CN210576019U - COB light source with high luminous efficiency and LED street lamp - Google Patents
COB light source with high luminous efficiency and LED street lamp Download PDFInfo
- Publication number
- CN210576019U CN210576019U CN201921684392.2U CN201921684392U CN210576019U CN 210576019 U CN210576019 U CN 210576019U CN 201921684392 U CN201921684392 U CN 201921684392U CN 210576019 U CN210576019 U CN 210576019U
- Authority
- CN
- China
- Prior art keywords
- light source
- mirror surface
- mirror
- luminous efficiency
- cob light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Led Device Packages (AREA)
Abstract
The utility model discloses a COB light source and LED street lamp with high luminous efficiency, wherein the COB light source with high luminous efficiency comprises a mirror aluminum substrate, and the front surface of the mirror aluminum substrate is covered with a printing ink layer; the ink layer is reserved with a plurality of first mirror surface areas and a plurality of second mirror surface areas, the first mirror surface areas form a first mirror surface array, the second mirror surface areas form a second mirror surface array, and each row of first mirror surface areas in the first mirror surface array and each row of second mirror surface areas in the second mirror surface array are arranged alternately; a first bonding pad is arranged at the edge of each second mirror surface area, and an LED light source module is arranged on each first bonding pad; the front of the mirror surface aluminum substrate is also provided with a second pad, a piezoresistor is welded on the second pad, and the packaging structure of the LED light source module is improved by additionally arranging a reflecting surface on the substrate, so that the luminous efficiency of the COB light source is effectively improved, and the luminous effect of the LED street lamp is optimized.
Description
Technical Field
The utility model relates to a LED light source technical field, in particular to high luminous efficiency COB light source and LED street lamp.
Background
The conventional LED street lamp mainly uses a COB light source module, the light source module adopts three conventional chips with the size of 22mil × 35mil to manufacture lamp beads with the success rate of 1W, the voltage of 3.0-3.4V and the driving current of 320mA, and the luminous efficiency of the lamp beads is 200 lm/W; but the loss is large in the process that the light emitted by the final lamp beads reaches the air due to the existing packaging structure, and finally the luminous efficiency of the whole light source module is 137.7lm/W, so that the luminous efficiency of the light source module is reduced.
Thus, the prior art has yet to be improved and enhanced.
SUMMERY OF THE UTILITY MODEL
In view of the foregoing prior art's weak point, the utility model aims to provide a COB light source and LED street lamp of high luminous efficacy, through add the plane of reflection and improve the packaging structure of LED light source module on the base plate, and then effectively improve the luminous efficacy of COB light source, optimize the luminous effect of LED street lamp.
In order to achieve the purpose, the utility model adopts the following technical proposal:
a COB light source with high luminous efficiency comprises a mirror aluminum substrate, wherein the front surface of the mirror aluminum substrate is covered with an ink layer; the ink layer is reserved with a plurality of first mirror surface areas and a plurality of second mirror surface areas, the first mirror surface areas form a first mirror surface array, the second mirror surface areas form a second mirror surface array, and each row of the first mirror surface areas in the first mirror surface array and each row of the second mirror surface areas in the second mirror surface array are alternately arranged; a first bonding pad is arranged at the edge of each second mirror surface area, and an LED light source module is arranged on each first bonding pad; the front surface of the mirror surface aluminum substrate is also provided with a second pad, and the second pad is welded with a piezoresistor.
High luminous efficiency's COB light source in, LED light source module includes the LED chip, the LED chip weld in it has the fluorescence glue film to cover on the first pad, be provided with the box dam around the fluorescence glue film and glue, the top on fluorescence glue film is provided with an optical lens.
In the COB light source with high luminous efficiency, transparent silica gel is filled between the fluorescent glue layer and the optical lens.
In the COB light source of high luminous efficiency, first mirror area is square, the second mirror area is circular.
In the COB light source with high luminous efficiency, a BT layer is further arranged on the mirror aluminum substrate and is located at the lower end of the ink layer.
In the COB light source with high luminous efficiency, the back of the mirror aluminum substrate is provided with radiating fins.
In the COB light source with high luminous efficiency, a quick connector is further arranged on the front face of the mirror aluminum substrate.
An LED street lamp comprises the COB light source with high luminous efficiency.
