CN203434198U

CN203434198U - LED support with double face silver-plated substrate

Info

Publication number: CN203434198U
Application number: CN201320524725.1U
Authority: CN
Inventors: 叶德龙
Original assignee: ZHEJIANG JIAHONG ELECTRONIC TECHNOLOGY Co Ltd
Current assignee: ZHEJIANG JIAHONG ELECTRONIC TECHNOLOGY Co Ltd
Priority date: 2013-08-27
Filing date: 2013-08-27
Publication date: 2014-02-12
Anticipated expiration: 2023-08-27

Abstract

An LED support with a double face silver-plated substrate is used for installing an LED lamp bead and comprises a substrate, the front and back faces of which are silver-plated. The substrate is made of a semitransparent aluminium nitride ceramic material; the front face of the substrate is provided with an LED packaging chamber for LED lamp bead welding. The two sides of the packaging chamber are provided with positive and negative welding points. The periphery of the substrate is packaged with a light stop ring for increasing light-emitting amount. Compared with the prior art, the LED support is silver-plated on the front and back face, so that the LED reflection light is guaranteed to reflect back and the light is not absorbed by the substrate. Since an LED is a five-face luminophor; except the front face, light at the rest four faces are side glowing; light irradiates to an LED outer ring; since glue is used as the stop ring of the outer ring of an ordinary COB packaging mode and the glue is irregular and easy to absorb light and refraction, the light is emitted unfavorably; and since the regular 45 degree-inclination aluminium oxide box dam is utilized in the LED support and the aluminium oxide has high reflectivity, light-emitting effect is greatly improved.

Description

The LED support that double-sided substrate is silver-plated

Technical field

The utility model relates to LED street lamp lamp pearl mounting bracket technical field, the particularly silver-plated LED support of a kind of double-sided substrate.

Background technology

Main SMD by little wattage of LED support in the market, high-power integrated form, these two kinds of supports adopt copper and poly-terephthalate p-phenylenediamine (PPD) (PPA) plastic material to synthesize, COB (chip On board) support, and conventional employing aluminium is made and ceramic substrate is made.

Early, major defect is that it is bad that product is withstand voltage, easily causes electric leakage in encapsulation process, and its LED was lost efficacy, and operational environment is had relatively high expectations, and relative cost is higher to the SMD and high-power integrated support listing of little wattage.

COB support is the main flow trend in LED illumination application, there are good economy and changeability to be applicable to the market demand, but common aluminium base COB support still has the former withstand voltage bad common fault, another one shortcoming be exactly COB support be plane formula, the efficiency of light energy utilization is not as good as conventional stent.And aluminium brackets generally adopts specular aluminium as reflector layer, reflecting effect is not good yet.

Adopt ceramic substrate support, solved problem of withstand voltage, can greatly improve product weatherability, but, conventional ceramic substrate thermal conductivity can not show a candle to aluminium and copper, and the thermal conductivity 15-25W/M.K fine copper of pottery (aluminium oxide) is that 398W/M.K fine aluminium is 236W/M.K, can improve the junction temperature of LED, affect the life-span of LED light source, so market utilization rate is not high.

Utility model content

The deficiency existing for prior art, the LED support that provides a kind of double-sided substrate silver-plated is provided the purpose of this utility model.

The technical solution of the utility model is achieved in that

The LED support that a kind of double-sided substrate is silver-plated, for mounted LED lamp bulb, comprise that tow sides have silver-plated substrate, described substrate adopts translucent aluminium nitride ceramics material, described substrate front side is provided with the LED package cavity connecing for the bead weld of LED lamp, the both sides of package cavity arrange positive and negative solder joint, and the periphery of described substrate is packaged with the light back-up ring for increasing amount of light.

Preferably, described light back-up ring is the box dam that is 45 degree around one week gradient of package cavity.

Preferably, described box dam adopts the aluminium oxide ceramics of high reflectance.

Preferably, described substrate front side is provided with LED light lens, the transparent colloid of space-filling for dispelling the heat in described light lens.

Compared with prior art, the utility model has following beneficial effect:

1, the silver-plated LED support of double-sided substrate of the present utility model, front-back two-sided silver-plated by support is carried out, because aluminium nitride is trnaslucent materials, guaranteed the catoptrical passback of LED, can not absorbed by substrate.Because LED is 5 planar luminous bodies, except front, the luminous energy of all the other 4 faces is all lateral emitting, the direction that light irradiates is on LED outer ring, and the outer ring of common COB packing forms uses glue as back-up ring, the irregular easy absorption light of glue type and refraction, be unfavorable for bright dipping, it is the aluminium oxide box dam of 45 degree that the utility model adopts regular pattern composite gradient, and aluminium oxide has high reflectance, has greatly improved and light effect;

2, the silver-plated LED support of double-sided substrate of the present utility model, has thermal conductivity good, the feature such as high pressure resistant, high temperature resistant, resistance to chemical attack.

