CN203218332U

CN203218332U - High illuminance LED light source module with high reflectivity

Info

Publication number: CN203218332U
Application number: CN 201320221925
Authority: CN
Inventors: 蔡国清
Original assignee: XINMEIHUA PRECISION MACHINE FACTORY CO Ltd
Current assignee: XINMEIHUA PRECISION MACHINE FACTORY CO Ltd
Priority date: 2013-04-27
Filing date: 2013-04-27
Publication date: 2013-09-25
Anticipated expiration: 2023-04-27

Abstract

The utility model relates to a high illuminance LED light source module with high reflectivity, which comprises an electrically insulated substrate, at least one LED crystal grain, a layer of composite metal film and a fluorescent powder layer, wherein a circuit layer is electroplated on the substrate, and relevant circuit patterns are etched on the substrate; the at least one LED crystal grain is directly welded at a corresponding position on the circuit layer without producing additional pins; the bottom part of the composite metal film is an insulation surface, the insulation surface is adhered on the circuit layer relative to parts uncovered by the LED crystal grains, and the composite metal film comprises a metal layer; and the fluorescent powder layer is arranged on the LED crystal grains and the composite metal film for packaging the LED crystal grains between the fluorescent powder layer and the substrate. According to the LED light source module provided by the utility model, since the non-oxidative composite metal film is adhered on the circuit layer of the substrate, the problems that the light source is absorbed massively or the reflectivity is decreased due to oxidation caused by long term use of the composite metal film can not be caused, and the high reflectivity and high illuminance are always kept.

Description

The high illuminance LED light source module of high reflectance

Technical field

The utility model relates to a kind of led light source module that reduces and causes the decline structure of situation of look, especially a kind of high illuminance LED light source module of high reflectance through long-time the use.

Background technology

The structure of the led light source module of prior art please refer to shown in Figure 3, wherein this led light source module comprises: a substrate 60, these substrate 60 tops are electroplate with a metallic circuit layer 62, this metallic circuit layer 62 is in order to arrange at least one LED crystal grain 64, each LED crystal grain 64 makes it solid brilliant on this metallic circuit layer 62 in the mode of routing, and again with 66 encapsulation of a fluorescent bisque, make each LED crystal grain 64 be packaged between this fluorescent bisque 66 and the substrate 60; Said structure, after these metallic circuit layer 62 energisings, each LED crystal grain 64 of its top namely can send light (arrow refers to radiation direction among the figure), the light that sends by with this fluorescent bisque 66 in the phosphor powder of special color kind excite mutually and send the light source of predetermined color kind, and the part light source can directly transmit this fluorescent bisque among provocative reaction, the light source of another part then can this metal conducting layer 62 of reflected back after again this fluorescent bisque 66 of reflected back continue provocative reactions, circular responses like this.

Said structure is after using for a long time, and this metal conducting layer can begin to produce the reaction of oxidation, and then produces its surface reflectivity and reduce, and the problem that material goes bad takes place etc. the situation that begins to absorb light source again or because of the oxidation blackening.

The utility model content

The purpose of this utility model is for solving the problems referred to above of prior art, a kind of high illuminance LED light source module of high reflectance is proposed in the utility model, it can avoid causing circuit layer generation oxidation on its substrate because of long-term the use, and then makes the light source that sends produce the situation that look declines.

For reaching above-mentioned purpose, the utility model proposes a kind of high illuminance LED light source module of high reflectance, comprise: a substrate that is electrically insulated be electroplate with a circuit layer on this substrate, and etching has the interlock circuit figure; At least one LED crystal grain is directly welded in position corresponding on this circuit layer in the mode that does not need additionally to produce pin; One deck composite metal film, its bottom is an insulating surfaces, this insulating surfaces pastes on the circuit layer that does not cover with respect to this LED crystal grain, and this composite metal film comprises a metal level; And a fluorescent bisque, be arranged at each LED crystal grain and composite metal film top, in order to encapsulate each LED crystal grain between this fluorescent bisque and substrate.

The beneficial effects of the utility model are: by attach a kind of composite metal film that can not produce oxidation above the circuit layer of substrate, reflex to the light of this composite metal film when making each LED crystal grain luminous light source and this fluorescent bisque provocative reaction, can because of composite metal film use for a long time cause oxidation after, and a large amount of problems that absorb light sources or reflectivity reduction of generation, its reflectivity is higher, and illumination is also higher.

Description of drawings

Fig. 1 is schematic perspective view of the present utility model.

Fig. 2 is schematic cross-section of the present utility model.

Fig. 3 is the structural representation of the led light source module of prior art.

[main element symbol description]

10 substrates, 12 circuit layers

14 LED crystal grain, 16 composite metal films

18 fluorescent bisques, 60 substrates

62 metallic circuit layers, 64 LED crystal grain

66 fluorescent bisques.

Embodiment

Now form with regard to the structure of this case, and effect and the advantage that can produce, conjunction with figs. exemplifies preferred embodiment and is described in detail as follows.

