CN207353288U

CN207353288U - A kind of paster LED bracket

Info

Publication number: CN207353288U
Application number: CN201721494135.3U
Authority: CN
Inventors: 胡康乐; 许辉胜; 王祖亮; 楚新; 苏哲
Original assignee: SHENZHEN GLORY SKY OPTOELECTRONIC CO Ltd
Current assignee: Xiamen Xinda Haotian Technology Co.,Ltd.
Priority date: 2017-11-10
Filing date: 2017-11-10
Publication date: 2018-05-11
Anticipated expiration: 2027-11-10

Abstract

The utility model discloses a kind of paster LED bracket, including reflector and base；Base sets cathode and anode, LED chip to be mounted on base and be connected with cathode and anode, and reflector is arranged on base, and LED chip is placed in the bottom of reflector；The reflector includes circumferentially eight reflectings surface of adjoining successively, and the angle between each reflecting surface and base is 130 degree 145 degree.The utility model can reduce light radiant flux loss, so as to improve the light extraction efficiency of LED chip.

Description

A kind of paster LED bracket

Technical field

LED encapsulation technologies field is the utility model is related to, refers in particular to a kind of paster LED bracket.

Background technology

LED（Light Emitting Diode light emitting diodes）It is a kind of solid-state semiconductor device, can converts electrical energy into Into luminous energy, with power consumption is small, spotlight effect is good, reaction speed is fast, controllability is strong, can bear impacting with high pressure, service life length And the advantages that environmental protection.

In the prior art, chip is fixed on stent by the encapsulation of LED semiconductor devices using heat-conducting glue mostly, then with gold Belong to lead conducting chip and realize that LED shines.Since the stent of fixed LED chip is vital encapsulating material, stent it is each Performance indicator directly affects the properties of encapsulation finished product, the performance of chip is played play the role of it is vital, wherein One of be embodied in the light extraction efficiency of encapsulation finished product, therefore, to improve LED light extraction efficiency, stent must have preferable light-out effect.

However, in the prior art, the patch support of LED encapsulation Shortcomings in design：The design of stent is initially examined Consider mechanical structure and processing technology aspect, and there is no more research in the design of light extraction efficiency, cause existing stent anti- Penetrate that the angle of cup and base is unreasonable, chip to go out optical channel long, produce many unnecessary total reflections, cause light radiation to be led to Amount loss, so as to cause the luminous flux loss for encapsulating finished product.

In view of this, tested through further investigation, the utility model develops a kind of paster LED branch for overcoming the defect Thus frame, this case produce.

Utility model content

The purpose of this utility model is to provide a kind of paster LED bracket, to reduce light radiant flux loss, so as to improve The light extraction efficiency of LED chip.

In order to achieve the above objectives, the solution of the utility model is：

A kind of paster LED bracket, including reflector and base；Base sets cathode and anode, LED chip to be mounted on base Upper to be connected with cathode and anode, reflector is arranged on base, and LED chip is placed in the bottom of reflector；The reflector bag Eight reflectings surface circumferentially abutted successively are included, and the angle between each reflecting surface and base is 130 degree of -145 degree.

Further, it is small anti-to include the first big reflecting surface, the first small reflecting surface, adjacent first big reflecting surface and first for reflecting surface The the first adjoining reflecting surface, second largest reflecting surface, the second adjoining of adjacent first small reflecting surface and second largest reflecting surface for penetrating face are anti- Penetrate face, the second small reflecting surface, adjacent second largest reflecting surface and the 3rd adjoining reflecting surface of the second small reflecting surface and adjacent second The neighbours of small reflecting surface and the first big reflecting surface connect reflecting surface, are integrally square, and the reflective surface area of the first big reflecting surface is equal to The reflective surface area of second largest reflecting surface, the reflective surface area of the first small reflecting surface are equal to the reflective surface area of the second small reflecting surface, and first Connect that the reflective surface area of reflecting surface is equal to neighbours, and to be more than first, second small anti-for the reflective surface area of first, second big reflecting surface The reflective surface area in face is penetrated, the reflective surface area of first, second small reflecting surface is more than the reflective surface area of first to fourth adjoining reflecting surface.