Compared with the prior art, the COB light source with high luminous efficiency and the LED street lamp provided by the utility model have the advantages that the COB light source with high luminous efficiency comprises a mirror aluminum substrate, and the front surface of the mirror aluminum substrate is covered with the ink layer; the ink layer is reserved with a plurality of first mirror surface areas and a plurality of second mirror surface areas, the first mirror surface areas form a first mirror surface array, the second mirror surface areas form a second mirror surface array, and each row of first mirror surface areas in the first mirror surface array and each row of second mirror surface areas in the second mirror surface array are arranged alternately; a first bonding pad is arranged at the edge of each second mirror surface area, and an LED light source module is arranged on each first bonding pad; the front of the mirror surface aluminum substrate is also provided with a second pad, the second pad is welded with a piezoresistor, and the packaging structure for the COB light source and the LED light source module is improved by additionally arranging a reflecting surface on the substrate, so that the luminous efficiency of the COB light source is effectively improved, and the luminous effect of the LED street lamp is optimized.
Drawings
Fig. 1 is a schematic front view of a mirror aluminum substrate in a COB light source with high light-emitting efficiency provided by the present invention;
fig. 2 is a partial schematic view of a second mirror surface region in a COB light source with high luminous efficiency provided by the present invention;
fig. 3 is a schematic front view of a high light-emitting efficiency COB light source provided by the present invention, in which a mirror aluminum substrate is packaged with an LED light source module;
fig. 4 is a schematic structural diagram of an LED light source module in a COB light source with high luminous efficiency according to the present invention;
fig. 5 is the utility model provides a local sketch of cross-section of aluminium base board of mirror surface in COB light source of high luminous efficiency.
Detailed Description
The utility model provides a COB light source and LED street lamp of high luminous efficiency through add the plane of reflection on the base plate, improves the packaging structure of LED light source module, and then effectively improves the luminous efficiency of COB light source, optimizes the luminous effect of LED street lamp.
In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the following description of the present invention will refer to the accompanying drawings and illustrate embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Referring to fig. 1, fig. 2, fig. 3 and fig. 4, the COB light source with high light-emitting efficiency according to the present invention includes a mirror aluminum substrate 1, a printing ink layer 11 covers a front surface of the mirror aluminum substrate 1, the printing ink layer 11 reserves a plurality of first mirror areas 12 and a plurality of second mirror areas 13 for providing a reflecting surface, the plurality of first mirror areas 12 form a first mirror array, the plurality of second mirror areas 13 form a second mirror array, and each row of first mirror areas 12 in the first mirror array and each row of second mirror areas 13 in the second mirror array are alternately arranged; a first bonding pad 14 is arranged at the edge of each second mirror area 13, an LED light source module 2 is arranged on the first bonding pad 14, and an identification point 15 is arranged at the upper edge of each second mirror area 12, wherein the identification point 15 is used for identifying the arrangement position of the LED light source module 2; the front of the mirror surface aluminum substrate 1 is also provided with a second bonding pad 16, the piezoresistor 17 is welded on the second bonding pad 16, and the packaging structure of the LED light source module 2 is improved by additionally arranging a reflecting surface on the mirror surface aluminum substrate 1, so that the light-emitting efficiency of a COB light source is effectively improved, and the light-emitting effect of the LED street lamp is optimized.
Specifically, printing ink layer 11 is high reflection printing ink coat high reflection printing ink can reflect the light emitting of LED light source module 2 on the aluminium base board 1 of mirror surface, can improve the luminous effect of LED light source module, simultaneously high reflection printing ink layer also can reflect the heat that produces when some LED light source module 2 are luminous, improves the radiating effect of COB light source.
Further, compared with the conventional package structure, in the present application, when the ink layer 11 is covered, a part of the mirror-surface aluminum substrate 1 is reserved and is not completely covered, that is, a first mirror-surface area 12 and a second mirror-surface area 13 are reserved in a blank, wherein the first mirror-surface area 12 is used for providing a reflection surface, and the reflection surface and the second mirror-surface area 13 provided with the LED light source module 2 are alternately arranged, in this embodiment, the first mirror-surface area 12 is square, and the second mirror-surface area 13 is circular; one side of each row of light source module all has a plane of reflection, consequently, works as when LED light source module 2 is luminous, the light of following the emergent of the side of LED light source module 2 can be through first mirror face district 12 reflects, consequently, can further strengthen the luminous efficacy of COB light source, and the reflectivity of traditional whole cover printing ink layer 11 is greater than 90%, and the base plate reflectivity that sets up the plane of reflection in this application can be greater than 98%, and then optimizes the luminous efficacy of LED street lamp.