Accompanying drawing explanation

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is the silver-plated LED support structure chart of double-sided substrate of the present utility model;

Fig. 2 is the vertical view of this Fig. 1;

Fig. 3 is the light back-up ring structure chart in the utility model.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.

Please refer to accompanying drawing 1-3, the LED support that a kind of double-sided substrate is silver-plated, for mounted LED lamp bulb, comprise that tow sides have silver-plated substrate 1, front silver coating 2 and reverse side silver coating 3, the surface of substrate 1 is square or rectangle, its profile need to arrange according to packaged LED lamp pearl situation, substrate 1 surface of the present embodiment is square, described substrate 1 adopts translucent aluminium nitride ceramics material, LED light can see through translucent aluminium nitride ceramics, therefore on substrate two sides, plate the silver coating for light reflection, can well avoid luminous energy in a large number by base, 1 absorbs the dim light causing, described substrate 1 front is provided with the LED package cavity 4 connecing for the bead weld of LED lamp, the both sides of package cavity 4 arrange positive and negative solder joint 5, positive and negative solder joint 5 can be arranged on the diagonal position of square substrate 1, also can be arranged on opposite side position, guaranteed that LED lamp pearl luminous site is in the middle of substrate 1, LED is five planar luminous bodies, and except front, the luminous energy of all the other four faces is all lateral emitting, has encapsulated the light back-up ring 6 for increasing amount of light in the periphery of described substrate 1, makes LED light-ray condensing to same directional divergence, to be applicable to different installation occasions, the present embodiment preferred light back-up ring 6 be the box dam that is 45 degree around 4 one weeks gradients of package cavity, the gathering of the light total number that the light back-up ring 6 of annular is dispersed four faces of LED level is vertical divergence direction, the described aluminium oxide ceramics that adopts high reflectance as the light back-up ring 6 of box dam, has improved light extraction efficiency greatly, described substrate 1 front is provided with LED light lens 7, and light lens 7 are located at described substrate 1 top, and the interior space-filling of described light lens 7 is for the transparent colloid 8 that dispels the heat, thus the useful life that very large degree increase can LED lamp pearl.

Comprehensive above-mentioned structure of the present utility model is known, and the LED support that double-sided substrate of the present utility model is silver-plated is front-back two-sided silver-plated by support is carried out, because aluminium nitride is trnaslucent materials, has guaranteed the catoptrical passback of LED, can not absorbed by substrate.Because LED is five planar luminous bodies, except front, the luminous energy of all the other 4 faces is all lateral emitting, the direction that light irradiates is on LED outer ring, and the outer ring of common COB packing forms uses glue as back-up ring, the irregular easy absorption light of glue type and refraction, be unfavorable for bright dipping, it is the aluminium oxide box dam of 45 degree that the utility model adopts regular pattern composite gradient, and aluminium oxide has high reflectance, has greatly improved and light effect; Meanwhile, the LED support that double-sided substrate of the present utility model is silver-plated, has thermal conductivity good, the feature such as high pressure resistant, high temperature resistant, resistance to chemical attack.

The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.

Claims

1. the LED support that double-sided substrate is silver-plated, for mounted LED lamp bulb, it is characterized in that, comprise that tow sides have silver-plated substrate, described substrate adopts translucent aluminium nitride ceramics material, described substrate front side is provided with the LED package cavity connecing for the bead weld of LED lamp, and the both sides of package cavity arrange positive and negative solder joint, and the periphery of described substrate is packaged with the light back-up ring for increasing amount of light.

2. the silver-plated LED support of double-sided substrate as claimed in claim 1, is characterized in that, described light back-up ring is the box dam that is 45 degree around one week gradient of package cavity.

3. the silver-plated LED support of double-sided substrate as claimed in claim 2, is characterized in that, described box dam adopts the aluminium oxide ceramics of high reflectance.

4. the silver-plated LED support of double-sided substrate as claimed in claim 1, is characterized in that, described substrate front side is provided with LED light lens, the transparent colloid of space-filling for dispelling the heat in described light lens.