Further, base is metab.

Further, base is copper, the alloy or aluminium alloy of copper.

Further, the susceptor surface for installing LED chip sets plating reflector layer.

Further, reflector layer is electroplated as silver layer on silver coating or nickel plating.

Further, in the cathode and anode that base is set are generally aligned in the same plane.

Further, the material of reflecting surface is white plastic, ceramics or resin.

After using the above scheme, the utility model reflector includes circumferentially eight reflectings surface of adjoining successively, and each Angle between a reflecting surface and base is 130 degree of -145 degree so that LED chip goes out that optical channel is shorter, reduces LED chip Go out light total reflection, the spectrum reflecting rate of 380-800nm is more than or equal to 95%, so as to reduce light radiant flux loss, reaches and carries The effect of luminous flux is risen, so as to improve the light extraction efficiency of LED chip.

Brief description of the drawings

Fig. 1 is the top view of the utility model；

Fig. 2 is the sectional view of A-A in Fig. 1；

Fig. 3 is the sectional view of B-B in Fig. 1；

Fig. 4 is the principle of luminosity figure of the utility model.

Label declaration

1 reflecting surface 11 of reflector

First big 111 first small reflecting surface 112 of reflecting surface

The first adjoining second largest reflecting surface 114 of reflecting surface 113

Second adjoining 115 second small reflecting surface 116 of reflecting surface

3rd adjoining 117 neighbours of reflecting surface connect reflecting surface 118

2 LED chip 3 of base

4 fluorescent powder 5 of glue

Light 6,7,8.

Embodiment

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

Please refer to Fig.1 to Fig.4 a kind of described, the utility model the discloses paster LED bracket, including reflector 1 and base 2.Base 2 sets cathode and anode, is preferably, and in the cathode and anode that base 2 is set are generally aligned in the same plane, LED chip 3 mounts It is connected on base 2 with cathode and anode, realizes that LED shines, reflector 1 is arranged on base 2, and LED chip 3 is placed in reflection The bottom of cup 1.

The reflector 1 includes circumferentially adjacent eight reflectings surface 11 successively, and each reflecting surface 11 and base 2 it Between angle be 130 degree of -145 degree so that LED chip 3 goes out that optical channel is shorter, and that reduces LED chip 3 goes out light total reflection, The spectrum reflecting rate of 380-800nm is more than or equal to 95%, so as to reduce light radiant flux loss, reaches lifting luminous flux Effect, so as to improve the light extraction efficiency of LED chip 3.

In the present embodiment, reflecting surface 11 includes the reflection greatly of the first big reflecting surface 111, the first small reflecting surface 112, adjacent first The first adjoining reflecting surface 113, second largest reflecting surface 114, the adjacent first small reflecting surface 112 of 111 and first small reflecting surface 112 of face With the second of second largest reflecting surface 114 the adjoining reflecting surface 115, the second small reflecting surface 116, adjacent second largest reflecting surface 114 and the The of 3rd adjoining reflecting surface 117 of two small reflectings surface 116 and adjacent second small 116 and first big reflecting surface 111 of reflecting surface Neighbours connect reflecting surface 118, as shown in Figure 1, overall be square, the reflective surface area of the first big reflecting surface 111 is equal to second largest reflection The reflective surface area in face 114, the reflective surface area of the first small reflecting surface 112 are equal to the reflective surface area of the second small reflecting surface 116, first to Neighbours connect reflecting surface（113、115、117、118）Reflective surface area it is equal, and first, second big reflecting surface（111、114）'s Reflective surface area is more than first, second small reflecting surface（112、116）Reflective surface area, first, second small reflecting surface（112、116）'s Reflective surface area is more than first to fourth adjoining reflecting surface（113、115、117、118）Reflective surface area.