Further, the front surface of the mirror-surface aluminum substrate 1 is further provided with a second pad 16, the second pad 16 is used for welding a piezoresistor 17, after the LED light source module 2 is packaged, glue is dispensed on the second pad 16 in a manual solder paste dispensing manner, a piezoresistor 17 is arranged on the second pad 16, and finally, the piezoresistor 17 is welded by reflow soldering so as to be firmly adhered to the mirror-surface aluminum substrate 1, and the piezoresistor 17 can prevent the LED street lamp from being damaged by surge generated by fluctuation of a power supply or a power grid when the LED street lamp is in an on-off state, wherein the surge generates on the LED chip inside the LED light source module 2.
Specifically, please continue to refer to fig. 4, the LED light source module 2 includes an LED chip, the LED chip is welded on the first bonding pad 14 and covered with a fluorescent glue layer 20, a dam glue 21 is arranged around the fluorescent glue layer 20, an optical lens 22 is arranged above the fluorescent glue layer 20, and an optical lens 22 is arranged above the fluorescent glue layer 20, so that light emitted by the LED chip is refracted through the optical lens 22, the light emitting range of the LED chip is enlarged, and the light emitting effect of the LED light source module 2 is optimized.
Further, transparent silica gel 23 is filled between the fluorescent adhesive layer 20 and the optical lens 22, after the fluorescent adhesive layer 20 and the optical lens 22 are fixed, the transparent silica gel 23 is filled between the fluorescent adhesive layer 20 and the optical lens 22, and the refractive index of the transparent silica gel 23 is 1.35-1.45, which is 1.0002 higher than that of air, so that the light transmission loss of air can be effectively avoided by filling the transparent silica gel 23, and the light emitting efficiency of the LED light source module 2 is further improved; in addition, the second mirror surface region 13 is the leaked high-reflection aluminum mirror surface substrate 1, and the substrate mirror surface is easily corroded by impurities in the air and sulfur and chlorine elements to damage the substrate mirror surface, so that the second mirror surface region 13 can be effectively protected by filling the transparent silica gel 23.
Further, referring to fig. 5, a BT layer 18 is further disposed on the mirror-surface aluminum substrate 1, the BT layer 18 is located at the lower end of the ink layer 11, the BT layer 18 is located at two sides of the second mirror-surface region 13, a gold wire electrically connected to the LED chip is disposed in the BT layer 18, so as to form a circuit 19 in the mirror-surface aluminum substrate 1; when the LED chip works, the generated heat is directly conducted away through the second mirror area 13, i.e. the mirror-surface aluminum substrate 1, and the functional circuit in the BT layer 18 is not conducted with the mirror-surface aluminum substrate 1, so that the thermoelectric separation effect can be achieved.
Further, referring to fig. 4, the front surface of the mirror-surface aluminum substrate 1 is further provided with a quick connector 10, when the piezoresistor 17 is placed on the second pad 16, a device of the quick connector 10 is also placed on the mirror-surface aluminum substrate 1, the device is soldered by reflow soldering, and the quick connector 10 replaces a traditional electric soldering iron to solder a wire, so that the direct wire assembly is facilitated, and the assembly efficiency is further improved.
Further, the back of the mirror aluminum substrate 1 is provided with the radiating fins 3, and heat generated by the LED light source module 2 during operation can be timely discharged through the radiating fins 3, so that the service life of the COB light source can be effectively prolonged, and the performance of the LED street lamp is optimized.
Additionally, the utility model provides a LED street lamp, this LED street lamp include as above high luminous efficiency's COB light source, because the above has carried out detailed description to this high luminous efficiency's COB light source, no longer give consideration to here.
To sum up, the COB light source with high luminous efficiency and the LED street lamp provided by the utility model have the advantages that the COB light source with high luminous efficiency comprises a mirror aluminum substrate, and the front surface of the mirror aluminum substrate is covered with an ink layer; the ink layer is reserved with a plurality of first mirror surface areas and a plurality of second mirror surface areas, the first mirror surface areas form a first mirror surface array, the second mirror surface areas form a second mirror surface array, and each row of first mirror surface areas in the first mirror surface array and each row of second mirror surface areas in the second mirror surface array are arranged alternately; a first bonding pad is arranged at the edge of each second mirror surface area, and an LED light source module is arranged on each first bonding pad; the front of the mirror surface aluminum substrate is also provided with a second pad, the second pad is welded with a piezoresistor, and the packaging structure for the COB light source and the LED light source module is improved by additionally arranging a reflecting surface on the substrate, so that the luminous efficiency of the COB light source is effectively improved, and the luminous effect of the LED street lamp is optimized.
