CN201780989U

CN201780989U - Light-emitting diode

Info

Publication number: CN201780989U
Application number: CN2009202197803U
Authority: CN
Inventors: 陆亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-10-21
Filing date: 2009-10-21
Publication date: 2011-03-30
Anticipated expiration: 2019-10-21

Abstract

The utility model provides a light-emitting diode which comprises a rubber base, a copper base, a wafer and a lens. A groove is longitudinally formed in the middle of the rubber base; a containing cavity is arranged at the bottom of the rubber base; the containing cavity is communicated with the groove; an annular groove is formed at the top of the rubber base around the groove; the copper base is installed in the containing cavity; the lens is installed in the annular groove; the wafer is arranged on the side surface of the lens of the copper base; and at least one notch is longitudinally formed on the outer side wall of the annular groove. As the notch is formed on the outer side of the annular groove of the rubber base, when silica gel is filling into a space formed by the lens and the rubber base, gas in the space can be discharged to the outside from the notch, the occurrence of air bubble in the cavity of the lens is prevented, and the influence on the light quality of the LED caused by the air bubble is effectively prevented when the LED shines.

Description

A kind of light-emitting diode

Technical field

The utility model relates to photoelectric field, especially, relates to a kind of light-emitting diode.

Background technology

Along with development of science and technology, (Light Emitting Diode, LED) technology is applied in the daily life light-emitting diode more and more widely, as LED light fixture and LED display etc.LED is a kind of solid-state semiconductor device, and it can directly be converted into light to electricity.The heart of LED is a semi-conductive wafer that is closed by epoxy resin, and this semiconductor wafer is made up of two parts, and a part is a P type semiconductor, occupies an leading position in its hole, the inside, and the other end is a N type semiconductor, wherein mainly is electronics.When these two kinds of semiconductors couple together, just form one " P-N knot " between them.When electric current acted on this wafer by lead, electronics will be pushed to the P district, and hole-recombination in the electronics in the P district will be sent energy with the form of photon then.And the light wavelength color of light just is by the material decision that forms the P-N knot.

As shown in Figure 1, LED generally includes rubber base 101, copper pedestal 102, wafer 103, lens 104 and silica gel.Bottom at rubber base 101 offers cavity volume, offers cannelure on the top of rubber base 101, offers installing hole on the relative side walls of cannelure.Copper pedestal 102 is assemblied in the cavity volume inside of rubber base 101 bottoms, wafer 103 is assemblied in copper pedestal 102 upper surfaces, lens 104 are assemblied in the cannelure inside on rubber base 101 tops, and cover at copper pedestal 102 and wafer 103 tops, and silica gel is filled in the space between lens 104 and the rubber base 101.A lug is extended at the two ends of lens 104 root edges respectively, offers a through hole on each lug, and this lug lays respectively at the installing hole inside on the rubber base 101.When perfusion silica gel, silica gel can pour into from one of them through hole of lens 104, and the gas between lens 104 and the rubber base 101 can be discharged by another through hole of lens 104, yet, only have a through hole on the above-mentioned LED for exhaust, the gas between lens 104 and the rubber base 101 is difficult to all discharge, and forms bubble in the space between lens 104 and rubber base 101 easily, influence the filling of silica gel, and then influence the light quality effect of LED.

In a word, need the urgent technical problem that solves of those skilled in the art to be exactly: how a kind of LED to be provided, can effectively to solve the problem that when LED is luminous, influences light quality because of the existence of bubble.

The utility model content

Technical problem to be solved in the utility model provides a kind of LED, can effectively solve the problem that influences light quality when LED is luminous because of the existence of bubble.

In order to address the above problem, the utility model embodiment provides a kind of light-emitting diode, and described light-emitting diode comprises rubber base, copper pedestal, wafer and lens; The middle part of described rubber base is vertically arranged with groove, and the bottom of described rubber base is provided with cavity volume, and described cavity volume is communicated with groove, and the top of described rubber base is provided with cannelure around described groove; Described copper pedestal is installed in the described cavity volume, and described lens are installed in the described cannelure, and described wafer places on the lens side surface of described copper pedestal; The lateral wall of described cannelure is vertically arranged with at least one breach.

Preferably, the bottom of described cannelure and the corresponding position of described breach are provided with mesopore.

Preferably, in the space between described lens and the rubber base be silica gel filler.

Preferably, the cross section of described groove is circular.

Preferably, the cross section of described groove is a hexagon.

Preferably, the cross section of described breach is an arc.

Preferably, be provided with a plurality of metal accepting grooves that are used for ccontaining sheet metal in the described cannelure, be provided with installing hole in the rubber base between described cavity volume and the metal accepting groove.

Preferably, described lens are the semicircle spheroid, inner one-tenth one cavity, and a lug is extended at the root edge two ends of described lens respectively, and each described lug is provided with through hole.

Preferably, described rubber base is cylindrical.

Compared with prior art, the utlity model has following advantage:

Light-emitting diode of the present utility model is jagged in the arranged outside of the cannelure of rubber base, when perfusion silica gel in the space that surrounds by lens and rubber base, gas in the space can be discharged to the external world by breach, thereby avoided in the cavity of lens, producing bubble, effectively avoided LED when luminous, to influence light quality thus because of bubble.

Description of drawings

Fig. 1 is the structural representation of a kind of LED of prior art;

Fig. 2 is the structural representation of the vertical section of a kind of LED embodiment of the present utility model;

Fig. 3 is the perspective view of the rubber base part of LED embodiment shown in Figure 2.

Embodiment

For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.

