CN202674897U

CN202674897U - A white light LED light source module

Info

Publication number: CN202674897U
Application number: CN2012202184487U
Authority: CN
Inventors: 吴加杰
Original assignee: TAIZHOU SAILONG ELECTRONIC TECHNOLOGY Co Ltd
Current assignee: TAIZHOU SAILONG ELECTRONIC TECHNOLOGY Co Ltd
Priority date: 2012-05-16
Filing date: 2012-05-16
Publication date: 2013-01-16
Anticipated expiration: 2022-05-16

Abstract

The utility model discloses a white light LED light source module, comprising a module housing provided with an opening, a circuit board disposed in the module housing, LED chips disposed on the circuit board in an array mode, chip packaging adhesive packing the LED chips on the circuit board in the array mode, a high-light transmittance light-delivering panel covering the opening of the module housing, and a fluorescent substance layer coated on the surface, which is closer to the LED chips, of the high-light transmittance light-delivering panel. The circuit board is provided with a plurality of grooves; an electronic circuit is formed through wiring on the grooves; the electronic circuit is matched with surface mounted devices for forming a printed circuit board with special functions and electrical connection; the LED chips are adhered to the bottom of the grooves; and electrode leads of the LED chips, the electronic circuit and the surface mounted devices form a return circuit. The model is characterized by uniform luminance, high brightness, high luminous efficiency, compact structure, simple manufacture technology, easy use of following design, and long service lifetime.

Description

White light LED light source module

Technical field

The utility model belongs to the LED lighting technical field, relates to a kind of light source module, relates in particular to the white light LED light source module of a kind of COB of employing technology and array interconnection.

Background technology

COB (Chip On Board) led light source is a plurality of LED (light emitting diode) chip, directly is bonded on the substrate, by gold thread or bump a plurality of chips and power supply is coupled together; Cover transparent silica gel at chip again, both chip and gold thread played a protective role, again because of the refraction coefficient of silica gel greater than 1, thereby increase the light extraction efficiency of LED.If expect white light source, answer mixed fluorescent powder to reaching the white light effect in the transparent silica gel.The advantage of COB light source is: 1, light-emitting area is large, can as required, do infinitely greatly in theory; 2, thermal conductivity is good, and the thermal conductivity of aluminium base is very high, can effectively derive the heat energy that LED produces when luminous; 3, at the bottom of the cost, because there is not the led chip package casing, can reduce the expense of material and processing; 4, make simply.White light LED lamp of the prior art generally is that the led chip that produces blue light is close to phosphor layer and is encapsulated in the confined space with the formation white light LEDs.Chinese patent discloses the white light LED light source module that one kind of CN201373272 adopts COB technology and array interconnection, it is characterized in that comprising: have opening module housing, be arranged on module housing inside circuit board, be arranged on led chip array on the circuit board, high printing opacity light-emitting plate that the led chip array package is hidden at the chip package glue on the described circuit board, with the opening of described module housing, be coated with the lip-deep phosphor layer that is located on the high printing opacity light-emitting plate more near described led chip with array format.Form an integral body owing to producing blue-light LED chip and phosphor layer, both can't be separated from each other, the uniformity of fluorescent material is difficult to control, and then causes the brightness uniformity of the last white light LEDs finished product that forms poor, and is difficult to adjust afterwards in the finished product manufacturing colour temperature of finished product white light LED lamp; Because the total reflection principle (SellLaw) when light is walked between two kinds of different mediums, the phosphor layer light extraction efficiency is limited, the light angle of the light that sends when chip is during greater than the critical angle of phosphor layer and Air Interface, this part light will can't be derived by total reflection, this part light, through repeatedly reflecting and refraction (if fluorescent powder grain is arranged) in the phosphor layer the inside, do not fail to enter into air if be less than critical angle, heat energy will be changed into and thereby to lose light extraction efficiency low, and heat energy impels the operating temperature of fluorescent material higher, finally accelerated the aging attenuation process of fluorescent material, reduce the life-span of fluorescent material, finally affected the service life of whole white light LED lamp.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned deficiency, provides that a kind of brightness is even, brightness is high, light extraction efficiency is high, compact conformation, simple, the follow-up design of manufacture craft are easy to use, the white light LED light source module of long service life.