As shown in Fig. 2, the angle a between the second small reflecting surface 116 and base 2 is 133 degree, the 3rd adjoining reflecting surface 117 Angle b between base 2 is 145 degree, as shown in figure 3, the angle c between second largest reflecting surface 114 and base 2 is 145 degree, Angle d between second adjoining reflecting surface 115 and base 2 is 139 degree.Angle between eight surface of emissions 11 and base 2 It could be provided as identical, may be set to be difference.

In the present embodiment, base 2 is metab, can be copper, the alloy or aluminium of copper for electricity, the good conductor of heat Alloy.2 surface of base for installing LED chip 3 sets plating reflector layer, and plating reflector layer can be silver in silver coating or nickel plating Layer.The material of reflecting surface 11 is white plastic, ceramics or resin.

As shown in figure 4, LED chip 3 is placed in the bottom of reflector 1, and glue 4 is encapsulated in reflector 1, mixed in glue 4 There is fluorescent powder 5, LED chip 3 is shone by excitated fluorescent powder 5, and fluorescent powder 5 shines from all directions.The refractive index n of glue 4 is 1.42-1.57, has the angle of total reflection, when the refractive index n of glue 4 is 1.42, the angle of total reflection is from optically denser medium to optically thinner medium Arcsin（1/1.42）, corresponding angle of tabling look-up is 44.767 degree, similarly, when the refractive index n of glue 4 is 1.57, reflector 1 Angle between each reflecting surface 11 and base 2 is 130 degree of -145 degree so that light 6,7,8 as shown in Figure 4 passes through reflection The wall of cup of cup 1 can destroy the angle of total reflection of glue 4 completely, so that fluorescent powder 5 shines to the luminous energy of the wall of cup of reflector 1 Directly go out, reduce light goes out light path.

The above is only the preferred embodiment of the present invention, not to the limitation of this case design, all setting according to this case The crucial equivalent variations done of meter, each fall within the protection domain of this case.

Claims

A kind of 1. paster LED bracket, it is characterised in that：Including reflector and base；Base sets cathode and anode, LED chip It is mounted on base and is connected with cathode and anode, reflector is arranged on base, and LED chip is placed in the bottom of reflector；Institute Stating reflector includes circumferentially adjacent eight reflectings surface successively, and the angle between each reflecting surface and base be 130 degree- 145 degree.
A kind of 2. paster LED bracket as claimed in claim 1, it is characterised in that：Reflecting surface includes the first big reflecting surface, first Small reflecting surface, the first adjoining reflecting surface of adjacent first big reflecting surface and the first small reflecting surface, second largest reflecting surface, adjacent first Second adjoining reflecting surface of small reflecting surface and second largest reflecting surface, the second small reflecting surface, adjacent second largest reflecting surface and second are small 3rd adjoining reflecting surface of reflecting surface and the neighbours of adjacent second small reflecting surface and the first big reflecting surface connect reflecting surface, whole Body is square, and the reflective surface area of the first big reflecting surface is equal to the reflective surface area of second largest reflecting surface, the reflection of the first small reflecting surface Area is equal to the reflective surface area of the second small reflecting surface, and the reflective surface area of first to fourth adjoining reflecting surface is equal, and first, second The reflective surface area of big reflecting surface is more than the reflective surface area of first, second small reflecting surface, the reflective surface area of first, second small reflecting surface More than the reflective surface area of first to fourth adjoining reflecting surface.
A kind of 3. paster LED bracket as claimed in claim 1, it is characterised in that：Base is metab.
A kind of 4. paster LED bracket as claimed in claim 3, it is characterised in that：Base is copper, the alloy of copper or aluminium close Gold.
A kind of 5. paster LED bracket as claimed in claim 1, it is characterised in that：The susceptor surface for installing LED chip sets electricity Plate reflector layer.
A kind of 6. paster LED bracket as claimed in claim 5, it is characterised in that：It is silver coating or nickel plating to electroplate reflector layer Upper silver layer.
A kind of 7. paster LED bracket as claimed in claim 1, it is characterised in that：The cathode and anode that base is set are positioned at same In one plane.
A kind of 8. paster LED bracket as claimed in claim 1, it is characterised in that：The material of reflecting surface is white plastic, ceramics Or resin.