CN202660343U

CN202660343U - Large-power light-emitting diode (LED) light source based on prism-shaped module

Info

Publication number: CN202660343U
Application number: CN2012203342350U
Authority: CN
Inventors: 张盛辉
Original assignee: HENAN XINTE PHOTOELECTRIC TECHNOLOGY Co Ltd
Current assignee: HENAN XINTE PHOTOELECTRIC TECHNOLOGY Co Ltd
Priority date: 2012-07-11
Filing date: 2012-07-11
Publication date: 2013-01-09
Anticipated expiration: 2022-07-11

Abstract

The utility model discloses a large-power light-emitting diode (LED) light source based on a prism-shaped module and relates to the technical field of LED illuminating. The large-power LED light source comprises a prism-shaped solid-core metal module, wherein a circle of heat conduction base plate is pasted onto the lateral surface of the solid-core metal module in surrounding mode. The heat conduction base plate comprises a low-thermal-resistance underlayer, an insulation heat conduction layer and an electrolytic copper foil layer which are paved sequentially from inside to outside. A plurality of LED chip fixing points are distributed on the electrolytic copper foil layer, LED chips are arranged on the heat conduction base plate through the LED chip fixing points, and the outer portions of the LED chips are packaged through protection glue. The large-power LED light source is simple in structure, convenient to use, large in integral light-emitting angle, small in light loss, dual in radiating, long in service life and capable of reducing light radiation.

Description

High-power LED light source based on prismatic module

Technical field

The utility model relates to the LED lighting technical field, relates in particular to a kind of high-power LED light source based on special-shaped module.

Background technology

No matter high-power LED illumination is integrated optical source or various substrate paster light source at present, all is planar light source.When the LED lighting decoration controlled will reach certain illuminance and illuminating area, must install the optics of lens and so on additional.Yet these optics can produce decelerating effect to light source, light beam, cause certain light loss.Integrated optical source particularly, because each PN junction luminous beam has certain angle, the spacing between the integrated optical source PN junction is less, the mutual interference of light beam phase causes light loss, adds the astigmat of installing when each integrated optical source is used, and produces again light loss, can think that the light loss of integrated optical source lamp decoration is larger.Moreover because PN junction is intensive, so that monoblock integrated optical source heat gathers very much, this has brought quite high difficulty for the heat-extraction system of integrated optical source, and like this, integrated optical source is difficult to keep the work of low light attenuation state.Also because the flatness of integrated optical source, integrated optical source is difficult to and cheap reflective membrane, cover phase configuration, such as: the large power road lamp that has, in order to change illuminating area and to reach radiating condition, the light modulation shell will be opened 4-5 model, in order to reach optical effect, optics also has out 2-3 model, these have not only improved cost, and have wasted many material resources.

A desirable led light source not only will have enough illuminance, but also will accomplish bright and not dazzling effect in certain illuminating area.Simultaneously, more to consider to produce when LED is luminous heat and efflux reliability of structure and directionality.The LED illumination is commonly called as laser lighting, and the actual light that truly has is dazzling.The manufacturer is in order to overcome dazzling and to reach certain illuminating area, add astigmat on the lamp decoration that has, the frosted cover that then adds various different patterns that has, these mirrors, cover have consumed the energy of primary source, light beam, light source has directly been caused corresponding light loss, thereby affected lighting effect, reduced the due energy-saving effect of LED.

The utility model content

The technical problems to be solved in the utility model is: a kind of high-power LED light source based on prismatic module is provided, has solved the technical problems such as the loss of existing LED houselights is large, cost is high, light is dazzling, complex process, heat radiation difficulty, lighting intensity near distance.

To achieve these goals, the technical solution adopted in the utility model is: a kind of high-power LED light source based on prismatic module, comprise the real core metal module that is prismatic, and post a circle heat-conducting substrate around its side; Described substrate comprises low thermal resistance bedding course, thermal insulation layer and the electrodeposited copper foil layer of laying successively from the inside to the outside; be distributed with a plurality of led chip fixing points on the electrodeposited copper foil layer; led chip is arranged on the substrate by the led chip fixing point, and the led chip outside is by protection rubber seal dress.

The PN junction mutual spacing of each led chip is 0.3-1cm.

Have the through hole that connects module integral body along its axis direction on the described module.

Described through hole is positioned at the bore of module bottom greater than the bore on module top.

In the described through hole to outside add heat pipe or convection duct.

The top of module is provided with fixing hole, links to each other with lamp holder and radiator by fixing hole.

