ES forms a The trench 11 is disposed on the bottom surface of the trench 11 , and the sidewalls of the trench 11 are a non-vertical surface, and the sidewalls of the trench 11 have an inclination angle of 40 to 65 degrees. between. Preferably, the base is made of aluminum or other thermally conductive metal.

The at least one lighting unit is composed of a plurality of LED dies 3, which are joined by wire bonding to form a series electrical connection, wherein the wires 2 used for wire bonding are gold wires or other conductive wires. The pedestal 1 is disposed at least with a pair of through holes 13 and 15 disposed at opposite end sides of the at least one illumination unit and in an oblique relationship.

Referring to the third figure, a schematic diagram of a preferred embodiment of the integrated multi-layer LED lamp of the present invention is shown. The invention further includes an optical layer 100 covering the at least one illumination unit, thereby generating an optical effect, such as light mixing, etc., with the at least one illumination unit, wherein the optical layer 100 is mainly composed of It consists of a light glue or a silicone rubber mixed with a fluorescent glue. The present invention further includes a protective layer 200 covering the optical layer 100 to block moisture and dust foreign matter, thereby avoiding deterioration of optical components such as the optical layer 100, wherein the protective layer 200 is mainly made of silicone rubber. composition.

Referring to the fourth figure, a schematic diagram of a conductive unit of the integrated multi-layer LED tube of the present invention, referring to the fifth figure, a schematic diagram of the connection of the conductive rods of the integrated multi-layer LED tube of the present invention, and referring to the second and third figures The present invention further includes at least one conductive unit, the conductive unit is composed of two conductive rods 61, 63, and the two conductive rods 61, 63 are respectively disposed in the pair of through holes 13, 15, and the two conductive rods 61, 63 are A potting compound injected into the at least one pair of through holes 13, 15 is fixed.

The encapsulant 7 is formed on the outer peripheral surface of the body of the two conductive rods 61 and 63 and the through holes 611 of the two conductive rods 61 and 63. Thereby, the fixing body 7 is tightly coupled to the two conductive rods 61, 63. At the same time, the elasticity of the encapsulant 7 can be utilized, so that the two conductive rods 61, 63 can be easily inserted or drawn into the at least one pair of through holes 13, 15 which are made of silicone glue, LCP. Or at least one of the epoxy fixing glues.

Referring to the second and third figures, the top ends of the two conductive rods 61, 63 are electrically connected to the at least one lighting unit, and the bottom ends of the two conductive rods 61, 63 are connected to an LED driving unit (not shown). The electrical connection is formed to receive the driving voltage generated by the LED driving unit, and the driving voltage reaches the at least one lighting unit via the two conductive bars 61 and 63 to cause the LED dies 3 to emit light. The two conductive rods 61, 63 are made of copper or other electrically conductive metal. The LED driving unit is disposed inside the susceptor 1. Preferably, the top ends of the two conductive rods 61, 63 are further plated with a layer of silver 613 to facilitate the line welding operation.

When a plurality of conductive units are provided, all of the conductive rods 61 and all of the conductive rods 63 are connected to each other, and then electrically connected to the positive and negative electrodes of the LED driving unit to form a plurality of conductive units and The electrical connection of the LED drive unit is shown in Figure 5.

Referring to the sixth figure, a schematic diagram of another preferred embodiment of the integrated multi-layer LED lamp of the present invention. As shown in the sixth figure, the integrated multi-layer LED lamp tube of the present invention further comprises a heat sink 8 and a diffusion cover 9. The heat sink 8 is extruded from aluminum and has a discontinuous semicircular shape. The base 1 is fixed to the heat sink 8 , wherein the heat sink 8 forms corresponding two groove portions 81 . Two sides of the base 1 are provided with two flanges 17, two flanges 17 and two grooves The sections 81 can be connected to each other. Thereby, the two flanges 17 are aligned and slid into the two groove portions 81, and the base 1 is fixed to the heat sink 8. The diffuser cover 9 is semi-circular and integrated with the heat sink 8 , and the diffuser cover 9 is disposed on the light exiting path of the at least one lighting unit. For the manner in which the diffusion cover 9 and the heat sink 8 are coupled, refer to the manner in which the heat sink 8 and the base 1 are coupled, and details are not described herein.