The utility model is achieved by the following technical solution:

White light LED light source module, comprise the module housing with opening, be arranged on the circuit board of module housing inside, be arranged on led chip on the circuit board with array format, with the chip package glue of led chip array package on described circuit board, the high printing opacity light-emitting plate that the opening of described module housing is hidden, be coated with the lip-deep phosphor layer that is located at more close described led chip on the high printing opacity light-emitting plate, described circuit board is provided with some grooves, form electronic circuit by wiring on it, this electronic circuit cooperates formation to have the printed circuit board (PCB) of specific function and electrical connection with surface mount elements on being arranged at circuit board; Described led chip is bonded in the bottom of groove, and its contact conductor and electronic circuit and surface mount elements form the loop.

Described groove is arranged on the circuit board twist.

The inner surface of described module housing, the surface of described circuit board are coated with the high material layer of reflecting rate.

Described module housing and circuit board are made by Heat Conduction Material, and are processed with above the module housing for heat radiation and hard-wired hole slot.

The utility model compared with prior art has following beneficial effect: brightness is even, brightness is high, light extraction efficiency is high, compact conformation, simple, the follow-up design of manufacture craft are easy to use, long service life.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment,

Fig. 2 is the structure cutaway view of circuit board among the utility model embodiment,

Fig. 3 is the structure top view of circuit board among the utility model embodiment.

Sequence number among the figure: 1, module housing, 2, circuit board, 3, led chip, 4, packaging plastic, 5, high printing opacity light-emitting plate, 6, phosphor layer, 7, groove.

The specific embodiment

The utility model is described in further detail below in conjunction with the drawings and specific embodiments.

According to Fig. 1, Fig. 2 and shown in Figure 3, a kind of white light LED light source module of the utility model, comprise the module housing 1 with opening, be arranged on the circuit board 2 of module housing 1 inside, be arranged on led chip 3 on the circuit board with array format, with the packaging plastic 4 of led chip 3 array package on described circuit board 2, the high printing opacity light-emitting plate 5 that the opening of described module housing 1 is hidden, be coated with the lip-deep phosphor layer 6 that is located at more close described led chip 3 on the high printing opacity light-emitting plate 5, described circuit board 2 is provided with some grooves 7, described groove 7 is arranged on the circuit board 2 twist, form electronic circuit by wiring on it, this electronic circuit cooperates formation to have the printed circuit board (PCB) of specific function and electrical connection with surface mount elements on being arranged at circuit board 2; Described led chip 3 is bonded in the bottom of groove 7, and its contact conductor and electronic circuit and surface mount elements form the loop; The surface of the inner surface of described module case 1, described circuit board 2 is coated with the high material layer of reflecting rate; Described module housing 1 and circuit board 2 are made by Heat Conduction Material, and are processed with above the module housing 1 for heat radiation and hard-wired hole slot.

Embodiment is just for the ease of understanding the technical solution of the utility model; do not consist of the restriction to the utility model protection domain; every interior any simple modification, equivalent variations and modification of perhaps according to technical spirit of the present utility model above scheme being done that does not break away from technical solutions of the utility model all still belongs within the utility model protection domain.

Claims

1. white light LED light source module, comprise the module housing ⑴ with opening, be arranged on the circuit board ⑵ of module housing ⑴ inside, be arranged on led chip ⑶ on the circuit board ⑵ with array format, with the packaging plastic ⑷ of led chip ⑶ array package on described circuit board ⑵, the high printing opacity light-emitting plate ⑸ that the opening of described module housing ⑴ is hidden, be coated with the lip-deep phosphor layer ⑹ that is located at more close described led chip ⑶ on the high printing opacity light-emitting plate ⑸, it is characterized in that: described circuit board ⑵ is provided with some groove ⑺, form electronic circuit by wiring on it, this electronic circuit cooperates formation to have the printed circuit board (PCB) of specific function and electrical connection with surface mount elements on being arranged at circuit board ⑵; Described led chip ⑶ is bonded in the bottom of groove ⑺, and its contact conductor and electronic circuit and surface mount elements form the loop.

2. white light LED light source module according to claim 1, it is characterized in that: described groove ⑺ is arranged on the circuit board ⑵ twist.

3. white light LED light source module according to claim 1 and 2, it is characterized in that: the surface of the inner surface of described module housing ⑴, described circuit board ⑵ is coated with the high material layer of reflecting rate.

4. white light LED light source module according to claim 1 and 2, it is characterized in that: described module housing ⑴ and circuit board ⑵ are made by Heat Conduction Material, and are processed with above the module housing ⑴ for heat radiation and hard-wired hole slot.

5. white light LED light source module according to claim 3, it is characterized in that: described module housing ⑴ and circuit board ⑵ are made by Heat Conduction Material, and are processed with above the module housing ⑴ for heat radiation and hard-wired hole slot.