With reference to Fig. 2, show the vertical section structural representation of a kind of LED embodiment of the utility model, specifically can comprise: rubber base 201, copper pedestal 202, wafer 203, lens 204 and silica gel 205.

For the ease of being well understood to the LED of present embodiment, below earlier the rubber base 201 of this LED embodiment is done to introduce.With reference to Fig. 3, show the perspective view of the rubber base 201 of this LED embodiment.201 one-tenth of the rubber bases of present embodiment are cylindrical, and its middle part is vertically arranged with the groove 2011 that connects rubber base 201, and the groove 2011 of present embodiment is cylindrical on the longitudinal direction of rubber base 201, its cross section is circular, certainly, also can be hexagon or other shape, to adapt to copper pedestal 202.With respect to other shape, cylindrical being easier to processing, the convenient production in enormous quantities in enormous quantities.The bottom of rubber base 201 is provided with cavity volume 2012, is used for ccontaining copper pedestal 202, and cavity volume 2012 can rationally be provided with according to the shape of copper pedestal 202, is standard to be fit to copper pedestal 202, and cavity volume 2012 and groove 2011 are communicated with.The top of rubber base 201 is provided with cannelure 2013 around groove 2011, and described cannelure 2013 is used to install lens 204, is provided with a plurality of metal accepting grooves 2014 that are used for ccontaining sheet metal in the cannelure 2013.The lateral wall of cannelure 2013 is provided with at least one breach 2015, and the breach number that is provided with in the present embodiment is four, and those skilled in the art also can be provided with suitable breach number according to actual needs, and the utility model need not be made restriction to this.Described breach 2015 vertically is provided with along cannelure 2013 lateral walls, the cross section camber, and certainly, breach 2015 also can be other shape, and as triangle, the utility model need not be made restriction to this.The bottom of cannelure 2013 also is provided with mesopore 2016 with described breach 2015 corresponding positions.The setting of mesopore 2016, the gas when having increased lens 204 perfusion silica gel 205 is discharged approach, has further reduced the influence of bubble to the luminous light quality of LED.In addition, the both sides between cannelure 2013 and the cavity volume 2012 are respectively arranged with the installing hole 2017 (as shown in fig. 1) that is used to install the connector (not shown), and, be used to install the gap slot 2018 of the lug 2041 on the lens 204.

Copper pedestal 202 places the cavity volume 2012 of rubber base 201, and outstanding described cavity volume 2012 to groove 2011 that cavity volume 2012 is communicated with in.Wafer 203 is arranged on the groove side surface of copper pedestal 202, connects external circuit by connecting line.Lens 204 are the semicircle spheroid that projects upwards, its inner cavity that forms, and a lug 2041 is extended at the two ends of the root edge of lens 204 respectively, offers a through hole on each lug 2041, can pour into silica gel 205 by this through hole in the cavity of lens 204.When by side through hole perfusion silica gel 205, the through hole of opposite side lug 2041 then can play the effect of discharging gas.Lens 204 are installed in the cannelure 2013 of described rubber base 201, and the lug 2041 at its two ends is installed on gap slot 2018 inside of rubber base 201 respectively, and mesopore 2016 is between the cannelure 2013 of lug on the lens 204 2041 and rubber base 201.Filling gel 205 between lens 204 and the rubber base 201, when the through hole by a side lug 2041 pours into silica gel 205 in the cavity of lens 204, a gas part that produces in lens 204 cavitys is discharged to the external world from the through hole of another lug 2041 of lens 204, another part gas then breach 2015 on mesopore 2016 and cannelure 2013 lateral walls is discharged to the external world.

The utility model is because of being provided with the outlet that a plurality of supplied gas are discharged on the cannelure 2013 of rubber base 201, therefore can effectively avoid when perfusion silica gel 205 in the cavity of lens 204, producing the phenomenon of bubble, and then reach LED can not influence light quality because of bubble when luminous effect.

More than a kind of LED provided by the utility model is described in detail, used specific case herein principle of the present utility model and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.

Claims

1. a light-emitting diode is characterized in that, comprises rubber base, copper pedestal, wafer and lens; The middle part of described rubber base is vertically arranged with groove, and the bottom of described rubber base is provided with cavity volume, and described cavity volume is communicated with groove, and the top of described rubber base is provided with cannelure around described groove; Described copper pedestal is installed in the described cavity volume, and described lens are installed in the described cannelure, and described wafer places on the lens side surface of described copper pedestal; The lateral wall of described cannelure is vertically arranged with at least one breach.

2. light-emitting diode according to claim 1 is characterized in that, the bottom of described cannelure and the corresponding position of described breach are provided with mesopore.

3. light-emitting diode according to claim 1 and 2 is characterized in that, is silica gel filler in the space between described lens and the rubber base.

4. light-emitting diode according to claim 1 and 2 is characterized in that, the cross section of described groove is circular.

5. light-emitting diode according to claim 1 and 2 is characterized in that, the cross section of described groove is a hexagon.

6. light-emitting diode according to claim 1 and 2 is characterized in that, the cross section of described breach is an arc.

7. light-emitting diode according to claim 1 and 2 is characterized in that, is provided with a plurality of metal accepting grooves that are used for ccontaining sheet metal in the described cannelure, is provided with installing hole in the rubber base between described cavity volume and the metal accepting groove.

8. light-emitting diode according to claim 1 and 2 is characterized in that, described lens are the semicircle spheroid, inner one-tenth one cavity, and a lug is extended at the root edge two ends of described lens respectively, and each described lug is provided with through hole.

9. Light-Emitting Diode according to claim 1 and 2 is characterized in that, described rubber base is cylindrical.