The beneficial effect that the utility model brings is: (1) is according to the power of PN junction and the size of luminous spacing, be set as in the distance between the PN junction on the special-shaped module: 0.3-1cm, so not only overall heat is relatively disperseed, and has reduced the light that occurs between the adjacent LED chip and disturbed, and light loss is low.(2) because PN junction is distributed on the metal curved surface module that high thermal conductivity coefficient arranged, forms the light source with large lighting angle, light can be invested a plurality of directions, has increased illuminating area, the uniform lighting effect of generation in illumination range.(3) base is connected with radiator, and have through hole in the special-shaped module, heat pipe is set in the through hole, formed so the multi-faceted outer cooling system of a cover, for the heat sink processing of high-power LED light source provides good condition, thereby improved the service life of LED.(4) because its curved surface photism, can well utilize cheaply, the reflective membrane of simplicity of design, cover carry out optical arrangement, therefore, can reach softer in required illuminating area and uniform optical effect.(5) owing to its atypia, therefore the overall volume of having dwindled high power light source, need not large and complicated lamp housing, needs only the illumination that just can realize relatively high power according to the corresponding radiator of LED power configuration, has simplified technique, has reduced cost.(6) directly encapsulate PN junction, reduced thermal resistance, replaced adopting in the planar package light source lens that light is spread, effectively solved the light loss problem that lens bring, compare with the led light source of Same Efficieney, light loss can reduce 15-30%, has effectively saved the energy.

Description of drawings

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

Wherein, 1. module, 2. substrate, 3.LED chip, 4. through hole, 5. fixing hole.

The specific embodiment

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

As shown in Figure 1, a kind of high-power LED light source based on prismatic module, comprise the real core metal module 1 that is prismatic, post a circle heat-conducting substrate 2 around the side of module 1, described substrate 2 comprises low thermal resistance bedding course, thermal insulation layer and the electrodeposited copper foil layer of laying successively from the inside to the outside, be distributed with a plurality of led chip fixing points on the electrodeposited copper foil layer, led chip 3 is array-like by the led chip fixing point and is evenly arranged on the substrate 2, and the two poles of the earth of led chip 3 link to each other with the electrodeposited copper foil layer circuit.The outside of led chip 3 is by protection rubber seal dress, and protection glue is made by curable epoxy resin or silica gel, so that the light that LED sends can transmit.In addition, the outside of whole light source is provided with transparent dust cover.

As preferably, the PN junction mutual spacing of each led chip 3 is 0.3-1cm, is preferably 0.5cm.Have the through hole 4 that connects module integral body along its axis direction on the module 1, and this through hole 4 is positioned at the bore of module 1 bottom greater than the bore on module 1 top, heat loss is convenient in this design.The top of module 1 is provided with fixing hole 5, links to each other with lamp holder and radiator by fixing hole 5.Lamp holder and radiator do not draw in the drawings.In addition, through hole 4 interior heat pipe or the convection duct of arranging are transmitted to the heat on the module 1 in the extraneous air rapidly by heat pipe or convection duct.

This led light source can be widely used in bulkhead lamp capable series.

The realization direction of the high-power module light source of LED has two: one in a word, improves substrate manufacture technique, makes special-shaped substrate, and equipment improvement drops into less; The 2nd, improve the operation track of packaging machinery, drop into larger, but from structure and aspect of performance, can be good a lot.Therefore, an optimal high-power LED light source, preferably direct encapsulation point light source forms on standardized special-shaped module.The production of special-shaped module light source, the improvement that awaits LED packaging machinery or substrate manufacture technique is upgraded, and like this, following high-power LED light source will enter each lamp decoration manufacturing enterprise at the encapsulation factory just as traditional incandescent lamp bulb.

Claims

1. the high-power LED light source based on prismatic module is characterized in that: comprise the real core metal module that is prismatic, post a circle heat-conducting substrate around its side; Described substrate comprises low thermal resistance bedding course, thermal insulation layer and the electrodeposited copper foil layer of laying successively from the inside to the outside; be distributed with a plurality of led chip fixing points on the electrodeposited copper foil layer; led chip is arranged on the substrate by the led chip fixing point, and the led chip outside is by protection rubber seal dress.

2. the high-power LED light source based on prismatic module according to claim 1, it is characterized in that: the PN junction mutual spacing of each led chip is 0.3-1cm.

3. the high-power LED light source based on prismatic module according to claim 1 and 2 is characterized in that: have the through hole that connects module integral body along its axis direction on the described module.

4. the high-power LED light source based on prismatic module according to claim 3, it is characterized in that: described through hole is positioned at the bore of module bottom greater than the bore on module top.

5. the high-power LED light source based on prismatic module according to claim 4 is characterized in that: in the described through hole to outside add heat pipe or convection duct.

6. the high-power LED light source based on prismatic module according to claim 5, it is characterized in that: the top of module is provided with fixing hole, links to each other with lamp holder and radiator by fixing hole.