It should be understood that equivalent alterations and modifications can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such alterations and modifications should fall within the scope of the appended claims.
Claims (8)
1. A COB light source with high luminous efficiency is characterized by comprising a mirror aluminum substrate, wherein the front surface of the mirror aluminum substrate is covered with an ink layer; the ink layer is reserved with a plurality of first mirror surface areas and a plurality of second mirror surface areas, the first mirror surface areas form a first mirror surface array, the second mirror surface areas form a second mirror surface array, and each row of the first mirror surface areas in the first mirror surface array and each row of the second mirror surface areas in the second mirror surface array are alternately arranged; a first bonding pad is arranged at the edge of each second mirror surface area, and an LED light source module is arranged on each first bonding pad; the front surface of the mirror surface aluminum substrate is also provided with a second pad, and the second pad is welded with a piezoresistor.
2. The COB light source with high light-emitting efficiency according to claim 1, wherein the LED light source module comprises an LED chip, the LED chip is welded on the first bonding pad and covered with a fluorescent glue layer, a dam glue is arranged around the fluorescent glue layer, and an optical lens is arranged above the fluorescent glue layer.
3. The COB light source with high luminous efficiency according to claim 2, wherein a transparent silica gel is filled between the fluorescent glue layer and the optical lens.
4. The COB light source with high luminous efficiency as claimed in claim 1, wherein the first mirror surface area is square, and the second mirror surface area is circular.
5. The COB light source with high luminous efficiency according to claim 1, wherein a BT layer is further arranged on the mirror aluminum substrate and is located at the lower end of the ink layer.
6. The COB light source with high luminous efficiency as claimed in claim 1, wherein the mirror-surface aluminum substrate is provided with heat dissipation fins on its back surface.
7. The COB light source with high luminous efficiency as claimed in claim 1, wherein the front surface of the mirror aluminum substrate is further provided with a quick connector.
8. An LED street lamp, comprising the COB light source with high luminous efficiency as claimed in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921684392.2U CN210576019U (en) | 2019-09-30 | 2019-09-30 | COB light source with high luminous efficiency and LED street lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921684392.2U CN210576019U (en) | 2019-09-30 | 2019-09-30 | COB light source with high luminous efficiency and LED street lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210576019U true CN210576019U (en) | 2020-05-19 |
Family
ID=70662006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921684392.2U Active CN210576019U (en) | 2019-09-30 | 2019-09-30 | COB light source with high luminous efficiency and LED street lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210576019U (en) |
-
2019
- 2019-09-30 CN CN201921684392.2U patent/CN210576019U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5851445B2 (en) | LIGHT EMITTING ELEMENT, LIGHT EMITTING ELEMENT MANUFACTURING METHOD, AND LIGHTING DEVICE | |
| CN111457260A (en) | Light emitting assembly and manufacturing method thereof | |
| TWI606616B (en) | Light emitting device package | |
| US20180226552A1 (en) | Light-emitting element package | |
| US9929329B2 (en) | Light emitting device package | |
| KR102498211B1 (en) | Car lamp using semiconductor light emitting device | |
| JP2006245084A (en) | Light-emitting device | |
| WO2024016823A1 (en) | Light-emitting module and plant lighting lamp | |
| EP2346103A2 (en) | Light emitting device and backlight unit | |
| KR100699161B1 (en) | Light emitting device package and method for manufacturing the same | |
| KR102513351B1 (en) | Car lamp using semiconductor light emitting device | |
| TWI573245B (en) | Light emitting diode light bar | |
| CN210576019U (en) | COB light source with high luminous efficiency and LED street lamp | |
| KR20120047061A (en) | Light emitting device array, and backlight unit and display having the same | |
| KR102486969B1 (en) | Vehicle lamp using semiconductor light emitting device | |
| US20170069806A1 (en) | Light-emitting element package | |
| CN210398448U (en) | Four-side light-emitting light source with large light-emitting angle and backlight module | |
| KR20100093950A (en) | Light emitting device package | |
| CN211182241U (en) | Ultraviolet L ED packaging device | |
| CN209912892U (en) | COB light source | |
| CN211017119U (en) | Double-side packaged light-emitting module | |
| CN202585529U (en) | LED chip COB packaging structure, and lamp strip thereof | |
| CN114220899A (en) | Mini LED lamp bead, backlight module and display device | |
| CN102386177A (en) | Light-emitting diode (LED) lamp | |
| CN104319337A (en) | Substrate-free LED device and manufacturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |