CN2891291Y

CN2891291Y - Barracuda type LED bracket and device

Info

Publication number: CN2891291Y
Application number: CNU2005200344157U
Authority: CN
Inventors: 连伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-06-07
Filing date: 2005-06-07
Publication date: 2007-04-18
Anticipated expiration: 2015-06-07

Abstract

The invention discloses an LED supporting frame of man-eating fish type which comprises a support with depression in the middle section and pins, wherein the bottom of the depression is used to be amounted with an LED tube core, the pins are arranged around the support, and the upper edge of the support extends toward the pins and forms a reflecting surface. The invention is further provided with an LED element which has the supporting frame. The invention has the advantages that the upper area of the support is extended to form a reflecting surface, which is able to effectively improve the problem of light leakage, thereby the leaking light can be thoroughly emitted after reflected by the upper surface of the extending support, greatly improving the optical efficiency.

Description

Piranha type led support and device

[technical field]

The present invention relates to the LED encapsulation technology, specifically relate to a kind of Piranha type led support and device.

[background technology]

In recent years, because the LED light-emitting diode is having development at full speed aspect the key technical indexes such as brightness, be widely used in the multiple occasion of Landscape Lighting, large scale display, and will have entered the general lighting field on a large scale.In the development activities of LED, the most most important also is the luminous intensity no more than LED of greatest concern, and the improvement of this respect at present concentrates in the exploration of LED luminescent material.And on the other hand, very important is, the encapsulation technology of LED can produce sizable role and influence equally to the final illumination effect that shows of LED product, that is to say, adopt same LED tube core and carry out the encapsulation of different structure form, the illumination effect possibility gap that obtains at last is very far away.The package design of LED is from simple 2 leaded packages such as early stage column type, pyramid type, straw hat types, experienced very great development to the structures such as Piranha type, PLCC type that are adapted to gradually than the great power LED tube core.Bringing into play the luminous power of LED tube core to greatest extent and reducing heat accumulation as much as possible is the unremitting pursuit of package designer all the time.

Piranha type support is a kind of simple in structure and have the LED package support of better heat dissipation effect, often is used to the encapsulation of power-type LED.The general employing of existing Piranha support structure shown in Figure 1 comprises the cup-shaped supporter 1 that is positioned at the center and is positioned at its four pins 2 on every side.Because its supporter top surrounding area is narrow and small and have big space between the pin, the LED lamp can be seen bright hot spot in use on the circuit board below the supporter.This explanation has quite a few light not to be launched away, is heat but drained on the circuit board and finally dissipated, and promotes with respect to hard-won power of LED material and brightness, and this is very big waste.

In addition, because the light that the LED tube core sends does not have directivity, it sends towards all directions, those transmit directions are not always to wish and can finally launch by the reflection of concave inner surface over against the light of recessed openings, but generally speaking, the light that the LED tube core sends near the part of bottom can't be launched by repeatedly reflecting, and final the dissipation is heat.This has not only reduced the illumination effect of LED, and steady operation and the life-span to LED is extremely harmful simultaneously.

[summary of the invention]

The technical problem to be solved in the present invention is to overcome above-mentioned shortcoming to provide a kind of and can effectively improve LED device " light leak " problem, reduces the Piranha type led support and the device of photo-thermal conversion.

In order to solve the problems of the technologies described above, the technical solution used in the present invention is: a kind of Piranha type led support, comprise supporter and pin that the middle part has depression, the concave bottom of described supporter is used to install the LED tube core, described pin is arranged on around the supporter, the supporter top edge is extended to its pin place, forms a reflective surface.

Preferably, described reflective surface has the slightly high arc shape in edge.

Preferably, around being used to install the position of LED tube core, described concave bottom also have a circle to be lower than the groove of lower surface.

Further preferably, the degree of depth of described groove is 0.1～1.0mm.

For purpose of the present invention also provides, in encapsulating structure, adopt the LED device of above-mentioned any one led support.