Please refer to Fig. 1 and Fig. 2, the high illuminance LED light source module of high reflectance of the present utility model comprises:

A substrate 10, this substrate 10 is the material that is electrically insulated; Wherein this substrate 10 is ceramic material;

A circuit layer 12, it is plated on the one side of this substrate 10, and etches the interlock circuit figure with engraving method; Wherein this circuit layer 12 is the copper metal material; The preferably after this substrate 10 is simultaneously electroplated copper metal layer prior to it, after covering via the light shield with circuitous pattern, forms this circuit layer 12 after making copper metal layer etching on the substrate in the mode of acid etching;

At least one LED crystal grain 14 is directly welded in this circuit layer 12 on corresponding position with each LED crystal grain 14 in the mode that does not need additionally to produce pin with crystal covering type eutectic method;

One deck composite metal film 16, its bottom is an insulating surfaces, pastes on the circuit layer 12 that does not cover with respect to this LED crystal grain 14 with this insulating surfaces; This composite metal film 16 is because investing a metal level wherein with its folder with transparent membrane, so this metal level can be because of the oxidation variable color; The preferably, be preset with the hole of a plurality of ccontaining LED crystal grain 16 on this composite metal film 16, when this composite metal film 16 is fitted with this circuit layer 12, only need its corresponding LED crystal grain 14 of each aligned, this composite metal film 16 can be fitted in not on the circuit layer 12 that is covered by this LED crystal grain 14; This composite metal film 16 of preferably with resin-bonding on this circuit layer 12; Wherein comprise a metal level in this composite metal film 16, this metal level is gold layer, tin layer or silver layer;

A fluorescent bisque 18, be arranged at each LED crystal grain 14 and composite metal film 16 tops, in order to encapsulating each LED crystal grain 14 between this fluorescent bisque 18 and substrate 10, and excite mutually and produce the light source of predetermined color kind in order to the light source that produces when the energising with this LED crystal grain 14; The preferably, this fluorescent bisque 18 is to be mixed and made into by resin and phosphor powder.

Please refer to Fig. 2, said structure, after these circuit layer 12 energisings, send light after making each LED crystal grain 14 of its top switch on, the light that sends by with this fluorescent bisque 18 in the phosphor powder of special color kind excite mutually and send the light source (light source that sends as the LED crystal grain of blueness of predetermined color kind, via and yellow fluorescent bisque between excite mutually, make the final light source that sends to become white light source), and the part light source can directly transmit this fluorescent bisque 18 in provocative reaction, the light source of another part then can penetrate this fluorescent bisque 18 after these fluorescent bisque 18 continuation provocative reactions of reflected back behind this composite metal film 16 of reflected back again, so circular response (arrow refers to the light source flow direction among the figure);

Because above-mentioned this composite metal film 16 is that a metal level is coated on it wherein with transparent membrane, so all light sources through this this composite metal film 16 of fluorescent bisque 18 reflected backs can be subjected to the optical characteristics of this metal level, continue provocative reaction and make light source be returned this fluorescent bisque 18 by this metal layer reflection; Because this metal level is invested wherein by transparent membrane folder, so this metal level can not contact with air yet, can be because of the oxidation variable color yet;

So, these composite metal film 16 cooperated with LED crystal grain 14 long-life characteristics, can not cause its metal level oxidation because of long-time the use, and the light source or the problem of reflectivity variation that cause this metal level to begin to absorb by this composite metal film 16 of fluorescent bisque 18 reflected backs take place.

The utility model proposes a kind of a kind of led light source modular structure that can not produce the composite metal film of oxidation that above the circuit layer of substrate, attaches, improve existing led light source module and caused circuit layer generation oxidation on its substrate because of long-term the use, and then made the light source that sends produce the situation that look declines.

In sum, the design of consideration of this case hommization, quite realistic demand.Its concrete improvement has disappearance now, obviously has outstanding substantive distinguishing features compared to prior art, have the enhancement of effect really, and non-being easy to is reached.This case disclosed or was exposed on domestic and the external document and market, had met patent statute.

Above-listed detailed description is specifying at a kind of possible embodiments of the present utility model, but this embodiment is not in order to limit claim of the present utility model, allly do not break away from the equivalence that the utility model skill spirit done and implement or change, all should be contained in the application's the claim.

Claims

1. the high illuminance LED light source module of a high reflectance is characterized in that, comprises:

A substrate that is electrically insulated is electroplate with a circuit layer on this substrate, etching has the interlock circuit figure on this circuit layer;

At least one LED crystal grain, described LED crystal grain is directly welded in position corresponding on this circuit layer in the mode that does not need additionally to produce pin;

One deck composite metal film, its bottom is an insulating surfaces, this insulating surfaces pastes on the circuit layer that this LED crystal grain does not cover, and this composite metal film includes the metal level that an energy is reflected the light that exposes to this composite metal film; And

A fluorescent bisque, be arranged at each LED crystal grain and composite metal film the top, and with each LED die package between this fluorescent bisque and substrate.

2. the high illuminance LED light source module of high reflectance as claimed in claim 1, it is characterized in that: this substrate is the ceramic substrate of ceramic material.

3. the high illuminance LED light source module of high reflectance as claimed in claim 1, it is characterized in that: this circuit layer is the copper circuit layer of copper metal material.

4. the high illuminance LED light source module of high reflectance as claimed in claim 1, it is characterized in that: this composite metal film also includes a hyaline layer, and this hyaline layer is covered in described layer on surface of metal to avoid or to slow down the oxidation of metal level.

5. the high illuminance LED light source module of high reflectance as claimed in claim 1, it is characterized in that: be preset with the hole of a plurality of ccontaining LED crystal grain on this composite metal film, its corresponding LED crystal grain of each aligned is so that this composite metal film fits in not on the circuit layer that is covered by this LED crystal grain.

6. the high illuminance LED light source module of high reflectance as claimed in claim 1 is characterized in that: this composite metal film with resin-bonding on this circuit layer.

7. the high illuminance LED light source module of high reflectance as claimed in claim 1 is characterized in that: this metal level is gold layer, tin layer or silver layer.

8. the high illuminance LED light source module of high reflectance as claimed in claim 1 is characterized in that: contain phosphor powder and resin in this fluorescent bisque.

9. the high illuminance LED light source module of high reflectance as claimed in claim 1, it is characterized in that: each LED crystal grain is welded on this circuit layer with crystal covering type eutectic method.