Referring to the seventh figure, a schematic view of a preferred embodiment of the susceptor of the present invention is shown. As shown in the seventh figure, the trench 11 is further provided with a plurality of lighting units, each of which includes a plurality of LED dies 3.

Referring to the eighth figure, a schematic view of the use of a plurality of pedestals of the present invention. As shown in the eighth figure, the present invention further includes the use of a plurality of pedestals 1 simultaneously to accommodate lamp lengths of different sized lengths.

The present invention utilizes the narrow space of the trench to accommodate the optical layer and the protective layer, so that the trench can be filled with a small amount of raw materials, and the optical layer can be formed on the LED dies. The protective layer further achieves the purpose of greatly reducing the amount of raw materials and reducing the production cost.

The present invention utilizes the narrow space of the trench to accommodate the optical layer and the protective layer, so that the trench can be filled with a small amount of raw materials, and the optical layer can be formed on the LED dies. The protective layer further achieves the purpose of greatly reducing the amount of raw materials and reducing the production cost.

A feature of the present invention is that when the LED die is finished with a package process of two conductive rods, the optical layer and the protective layer on the pedestal, the usable LED tube is completed, and the final assembly procedure is eliminated. And the transportation process, etc., thereby effectively reducing the production time, simplifying the process and improving the yield.

Another feature of the present invention is that the susceptor can be modularly fabricated and directly mounted on the lamp tube, and can be provided with an appropriate number of pedestals or pedestals according to different lengths of lamps. Set up multiple lighting units to meet various usage needs.

The above is only a preferred embodiment for explaining the present invention, and is not intended to limit the present invention in any way, and any modifications or alterations to the present invention made in the spirit of the same invention. All should still be included in the scope of the intention of the present invention.

10‧‧‧Integrated multi-layer LED tube

1‧‧‧Base

2‧‧‧Wiring

3‧‧‧LED dies

11‧‧‧ trench

13, 15‧‧‧through holes

Claims (14)

An integrated multi-layer LED lamp tube comprising: a pedestal having a light exiting side, a groove formed on the light exiting side, the pedestal passing through at least one pair of through holes; and at least one lighting unit disposed on On the bottom surface of the groove. The integrated multi-layer LED tube of claim 1, wherein the base is made of aluminum. The integrated multi-layer LED tube of claim 1, wherein the two sidewalls of the trench are a non-vertical surface, and the angles of the two sidewalls of the trench are between 40 and 65 degrees. The integrated multi-layer LED lamp of claim 1, wherein the at least one lighting unit is composed of a plurality of LED dies, and the LED dies are connected in series by wire bonding. The integrated multi-layer LED lamp of claim 1, further comprising an optical layer covering the at least one lighting unit, the optical layer being made of fluorescent glue or silicone rubber mixed with fluorescent glue. Composed of. The integrated multi-layer LED lamp tube of claim 5, further comprising a protective layer covering the optical layer, the protective layer being composed of silicone rubber. The integrated multi-layer LED tube of claim 1, further comprising at least one conductive unit composed of two conductive rods, the two conductive rods respectively penetrating in the pair of through holes, the two conductive rods The top end is electrically connected to the at least one lighting unit. The integrated multi-layer LED tube of claim 7, wherein the top ends of the two conductive rods are further coated with a layer of silver. The integrated multi-layer LED tube according to claim 7, wherein the two conductive rods are fixed by an encapsulant injected into the pair of through holes, the encapsulant is made of silicone glue, LCP and epoxy resin. Fixed glue composition. The integrated multi-layer LED lamp of claim 9, further comprising an LED driving unit electrically connected with the bottom ends of the two conductive rods to provide a driving voltage to the two conductive rods. The integrated multi-layer LED tube of claim 10, wherein the two conductive rods are made of copper. For example, the integrated multi-layer LED tube according to claim 1 of the patent scope, wherein the package further The utility model comprises a heat sink, which is made of aluminum and has a semicircular shape, and the base is fixed on the heat sink. The integrated multi-layer LED tube of claim 12, further comprising a diffusion cover, which is semi-circular and integrated with the heat dissipation seat, the diffusion cover being disposed on the light of the at least one illumination unit On the path. The integrated multi-layer LED lamp of claim 1, wherein the groove is further provided with a plurality of lighting units.