Adopt technique scheme, beneficial technical effects of the present invention is: 1) adopt to the present invention is directed to the improvement that Piranha type support carries out, can effectively improve its " light leak " problem, make the light (promptly by the light of top package interface reflected back) that leaks down after extended supporter upper surface reflection, fully launched, improved light efficiency greatly.2) make reflective surface have the slightly high arc shape in edge, can better play the effect that makes in the reflection ray direction set, lower light and come and go number of times, further improve light efficiency.3) around the concave bottom of supporter is used to install the position of LED tube core, the groove that a circle is lower than lower surface is set, not only increased the reflective area of concave inner surface, and the position of this groove is lower than lower surface, make the light that the LED tube core sends downwards, particularly the light that sends near the part of bottom of LED tube core can effectively be reflected away by the surface of groove, and the light efficiency about 5% of the raising LED that can (adopt identical LED tube core and identical outer enclosure structure) under the identical situation of other conditions behind the groove is set.The reduction that this just means the enhancing simultaneous heat accumulation of illumination effect has improved the performance and the degree of reliability of LED product.4) actual effect and technologic operability have been considered in the depth of groove parametric synthesis that is provided, make each support production unit can utilize existing equipment to carry out the manufacturing of product of the present invention and the enforcement of the inventive method, can either bring into play good reflecting effect and look after technologic ease for operation again, be very beneficial for the rapid popularization and the use of new technology of the present invention.

The present invention is described in further detail below in conjunction with the drawings and specific embodiments:

[description of drawings]

Fig. 1 is existing Piranha type led support structural representation.

Fig. 2 is a kind of Piranha supporting structure schematic diagram with reflective surface.

Fig. 3 is a kind of supporting body structure schematic diagram of Piranha type led support.

[embodiment]

A kind of Piranha type led support in conjunction with Fig. 2, comprises supporter 3 and pin 4 that the middle part has depression, the concave bottom of described supporter 3 is used to install the LED tube core, described pin 4 is arranged on around the supporter, and supporter 3 top edge are extended to its pin place, form a reflective surface 5.So, the light that led chip sends just can not drain on the circuit board via the space between supporter and the pin greatly in the back of being returned by the outer enclosure boundary reflection, but is reflected away again by supporter top extended " reflective surface ".This reflection process can repeated several times, and always most at every turn light sees through package interface and small part is reflected once more, and generally speaking, light efficiency can be highly improved.Make reflective surface have the slightly high arc shape in edge in order to improve the reflecting effect of reflective surface, to be more preferably, so more help concentrating of emergent ray.Described reflective surface can have the edge contour shape of any suitable, and be not limited among Fig. 2 represented go out square.In addition, make reflective surface have the slightly high arc shape in edge, so more help concentrating of emergent ray in order to improve the reflecting effect of reflective surface, to be more preferably.

Above-mentioned Piranha type led support preferably adopts supporting body structure as shown in Figure 3, supporter 3 middle parts have depression, LED tube core B is installed in the bottom of described depression, and its position of LED tube core B being installed in concave bottom also has a circle to be lower than the groove C of lower surface on every side.The setting of groove C can improve the probability that LED tube core emitted light is launched away greatly, thereby reduces the heat accumulation that the photo-thermal conversion reduces the LED device.Can form groove C by the mode of die stamping for the support that adopts metal support structure.Consider effect, the degree of depth of groove is preferably more than 0.1mm, but should not be greater than 1mm, otherwise existing equipment is difficult to finish this punching out process.And if groove is dark excessively, the order of reflection of light in groove is too much, also can bring unnecessary absorption and decay, causes the rising of tube core working temperature, and this is harmful to equally.

Claims

1, a kind of Piranha type led support, comprise supporter and pin that the middle part has depression, the concave bottom of described supporter is used to install the LED tube core, and described pin is arranged on around the supporter, it is characterized in that: the supporter top edge is extended to its pin place, forms a reflective surface.

2, Piranha type led support according to claim 1, it is characterized in that: described reflective surface has the slightly high arc shape in edge.

3, Piranha type led support according to claim 1 and 2 is characterized in that: also have a circle to be lower than the groove of lower surface be used to install the position of LED tube core in described concave bottom around.

4, Piranha type led support according to claim 3, it is characterized in that: the degree of depth of described groove is 0.1～1.0mm.

5, a kind of LED device that in encapsulating structure, adopts the above-mentioned any described Piranha type of claim led support.